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Garcin T, Gaudric A, Sikorav A, Tadayoni R, Couturier A. Internal limiting membrane peeling for large macular holes induces only structural remodeling without functional impairment over 12 years. Ophthalmol Retina 2024:S2468-6530(24)00429-9. [PMID: 39276867 DOI: 10.1016/j.oret.2024.09.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2024] [Revised: 09/04/2024] [Accepted: 09/09/2024] [Indexed: 09/17/2024]
Abstract
PURPOSE To evaluate the very long-term functional and structural outcomes of internal limiting membrane (ILM) peeling for full-thickness macular holes (FTMH). DESIGN Observational case series nested within a multicenter, randomized, controlled clinical trial (RCT) (ClinicalTrials.gov: NCT00190190). SUBJECTS Patients who underwent vitrectomy with or without ILM peeling for an idiopathic large FTMH in a tertiary ophthalmology center, with a minimum follow-up of 10 years after surgery. METHODS Review of charts, spectral domain optical coherence tomography (SD-OCT) scans, OCT-angiography (OCT-A) scans, and microperimetry of patients originally enrolled in the RCT. MAIN OUTCOME MEASURES Primary outcome was functional assessment in both groups (ILM peeling or not) including the retinal sensitivity (RS), distance and near best-corrected visual acuity (BCVA), number of eyes achieving ≥0.3 logMAR more than 10 years after surgery. Secondary outcomes were structural assessment in the entire 3x3mm and 6x6mm areas, and regionally in the different areas of the ETDRS grid: OCT and OCT-A biomarkers in both groups and fellow eyes. RESULTS Thirteen eyes of 13 patients with a mean follow-up of 12 ±0.73 years were included. The mean RS and BCVA, or visual improvement did not differ between ILM peeling (n=8) and no peeling (n=5) (all p>0.05). The dissociated optic nerve-fiber layers on en-face OCT were only observed in eyes with ILM peeling, predominantly in temporal parafoveal (20%) and perifoveal (19%) rings. The mean total retinal thickness and inner retinal thickness in the parafoveal ring were significantly lower in peeled eyes (309 ±11 μm and 94 ±9 μm respectively) versus non-peeled eyes (330 ±21 μm and 108 ±11 μm respectively; p=0.037 and p=0.040), without significant difference in ganglion cell or retinal nerve fiber layers. Accordingly, the mean superficial capillary plexus density in the parafoveal ring was significantly lower in eyes with peeling versus without, (39.65 ±3.76 % versus 47.22 ±4.00; p=0.005). The mean foveal avascular zone area was smaller in eyes with peeling versus without (0.24 ±0.05 mm2 versus 0.42 ±0.13 respectively, p=0.005), CONCLUSION: Despite persistent structural changes especially in the parafoveal ring, ILM peeling for idiopathic large FTMH did not appear to impact long-term RS or BCVA over 12 years.
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Affiliation(s)
- Thibaud Garcin
- Ophthalmology Department, Hospital Lariboisiere and Fernand-Widal, Paris, France; Ophthalmology Department, University Hospital, Saint-Etienne, France.
| | - Alain Gaudric
- Ophthalmology Department, Hospital Lariboisiere and Fernand-Widal, Paris, France
| | - Anne Sikorav
- Ophthalmology Department, Hospital Lariboisiere and Fernand-Widal, Paris, France
| | - Ramin Tadayoni
- Ophthalmology Department, Hospital Lariboisiere and Fernand-Widal, Paris, France
| | - Aude Couturier
- Ophthalmology Department, Hospital Lariboisiere and Fernand-Widal, Paris, France
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Wolffsohn JS, Naroo SA, Bullimore MA, Craig JP, Davies LN, Markoulli M, Schnider C, Morgan PB. BCLA CLEAR Presbyopia: Definitions. Cont Lens Anterior Eye 2024; 47:102155. [PMID: 38609792 DOI: 10.1016/j.clae.2024.102155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/14/2024]
Abstract
Presbyopia is often the first sign of ageing experienced by humans. Standardising terminology and adopting it across the BCLA CLEAR Presbyopia reports, improves consistency in the communication of the evidence-based understanding of this universal physiological process. Presbyopia can be functionally and psychologically debilitating, especially for those with poor access to eyecare. Presbyopia was defined as occurring when the physiologically normal age-related reduction in the eye's focusing range reaches a point that, when optimally corrected for far vision, the clarity of vision at near is insufficient to satisfy an individual's requirements. Accommodation is the change in optical power of the eye due to a change in crystalline lens shape and position, whereas pseudo-accommodation is the attainment of functional near vision in an emmetropic or far-corrected eye without changing the refractive power of the eye. Other definitions specific to vision and lenses for presbyopia were also defined. It is recommended that these definitions be consistently adopted in order to standardise future research, clinical evaluations and education.
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Affiliation(s)
- James S Wolffsohn
- College of Health & Life Sciences, Aston University, Birmingham, United Kingdom.
| | - Shehzad A Naroo
- College of Health & Life Sciences, Aston University, Birmingham, United Kingdom
| | | | - Jennifer P Craig
- Department of Ophthalmology, The University of Auckland, Auckland, New Zealand
| | - Leon N Davies
- College of Health & Life Sciences, Aston University, Birmingham, United Kingdom
| | - Maria Markoulli
- School of Optometry & Vision Science, University of New South Wales, Sydney, Australia
| | - Cristina Schnider
- Eurolens Research, Division of Pharmacy and Optometry, University of Manchester, United Kingdom
| | - Philip B Morgan
- Eurolens Research, Division of Pharmacy and Optometry, University of Manchester, United Kingdom
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Wolffsohn JS, Berkow D, Chan KY, Chaurasiya SK, Fadel D, Haddad M, Imane T, Jones L, Sheppard AL, Vianya-Estopa M, Walsh K, Woods J, Zeri F, Morgan PB. BCLA CLEAR Presbyopia: Evaluation and diagnosis. Cont Lens Anterior Eye 2024; 47:102156. [PMID: 38641525 DOI: 10.1016/j.clae.2024.102156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/21/2024]
Abstract
It is important to be able to measure the range of clear focus in clinical practice to advise on presbyopia correction techniques and to optimise the correction power. Both subjective and objective techniques are necessary: subjective techniques (such as patient reported outcome questionnaires and defocus curves) assess the impact of presbyopia on a patient and how the combination of residual objective accommodation and their natural DoF work for them; objective techniques (such as autorefraction, corneal topography and lens imaging) allow the clinician to understand how well a technique is working optically and whether it is the right choice or how adjustments can be made to optimise performance. Techniques to assess visual performance and adverse effects must be carefully conducted to gain a reliable end-point, considering the target size, contrast and illumination. Objective techniques are generally more reliable, can help to explain unexpected subjective results and imaging can be a powerful communication tool with patients. A clear diagnosis, excluding factors such as binocular vision issues or digital eye strain that can also cause similar symptoms, is critical for the patient to understand and adapt to presbyopia. Some corrective options are more permanent, such as implanted inlays / intraocular lenses or laser refractive surgery, so the optics can be trialled with contact lenses in advance (including differences between the eyes) to better communicate with the patient how the optics will work for them so they can make an informed choice.
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Affiliation(s)
- James S Wolffsohn
- School of Optometry, Health and Life Sciences, Aston University, Birmingham, United Kingdom.
| | - David Berkow
- Department of Ophthalmology, Rambam Health Care Campus, Haifa, Israel
| | - Ka Yin Chan
- Centre for Eye and Vision Research (CEVR), 17W Hong Kong Science Park, Hong Kong
| | - Suraj K Chaurasiya
- Department of Contact Lens and Anterior Segment, CL Gupta Eye Institute, Moradabad, India; Department of Optometry and Vision Science, CL Gupta Eye Institute, Moradabad, India
| | - Daddi Fadel
- Centre for Ocular Research & Education (CORE), School of Optometry & Vision Science, University of Waterloo, Waterloo, Canada
| | - Mera Haddad
- Faculty of Applied Medical Sciences, Department of Allied Medical Sciences, Jordan University of Science and Technology, Irbid, Jordan
| | - Tarib Imane
- Department of Ophthalmology and Visual Sciences, Illinois Eye and Ear Infirmary, College of Medicine, University of Illinois at Chicago, United States
| | - Lyndon Jones
- Centre for Eye and Vision Research (CEVR), 17W Hong Kong Science Park, Hong Kong; Centre for Ocular Research & Education (CORE), School of Optometry & Vision Science, University of Waterloo, Waterloo, Canada
| | - Amy L Sheppard
- School of Optometry, Health and Life Sciences, Aston University, Birmingham, United Kingdom
| | - Marta Vianya-Estopa
- Vision and Hearing Research Centre, Anglia Ruskin University, Cambridge, United Kingdom
| | - Karen Walsh
- CooperVision Inc., San Ramon, CA, United States
| | - Jill Woods
- Centre for Ocular Research & Education (CORE), School of Optometry & Vision Science, University of Waterloo, Waterloo, Canada
| | - Fabrizio Zeri
- School of Optometry, Health and Life Sciences, Aston University, Birmingham, United Kingdom; University of Milano-Bicocca, Department of Materials Science, Milan, Italy
| | - Philip B Morgan
- Eurolens Research, Division of Pharmacy and Optometry, University of Manchester, United Kingdom
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Bano T, Wolffsohn JS, Sheppard AL. Assessment of visual function using mobile Apps. Eye (Lond) 2024; 38:2406-2414. [PMID: 38509183 PMCID: PMC11306548 DOI: 10.1038/s41433-024-03031-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Revised: 02/19/2024] [Accepted: 03/08/2024] [Indexed: 03/22/2024] Open
Abstract
With the advances in smartphone and tablet screens, as well as their processing power and software, mobile apps have been developed reporting to assess visual function. This review assessed those mobile apps that have been evaluated in the scientific literature to measure visual acuity, reading metrics, contrast sensitivity, stereoacuity, colour vision and visual fields; these constitute just a small percentage of the total number of mobile apps reporting to measure these metrics available for tablets and smartphones. In general, research suggests that most of the mobile apps evaluated can accurately mimic most traditionally paper-based tests of visual function, benefitting from more even illumination from the backlit screen and aspects such as multiple tests and versions (to minimise memorisation) being available on the same equipment. Some also utilise the in-built device sensors to monitor aspects such as working distance and screen tilt. As the consequences of incorrectly recording visual function and using this to inform clinical management are serious, clinicians must check on the validity of a mobile app before adopting it as part of clinical practice.
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Affiliation(s)
- Thaiba Bano
- School of Optometry, College of Health and Life Sciences, Aston University, Birmingham, UK
| | - James S Wolffsohn
- School of Optometry, College of Health and Life Sciences, Aston University, Birmingham, UK.
| | - Amy L Sheppard
- School of Optometry, College of Health and Life Sciences, Aston University, Birmingham, UK
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Radner W. Toward an internationally accepted standard for reading charts. Prog Retin Eye Res 2024; 101:101262. [PMID: 38574851 DOI: 10.1016/j.preteyeres.2024.101262] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2024] [Revised: 03/28/2024] [Accepted: 04/01/2024] [Indexed: 04/06/2024]
Abstract
Patients who suffer from sight-threatening eye diseases share a desire to regain a comfortable reading ability. In light of the modern advances achieved in ophthalmic diagnosis and therapy, and because a significant lack of comparability between reading charts still exists, there is an increasing need for a worldwide standard in the form of a norm for diagnostic reading charts. Already, applied advancements such as digital print, which allow a calibration of the print sizes of reading charts in correctly progressing geometric proportions by using the actual height of a lower case "x" in millimeters (x-height), and psychophysically standardizing reading charts and their test items by applying modern statistical methods have significantly contributed to establishing a norm for reading charts. In 2020, a proposal of the British delegation was accepted by the International Organization for Standardization (ISO) group "Visual Optics and Optical Instruments," and a working group was established. Bearing in mind the efforts of the ISO with regard to an international norm, this review article is intended to (a) give an overview of the historical background and related normative approaches for diagnostic reading tests used in ophthalmology and optometry, (b) explain psychophysical and technical concerns, and (c) discuss the possibilities and limits of concepts that seem relevant to developing a modern standard for reading charts.
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Affiliation(s)
- Wolfgang Radner
- Karl Landsteiner University of Health Sciences, Dr. Karl-Dorrek-Straße 30, 3500, Krems, Austria; Department of Ophthalmology, University Hospital St. Pölten, Dunant-Platz 1, 3100, St. Pölten, Austria; Austrian Academy of Ophthalmology, Mollgasse 11, 1180, Vienna, Austria.
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Grasso PA, Gurioli M, Boccardo L. Effects of brightness variations on a smartphone-based version of Radner reading charts. Eye (Lond) 2024; 38:1556-1561. [PMID: 38321175 PMCID: PMC11126558 DOI: 10.1038/s41433-024-02950-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Revised: 12/28/2023] [Accepted: 01/23/2024] [Indexed: 02/08/2024] Open
Abstract
OBJECTIVE The purpose of this study was to evaluate the equivalence of smartphone-based measurements of near visual acuity under different screen brightness conditions with a standard near visual acuity test. METHODS On a sample of 85 participants, we have evaluated near visual acuity with a smartphone-based version of the Radner reading chart at three distinct screen brightness levels. Results have been compared with those obtained with classical Radner paper charts. RESULTS We have found that, when a sufficient screen brightness is employed, the smartphone-based version of the Radner reading chart produces results that are in line with the paper Radner charts while low brightness levels lead to a significant underestimation of reading acuities. This result was consistent across different refractive conditions. CONCLUSIONS In conclusion, we have shown that handheld devices, such as smartphones, can be potentially exploited for remote measurements of near visual acuity provided a correct control of brightness screen is employed.
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Affiliation(s)
- Paolo A Grasso
- Department of Physics and Astronomy, University of Florence, Florence, Italy.
| | - Massimo Gurioli
- Department of Physics and Astronomy, University of Florence, Florence, Italy
| | - Laura Boccardo
- Department of Physics and Astronomy, University of Florence, Florence, Italy
- Institute for Research and Studies in Optics and Optometry, Vinci (FI), Italy
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Ricardi F, Reccalenda I, Boscia G, Gelormini F, Cimorosi F, Novarese C, Marolo P, Parisi G, Bandello F, Borrelli E, Reibaldi M. Retinal OCT biomarkers associated with reading performance in patients with persistent vs. resolved diabetic macular edema. Eur J Ophthalmol 2024:11206721241248682. [PMID: 38632942 DOI: 10.1177/11206721241248682] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/19/2024]
Abstract
BACKGROUND Recent advancements in imaging technologies, particularly structural optical coherence tomography (OCT), have improved the understanding of diabetic macular edema (DME) pathophysiology and provided valuable biomarkers for disease progression and visual outcomes. This prospective study aimed to investigate the association between specific retinal biomarkers identified through OCT imaging and reading performance metrics in patients with previously treated persistent versus resolved DME and good visual acuity. METHODS Forty-nine eyes from 35 patients with a history of DME were enrolled. Reading performance was assessed using the Radner reading charts, which include standardized sentences with geometrically progressing print sizes. Structural alterations in the inner and outer retina, as well as the retinal pigment epithelium (RPE), were graded based on OCT images. RESULTS Reading performance, measured as maximum reading speed, was associated with specific retinal biomarkers. The disruption of the ellipsoid zone (EZ) in the parafoveal region and the presence of disorganization of the inner retinal layers (DRIL) in the parafovea were correlated with reduced reading speed. These associations were independent of the presence of intraretinal or subretinal fluid. CONCLUSIONS Understanding the relationship between retinal biomarkers and reading performance could contribute to a comprehensive evaluation of visual function and quality of life in patients with DME, leading to better management strategies and treatment outcomes.
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Affiliation(s)
| | | | - Giacomo Boscia
- Department of Basic Medical Sciences, Neuroscience, and Sense Organs, University of Bari "Aldo Moro", Bari, Italy
| | | | | | | | - Paola Marolo
- Department of Ophthalmology, University of Turin, Turin, Italy
| | | | - Francesco Bandello
- Vita-Salute San Raffaele University Milan, Milan, Italy
- IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Enrico Borrelli
- Department of Ophthalmology, University of Turin, Turin, Italy
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Boscia G, Ricardi F, Gelormini F, Marica V, Conte F, Ghilardi A, Viggiano P, Marolo P, Bandello F, Borrelli E, Reibaldi M. INTERSESSION REPEATABILITY OF READING PERFORMANCE MEASURES IN PATIENTS WITH NEOVASCULAR AGE-RELATED MACULAR DEGENERATION. Retina 2024; 44:707-713. [PMID: 38064659 DOI: 10.1097/iae.0000000000004015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/28/2024]
Abstract
PURPOSE To assess the intersession repeatability of reading performance measures in patients with previously treated neovascular age-related macular degeneration and good best-corrected visual acuity (≥20/40 Snellen). METHODS Ninety-one patients (91 eyes) with a diagnosis of previously treated neovascular age-related macular degeneration and good best-corrected visual acuity (≥20/40 Snellen) were prospectively enrolled. Reading performance metrics were assessed using Radner charts, and these measurements were repeated after 7 days to obtain the intersession repeatability. To test repeatability, we calculated the intraclass correlation coefficient, the 95% coefficient of repeatability, and the coefficient of variation for each reading parameter: 1) reading acuity (RA-LogRAD); 2) maximal reading speed-words per minute; 3) RA score (RA score-LogRAD); and 4) critical print size-LogRAD. RESULTS Mean ± standard deviation best-corrected visual acuity was 0.13 ± 0.01 logMAR [range: 0.00-0.30 logMAR]. The intraclass correlation coefficient values indicated a good reliability for all the analyzed metrics (0.901 for RA; 0.859 for max reading speed; 0.906 for RA score; and 0.868 for critical print size). The coefficient of repeatability was 0.2 LogRAD for RA, 63.2 words per minute for max reading speed, 0.2 LogRAD for RA score, and 0.2 LogRAD for critical print size. Coefficient of variation was 5.5% for RA, 8.9% for max reading speed, 5.8% for RA score, and 6.9% for critical print size. CONCLUSION Reading performance metrics are characterized by good values of intersession repeatability in patients with neovascular age-related macular degeneration with good best-corrected visual acuity. Our findings may grant the employment of such measures in trials assessing the visual outcome in these patients.
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Affiliation(s)
| | | | | | | | - Fabio Conte
- Department of Ophthalmology, University of Turin, Italy
| | | | - Pasquale Viggiano
- Department of Basic Medical Sciences, Neuroscience and Sense Organs, University of Bari "Aldo Moro", Bari, Italy
| | - Paola Marolo
- Department of Ophthalmology, University of Turin, Italy
| | - Francesco Bandello
- Vita-Salute San Raffaele University Milan, Italy; and
- IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Enrico Borrelli
- Vita-Salute San Raffaele University Milan, Italy; and
- IRCCS San Raffaele Scientific Institute, Milan, Italy
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Kim US, Kim KS, Kim YS. Korean version of the MNREAD acuity chart. Sci Rep 2024; 14:7429. [PMID: 38548804 PMCID: PMC10978959 DOI: 10.1038/s41598-024-57717-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2024] [Accepted: 03/21/2024] [Indexed: 04/01/2024] Open
Abstract
To investigate the efficacy of the Korean version of the Minnesota low vision reading chart. A Korean version consisting of 38 items was prepared based on the MNREAD acuity chart developed by the University of Minnesota. A linguist composed the representative sentences, each containing nine words from second and third grade levels of elementary school. Reading ability was measured for 20-35-year-old subjects with normal visual acuity (corrected visual acuity of logMAR 0.0 or better). The maximum reading speed (words per minute [wpm]) for healthy participants, reading acuity (smallest detectable font size), and critical print size (smallest font size without reduction of reading speed) were analyzed. The average age of the subjects was 28.3 ± 2.6 years (male:female ratio, 4:16). The average reading time for 38 sentences was 3.66 ± 0.69 s, with no differences in the average maximum reading speed between sentences (p = 0.836). The maximum reading speed was 174.2 ± 29.3 and 175.4 ± 27.8 in the right and left eye, respectively. Reading acuity was measured as logMAR 0.0 or better in 80% of the cases. All subjects showed a critical print size of 0.2 logMAR or better. The overall reading ability can be measured using the Korean version of the MNREAD acuity chart, thereby making it useful in measuring the reading ability of those with Korean as their native language.
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Affiliation(s)
- Ungsoo Samuel Kim
- Department of Ophthalmology, Chung-Ang University, Gwangmyeong Hospital, Deokan-Ro 110, Gwangmyeong-si, Gyeonggi-do, 14353, South Korea.
- Korean Low Vision Society, Seoul, South Korea.
| | - Keun Soo Kim
- Korean Low Vision Society, Seoul, South Korea
- DMC Good Eye Clinic, Seoul, South Korea
| | - Yoon-Shin Kim
- Department of Korean Language Education, College of Education, Incheon National University, Incheon, South Korea
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Brant A, Kolomeyer N, Goldberg JL, Haller J, Lee CS, Lee AY, Lorch AC, Miller JW, Hyman L, Pershing S. Evaluating Visual Acuity in the American Academy of Ophthalmology IRIS® Registry. OPHTHALMOLOGY SCIENCE 2024; 4:100352. [PMID: 37869025 PMCID: PMC10587626 DOI: 10.1016/j.xops.2023.100352] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Revised: 06/10/2023] [Accepted: 06/13/2023] [Indexed: 10/24/2023]
Abstract
Objective To describe visual acuity data representation in the American Academy of Ophthalmology Intelligent Research in Sight (IRIS) Registry and present a data-cleaning strategy. Design Reliability and validity study. Participants Patients with visual acuity records from 2018 in the IRIS Registry. Methods Visual acuity measurements and metadata were identified and characterized from 2018 IRIS Registry records. Metadata, including laterality, assessment method (distance, near, and unspecified), correction (corrected, uncorrected, and unspecified), and flags for refraction or pinhole assessment were compared between Rome (frozen April 20, 2020) and Chicago (frozen December 24, 2021) versions. We developed a data-cleaning strategy to infer patients' corrected distance visual acuity in their better-seeing eye. Main Outcome Measures Visual acuity data characteristics in the IRIS Registry. Results The IRIS Registry Chicago data set contains 168 920 049 visual acuity records among 23 001 531 unique patients and 49 968 974 unique patient visit dates in 2018. Visual acuity records were associated with refraction in 5.3% of cases, and with pinhole in 11.0%. Mean (standard deviation) of all measurements was 0.26 (0.41) logarithm of the minimum angle of resolution (logMAR), with a range of - 0.3 to 4.0 A plurality of visual acuity records were labeled corrected (corrected visual acuity [CVA], 39.1%), followed by unspecified (37.6%) and uncorrected (uncorrected visual acuity [UCVA], 23.4%). Corrected visual acuity measurements were paradoxically worse than same day UCVA 15% of the time. In aggregate, mean and median values were similar for CVA and unspecified visual acuity. Most visual acuity measurements were at distance (59.8%, vs. 32.1% unspecified and 8.2% near). Rome contained more duplicate visual acuity records than Chicago (10.8% vs. 1.4%). Near visual acuity was classified with Jaeger notation and (in Chicago only) also assigned logMAR values by Verana Health. LogMAR values for hand motion and light perception visual acuity were lower in Chicago than in Rome. The impact of data entry errors or outliers on analyses may be reduced by filtering and averaging visual acuity per eye over time. Conclusions The IRIS Registry includes similar visual acuity metadata in Rome and Chicago. Although fewer duplicate records were found in Chicago, both versions include duplicate and atypical measurements (i.e., CVA worse than UCVA on the same day). Analyses may benefit from using algorithms to filter outliers and average visual acuity measurements over time. Financial Disclosures Proprietary or commercial disclosure may be found found in the Footnotes and Disclosures at the end of this article.
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Affiliation(s)
- Arthur Brant
- Spencer Center for Vision Research, Byers Eye Institute at Stanford, Department of Ophthalmology, Stanford University, Palo Alto, California
| | - Natasha Kolomeyer
- Wills Eye Hospital, Department of Ophthalmology, Sidney Kimmel Medical Center at Thomas Jefferson University, Philadelphia, Pennsylvania
| | - Jeffrey L. Goldberg
- Spencer Center for Vision Research, Byers Eye Institute at Stanford, Department of Ophthalmology, Stanford University, Palo Alto, California
- Ophthalmology and Eye Care Services, VA Palo Alto Health Care System, Palo Alto, CA
| | - Julia Haller
- Wills Eye Hospital, Department of Ophthalmology, Sidney Kimmel Medical Center at Thomas Jefferson University, Philadelphia, Pennsylvania
| | - Cecilia S. Lee
- Department of Ophthalmology, University of Washington, Seattle, Washington
- Roger and Angie Karalis Johnson Retina Center, Seattle, Washington
| | - Aaron Y. Lee
- Department of Ophthalmology, University of Washington, Seattle, Washington
- Roger and Angie Karalis Johnson Retina Center, Seattle, Washington
| | - Alice C. Lorch
- Department of Ophthalmology, Massachusetts Eye and Ear, Harvard Medical School, Boston, Massachusetts
| | - Joan W. Miller
- Department of Ophthalmology, Massachusetts Eye and Ear, Harvard Medical School, Boston, Massachusetts
| | - Leslie Hyman
- Wills Eye Hospital, Department of Ophthalmology, Sidney Kimmel Medical Center at Thomas Jefferson University, Philadelphia, Pennsylvania
- Vickie and Jack Farber Vision Research Center at Wills Eye Hospital, Philadelphia, Pennsylvania
| | - Suzann Pershing
- Spencer Center for Vision Research, Byers Eye Institute at Stanford, Department of Ophthalmology, Stanford University, Palo Alto, California
- Ophthalmology and Eye Care Services, VA Palo Alto Health Care System, Palo Alto, CA
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Wolffsohn JS. 2022 Glenn A. Fry Award lecture: Enhancing clinical assessment for improved ophthalmic management. Optom Vis Sci 2024; 101:12-24. [PMID: 38350054 DOI: 10.1097/opx.0000000000002102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/15/2024] Open
Abstract
ABSTRACT Detailed clinical assessment is critical to allow sensitive evaluation of the eye and its management. As technology advances, these assessment techniques can be adapted and refined to improve the detection of pathological changes of ocular tissue and their impact on visual function. Enhancements in optical medical devices including spectacle, contact, and intraocular lenses have allowed for a better understanding of the mechanism and amelioration of presbyopia and myopia control. Advancements in imaging technology have enabled improved quantification of the tear film and ocular surface, informing diagnosis and treatment strategies. Miniaturized electronics, large processing power, and in-built sensors in smartphones and tablets capacitate more portable assessment tools for clinicians, facilitate self-monitoring and treatment compliance, and aid communication with patients. This article gives an overview of how technology has been used in many areas of eye care to improve assessments and treatment and provides a snapshot of some of my studies validating and using technology to inform better evidence-based patient management.
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Nandzik M, Wylęgała E, Wylęgała A, Szkodny D, Roszkowska AM, Wróblewska-Czajka E. Visual Acuity Examination Methodology in Keratoconus. J Clin Med 2023; 12:7620. [PMID: 38137688 PMCID: PMC10743794 DOI: 10.3390/jcm12247620] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Revised: 11/18/2023] [Accepted: 12/08/2023] [Indexed: 12/24/2023] Open
Abstract
Visual acuity is one of the most important parameters for evaluating the vision of patients with keratoconus. This study reviewed 295 articles related to keratoconus published between 2017 and 2022 in which visual acuity was one of the parameters measured. The methodology of visual acuity testing in studies on keratoconus was thoroughly analyzed. The analysis showed that the most commonly indicated chart for testing visual acuity papers on keratoconus is the Snellen chart. It was shown that in 150 out of 295 articles, the authors do not describe the methodology for testing visual acuity. What is more, it was also shown that in 68 of the 295 articles which were analyzed, a procedure for converting visual acuity tested with a Snellen chart into a logMAR scale was used. In this review, we discuss the validity and reliability of such conversions. In particular, we show that insufficient description of visual acuity testing methodology and lack of information on the conversion of visual acuity results into the logMAR scale may contribute to the misinterpretation of visual acuity test results.
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Affiliation(s)
- Magdalena Nandzik
- Department of Ophthalmology, District Railway Hospital in Katowice, Medical University of Silesia, 40-760 Katowice, Poland
| | - Edward Wylęgała
- Department of Ophthalmology, District Railway Hospital in Katowice, Medical University of Silesia, 40-760 Katowice, Poland
| | - Adam Wylęgała
- Department of Ophthalmology, District Railway Hospital in Katowice, Medical University of Silesia, 40-760 Katowice, Poland
| | - Dominika Szkodny
- Department of Ophthalmology, District Railway Hospital in Katowice, Medical University of Silesia, 40-760 Katowice, Poland
| | - Anna Maria Roszkowska
- Ophthalmology Clinic, Department of Biomedical Sciences, University of Messina, 98100 Messina, Italy
| | - Ewa Wróblewska-Czajka
- Department of Ophthalmology, District Railway Hospital in Katowice, Medical University of Silesia, 40-760 Katowice, Poland
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13
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Heier JS, Lad EM, Holz FG, Rosenfeld PJ, Guymer RH, Boyer D, Grossi F, Baumal CR, Korobelnik JF, Slakter JS, Waheed NK, Metlapally R, Pearce I, Steinle N, Francone AA, Hu A, Lally DR, Deschatelets P, Francois C, Bliss C, Staurenghi G, Monés J, Singh RP, Ribeiro R, Wykoff CC. Pegcetacoplan for the treatment of geographic atrophy secondary to age-related macular degeneration (OAKS and DERBY): two multicentre, randomised, double-masked, sham-controlled, phase 3 trials. Lancet 2023; 402:1434-1448. [PMID: 37865470 DOI: 10.1016/s0140-6736(23)01520-9] [Citation(s) in RCA: 55] [Impact Index Per Article: 55.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Revised: 07/10/2023] [Accepted: 07/19/2023] [Indexed: 10/23/2023]
Abstract
BACKGROUND Geographic atrophy is a leading cause of progressive, irreversible vision loss. The objectives of OAKS and DERBY were to assess the efficacy and safety of pegcetacoplan compared with sham treatment in patients with geographic atrophy. METHODS OAKS and DERBY were two 24-month, multicentre, randomised, double-masked, sham-controlled, phase 3 studies, in which patients aged 60 years and older with geographic atrophy secondary to age-related macular degeneration were enrolled at 110 clinical sites and 122 clinical sites worldwide, respectively. Patients were randomly assigned (2:2:1:1) by central web-based randomisation system to intravitreal 15 mg per 0·1 mL pegcetacoplan monthly or every other month, or sham monthly or every other month using stratified permuted block randomisation (stratified by geographic atrophy lesion area at screening, history or presence of active choroidal neovascularisation in the eye not under assessment, and block size of six). Study site staff, patients, reading centre personnel, evaluating physicians, and the funder were masked to group assignment. Sham groups were pooled for the analyses. The primary endpoint was the change from baseline to month 12 in the total area of geographic atrophy lesions in the study eye based on fundus autofluorescence imaging, in the modified intention-to-treat population (ie, all patients who received one or more injections of pegcetacoplan or sham and had a baseline and at least one post-baseline value of lesion area). Key secondary endpoints (measured at 24 months) were change in monocular maximum reading speed of the study eye, change from baseline in mean functional reading independence index score, change from baseline in normal luminance best-corrected visual acuity score, and change from baseline in the mean threshold sensitivity of all points in the study eye by mesopic microperimetry (OAKS only). Safety analyses included patients who were randomly assigned and received at least one injection of pegcetacoplan or sham. The now completed studies are registered with ClinicalTrials.gov, NCT03525613 (OAKS) and NCT03525600 (DERBY). FINDINGS Between Aug 30, 2018, and July 3, 2020, 1258 patients were enrolled in OAKS and DERBY. The modified intention-to-treat populations comprised 614 (96%) of 637 patients in OAKS (202 receiving pegcetacoplan monthly, 205 pegcetacoplan every other month, and 207 sham) and 597 (96%) of 621 patients in DERBY (201 receiving pegcetacoplan monthly, 201 pegcetacoplan every other month, and 195 sham). In OAKS, pegcetacoplan monthly and pegcetacoplan every other month significantly slowed geographic atrophy lesion growth by 21% (absolute difference in least-squares mean -0·41 mm2, 95% CI -0·64 to -0·18; p=0·0004) and 16% (-0·32 mm2, -0·54 to -0·09; p=0·0055), respectively, compared with sham at 12 months. In DERBY, pegcetacoplan monthly and pegcetacoplan every other month slowed geographic atrophy lesion growth, although it did not reach significance, by 12% (-0·23 mm2, -0·47 to 0·01; p=0·062) and 11% (-0·21 mm2, -0·44 to 0·03; p=0·085), respectively, compared with sham at 12 months. At 24 months, pegcetacoplan monthly and pegcetacoplan every other month slowed geographic atrophy lesion growth by 22% (-0·90 mm2, -1·30 to -0·50; p<0·0001) and 18% (-0·74 mm2, -1·13 to -0·36; p=0·0002) in OAKS, and by 19% (-0·75 mm2, -1·15 to -0·34; p=0·0004) and 16% (-0·63 mm2, -1·05 to -0·22; p=0·0030) in DERBY, respectively, compared with sham. There were no differences in key secondary visual function endpoints at 24 months. Serious ocular treatment-emergent adverse events were reported in five (2%) of 213, four (2%) of 212, and one (<1%) of 211 patients in OAKS, and in four (2%) of 206, two (1%) of 208, and two (1%) of 206 patients in DERBY receiving pegcetacoplan monthly, pegcetacoplan every other month, and sham, respectively, at 24 months. New-onset exudative age-related macular degeneration was reported in 24 (11%), 16 (8%), and four (2%) patients in OAKS, and in 27 (13%), 12 (6%), and nine (4%) patients in DERBY receiving pegcetacoplan monthly, pegcetacoplan every other month, and sham, respectively, at 24 months. INTERPRETATION Pegcetacoplan, the first treatment approved by the US Food and Drug Administration for geographic atrophy, slowed geographic atrophy lesion growth with an acceptable safety profile. FUNDING Apellis Pharmaceuticals.
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Affiliation(s)
| | - Eleonora M Lad
- Department of Ophthalmology, Duke University Medical Center, Durham, NC, USA
| | - Frank G Holz
- Department of Ophthalmology, University of Bonn, Bonn, Germany
| | | | - Robyn H Guymer
- Centre for Eye Research Australia, Royal Victorian Eye and Ear Hospital, East Melbourne, VIC, Australia
| | - David Boyer
- Retina Vitreous Associates Medical Group, Los Angeles, CA, USA
| | | | | | - Jean-Francois Korobelnik
- Service d'Ophtalmologie, Centre Hospitalier Universitaire de Bordeaux, Bordeaux, France; Ophthalmology Department, University of Bordeaux, Bordeaux, France
| | - Jason S Slakter
- Department of Ophthalmology, New York University, New York, NY, USA
| | | | | | - Ian Pearce
- Department of Ophthalmology, Royal Liverpool University Hospital, Liverpool, UK
| | | | | | - Allen Hu
- Cumberland Valley Retina Consultants, Hagerstown, MD, USA
| | - David R Lally
- New England Retina Consultants, Springfield, MA, USA
| | | | | | | | - Giovanni Staurenghi
- Department of Biomedical and Clinical Science, Ospedale Luigi Sacco University of Milan, Milan, Italy
| | - Jordi Monés
- Institut de la Màcula, Centro Médico Teknon, Barcelona, Spain; Barcelona Macula Foundation: Research for Vision, Barcelona, Spain
| | - Rishi P Singh
- Center for Ophthalmic Bioinformatics, Cleveland Clinic, Cleveland, OH, USA
| | | | - Charles C Wykoff
- Retina Consultants of Texas, Houston, TX, USA; Blanton Eye Institute, Houston, TX, USA; Houston Methodist Hospital, Houston, TX, USA.
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14
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Künzel SH, Broadbent E, Möller PT, Lindner M, Goerdt L, Czauderna J, Schmitz-Valckenberg S, Holz FG, Pfau M, Fleckenstein M. Impact of lesion location and functional parameters on vision-related quality of life in geographic atrophy secondary to AMD. MEDRXIV : THE PREPRINT SERVER FOR HEALTH SCIENCES 2023:2023.09.22.23295946. [PMID: 37790350 PMCID: PMC10543058 DOI: 10.1101/2023.09.22.23295946] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/05/2023]
Abstract
Background/Aims The primary objective was to determine how structural and functional parameters influence the vision-related quality of life (VRQoL) in patients with geographic atrophy (GA) secondary to age-related macular degeneration (AMD). Methods This prospective, non-interventional, natural-history 'Directional Spread in Geographic-Atrophy' study was conducted at the University Eye Hospital in Bonn, enrolling 82 patients with bilateral GA. Parameters such as GA location (assessed by the Early Treatment Diabetic Retinopathy Study grid), best-corrected visual acuity (BCVA), low-luminance visual acuity (LLVA), reading acuity, and speed were examined. The association between these parameters and VRQoL, as gauged using the National Eye Institute Visual Function Questionnaire 25 (NEI VFQ-25), was analyzed through least absolute shrinkage and selection operator with linear mixed-effects models. Results The average total GA area observed was 2.9 ± 1.2 mm2 (better eye) and 3.1 ± 1.3 mm2 (worse eye). The VRQoL scores for distance and near activities were most associated with the inner lower and inner left subfields of the better eye. For foveal-sparing patients, the LLVA of the better eye was the predominant determinate impacting all VRQoL scales. Conclusion GA location, specifically the inner lower and inner left subfields of the better eye, has a notable effect on VRQoL in GA patients. LLVA stands out as especially vital in foveal-sparing patients, underscoring the importance for clinicians to incorporate considerations of GA location and functional parameters into their risk-benefit assessments for emerging treatments.
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Affiliation(s)
| | - Eliza Broadbent
- Department of Ophthalmology & Visual Sciences, John A. Moran Eye Center, University of Utah, 65 North Mario Capecchi Drive, Salt Lake City, 84312, UT, United States
| | | | - Moritz Lindner
- Institute of Physiology and Pathophysiology, Department of Neurophysiology, Philipps University, Deutschhausstr. 1-2, Marburg 35037, Germany
- Nuffield Laboratory of Ophthalmology, Sleep and Circadian Neuroscience Institute, Nuffield Department of Clinical Neurosciences, University of Oxford, South Parks Road, Oxford OX1 3QU, UK
| | - Lukas Goerdt
- Department of Ophthalmology, University of Bonn, Bonn, Germany
| | | | - Steffen Schmitz-Valckenberg
- Department of Ophthalmology, University of Bonn, Bonn, Germany
- Department of Ophthalmology & Visual Sciences, John A. Moran Eye Center, University of Utah, 65 North Mario Capecchi Drive, Salt Lake City, 84312, UT, United States
| | - Frank G Holz
- Department of Ophthalmology, University of Bonn, Bonn, Germany
| | - Maximilian Pfau
- Institute of Molecular and Clinical Ophthalmology Basel, Basel, Switzerland
| | - Monika Fleckenstein
- Department of Ophthalmology & Visual Sciences, John A. Moran Eye Center, University of Utah, 65 North Mario Capecchi Drive, Salt Lake City, 84312, UT, United States
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15
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Longley V, Woodward-Nutt K, Turton AJ, Stocking K, Checketts M, Bamford A, Douglass E, Taylor J, Woodley J, Moule P, Vail A, Bowen A. A study of prisms and therapy in attention loss after stroke (SPATIAL): A feasibility randomised controlled trial. Clin Rehabil 2023; 37:381-393. [PMID: 36285484 PMCID: PMC9912302 DOI: 10.1177/02692155221134060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
OBJECTIVE Investigate feasibility and acceptability of prism adaptation training for people with inattention (spatial neglect), early after stroke, during usual care. DESIGN Phase II feasibility randomised controlled trial with 3:1 stratified allocation to standard occupational therapy with or without intervention, and nested process evaluation. SETTING Ten hospital sites providing in-patient stroke services. PARTICIPANTS Screened positive for inattention more than one-week post-stroke; informal carers. Occupational therapists participated in qualitative interviews. INTERVENTION Adjunctive prism adaptation training at the start of standard occupational therapy sessions for three weeks. MAIN MEASURES Feasibility measures included recruitment and retention rates, intervention fidelity and attrition. Outcomes collected at baseline, 3 weeks and 12 weeks tested measures including Nottingham Extended Activities of Daily Living Scale. Acceptability was explored through qualitative interviews and structured questions. RESULTS Eighty (31%) patients were eligible, 57 (71%) consented, 54 randomised (40:13, +1 exclusion) and 39 (74%) completed 12-week outcomes. Treatment fidelity was good: participants received median eight intervention sessions (IQR: 5, 12) lasting 4.7 min (IQR: 4.1, 5.0). All six serious adverse events were unrelated. There was no signal that patients allocated to intervention did better than controls. Twenty five of 35 recruited carers provided outcomes with excellent data completeness. Therapists, patients and carers found prism adaptation training acceptable. CONCLUSIONS It is feasible and acceptable to conduct a high-quality definitive trial of prism adaptation training within occupational therapy early after stroke in usual care setting, but difficult to justify given no sign of benefit over standard occupational therapy. CLINICAL TRIAL REGISTRATION https://www.isrctn.com/ Ref ISRCTN88395268.
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Affiliation(s)
- Verity Longley
- Faculty of Health and Education, Manchester Metropolitan
University, Manchester, UK
- Verity Longley, Faculty of Health and
Education, Manchester Metropolitan University, Manchester, UK.
| | - Kate Woodward-Nutt
- Geoffrey Jefferson Brain Research Centre, The Manchester Academic
Health Science Centre, Northern Care Alliance & University of Manchester,
Manchester, UK
| | - Ailie J. Turton
- School for Health and Social Wellbeing, University of the West of
England, Bristol, UK
| | - Katie Stocking
- Centre for Biostatistics, The Manchester Academic Health Science
Centre, Northern Care Alliance & University of Manchester, Manchester, UK
| | - Matthew Checketts
- Geoffrey Jefferson Brain Research Centre, The Manchester Academic
Health Science Centre, Northern Care Alliance & University of Manchester,
Manchester, UK
| | - Ann Bamford
- Geoffrey Jefferson Brain Research Centre, The Manchester Academic
Health Science Centre, Northern Care Alliance & University of Manchester,
Manchester, UK
| | - Emma Douglass
- School for Health and Social Wellbeing, University of the West of
England, Bristol, UK
| | - Julie Taylor
- Dorothy House Hospice Care, Bradford-on-Avon, UK
| | - Julie Woodley
- School for Health and Social Wellbeing, University of the West of
England, Bristol, UK
| | - Pam Moule
- School for Health and Social Wellbeing, University of the West of
England, Bristol, UK
| | - Andy Vail
- Centre for Biostatistics, The Manchester Academic Health Science
Centre, Northern Care Alliance & University of Manchester, Manchester, UK
| | - Audrey Bowen
- Geoffrey Jefferson Brain Research Centre, The Manchester Academic
Health Science Centre, Northern Care Alliance & University of Manchester,
Manchester, UK
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16
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Ntonti P, Mitsi C, Chatzimichael E, Panagiotopoulou EK, Bakirtzis M, Konstantinidis A, Labiris G. A systematic review of reading tests. Int J Ophthalmol 2023; 16:121-127. [PMID: 36659955 PMCID: PMC9815988 DOI: 10.18240/ijo.2023.01.18] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2022] [Accepted: 10/27/2022] [Indexed: 12/29/2022] Open
Abstract
Adequate near and intermediate visual capacity is important in performing everyday tasks, especially after the introduction of smartphones and computers in our professional and recreational activities. Primary objective of this study was to review all available reading tests both conventional and digital and explore their integrated characteristics. A systematic review of the recent literature regarding reading charts was performed based on the PubMed, Google Scholar, and Springer databases between February and March 2021. Data from 11 descriptive and 24 comparative studies were included in the present systematic review. Clinical settings are still dominated by conventional printed reading charts; however, the most prevalent of them (i.e., Jaeger type charts) are not validated. Reliable reading capacity assessment is done only by those that comply with the International Council of Ophthalmology (ICO) recommendations. Digital reading tests are gaining popularity both in clinical and research settings and are differentiated in standard computer-based applications that require installation either in a computer or a tablet (e.g., Advanced VISION Test and web-based ones e.g., Democritus Digital Acuity Reading Test requires no installation). It is evident that validated digital tests will prevail in future clinical or research settings and it is upon ophthalmologists to select the one most compatible with their examination routine.
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17
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Gracheva MA, Kazakova AA. [Visual acuity charts in the Russian Empire, the USSR and modern Russia]. Vestn Oftalmol 2023; 139:126-139. [PMID: 37379119 DOI: 10.17116/oftalma2023139031126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/30/2023]
Abstract
Visual acuity is the quantitative parameter of the visual system characterizing its functional spatial resolution. Special test charts are commonly used for visual acuity assessment. The development of foreign tests for visual acuity is comprehensively covered in the literature, while the history of improving visual acuity charts in modern Russia, the USSR, and in the territory of the Russian Empire is only considered fragmentarily. In particular, there are almost no mentions of D.A. Sivtsev's work on proper letter-signs selection, and of A.A. Kryukov's tests. The purpose of this article is to review the history of developing visual acuity assessment methods in the Russian Empire, the USSR and modern Russia. One of the first sets of tests for visual acuity assessment available in the Russian Empire was developed by A.A. Kryukov; it was republished several times, but some criticism of the test can be encountered in the literature of that period. Subsequently, a task of developing a more accurate method was presented, which was implemented in the form of several editions of the visual acuity charts by D.A. Sivtsev and S.S. Golovin. The authors put a lot of effort into selecting the letters for the most reliable results of visual acuity assessment, excluded some unsuccessful characters (Cyrillic letters 'Ж' and 'Ю') and changed the size levels of the chart (the lines corresponding to the visual acuity levels of 1.25 and 1.5 were substituted by 1.5 and 2.0). Around the same period, A. Holina's chart appeared in print, but due to its poor structure the chart did not gain popularity, although it had a number of advantages. The review also considers some modern tests: the RORBA chart (named after the authors Rosenbaum, Ovechkin, Roslyakov, Bershanskiy, Aizenshtat), the vanishing optotypes by S.A. Koskin et al., the three-bar optotypes by the Institute for Information Transmission Problems (IITP), and the "Quartet" optotypes. Despite a large number of options, the search for the best method of measuring visual acuity for various medical and scientific tasks continues.
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Affiliation(s)
- M A Gracheva
- A.A. Kharkevich Institute for Information Transmission Problems of the Russian Academy of Sciences, Moscow, Russia
| | - A A Kazakova
- A.A. Kharkevich Institute for Information Transmission Problems of the Russian Academy of Sciences, Moscow, Russia
- State Scientific Center of Russian Federation - Institute of Bio-medical Problems of the Russian Academy of Sciences, Moscow, Russia
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18
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Daxer B, Radner W, Radner M, Benesch T, Ettl A. Towards a standardisation of reading charts: Font effects on reading performance-Times New Roman with serifs versus the sans serif font Helvetica. Ophthalmic Physiol Opt 2022; 42:1180-1186. [PMID: 35972034 PMCID: PMC9804255 DOI: 10.1111/opo.13039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2022] [Revised: 07/11/2022] [Accepted: 07/11/2022] [Indexed: 01/05/2023]
Abstract
PURPOSE The purpose was to compare systematically the legibility of a font without serifs (Helvetica) and one with serifs (Times New Roman). METHODS Three paragraphs that were equal in the number of words, syllables, characters, difficulty and reading length were printed at equal size, with equal spacing between the lines and equal layout (paperback style), in either the sans serif typeface Helvetica Neue T1 55 Roman (Adobe) or the serif typeface Times New Roman PS Roman (Adobe). They were also printed in newspaper format in the serif font. The paragraphs were presented in random order (Latin square design) to 36 participants between 18 and 38 years of age (wearing their best-corrected visual acuity). Reading duration was measured with a stopwatch. Reading time, reading speed and the number of reading errors were compared. RESULTS For the paperback layout, no significant difference in reading time (p = 0.50) or reading speed (p = 0.56) was found between the two fonts. The correlation between the two fonts was high for both reading time and speed (r = 0.93). The mean number of reading errors was the same (0.31 ± 0.58 errors/text) for both fonts. There was a significant difference in reading time and speed between the paperback and the newspaper layout. CONCLUSION The legibility of Helvetica and Times New Roman is similar when investigated under equivalent conditions. Thus, these two font types can be used as interchangeable standard typefaces.
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Affiliation(s)
- Barbara Daxer
- Karl Landsteiner University of Health SciencesKarl Landsteiner Medical UniversityKremsAustria,Department of OphthalmologyUniversity Hospital St. PöltenSankt PöltenAustria
| | - Wolfgang Radner
- Karl Landsteiner University of Health SciencesKarl Landsteiner Medical UniversityKremsAustria,Department of OphthalmologyUniversity Hospital St. PöltenSankt PöltenAustria,Austrian Academy of OphthalmologyViennaAustria
| | - Michael Radner
- Karl Landsteiner University of Health SciencesKarl Landsteiner Medical UniversityKremsAustria,Department of OphthalmologyUniversity Hospital St. PöltenSankt PöltenAustria,Austrian Academy of OphthalmologyViennaAustria
| | | | - Armin Ettl
- Karl Landsteiner University of Health SciencesKarl Landsteiner Medical UniversityKremsAustria,Department of OphthalmologyUniversity Hospital St. PöltenSankt PöltenAustria
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19
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Scott JM, Mayo AM. Successful Aging in Assisted Living: The Importance of Near Visual Acuity. J Gerontol Nurs 2022; 48:8-14. [PMID: 36007216 DOI: 10.3928/00989134-20220805-01] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Successful aging among independent community-dwelling older adults and those in residential settings is paramount to aging in place. The purpose of the current study was to explore how sensory, cognitive, and functional impairments affect successful aging in assisted living (AL) settings. Vision compromise was noted for near visual acuity (NVA) (14.3%) and distance visual acuity (11.9%). More than one third (34.1%) of participants screened positive for compromised cognition, functional impairment was present in 48.9%, and successful aging was present in 55.7%. NVA and functional status were related to successful aging (r = 0.328, p = 0.004; r = 0.341, p = 0.002, respectively), and explained 9.3% of the variance in successful aging (F[2, 75] = 3.83, p = 0.026). Having a lower NVA score (β = -0.277, p = 0.021) uniquely affected the successful aging score. Interventions supporting AL residents' sensory and cognitive health should be a priority to improve successful aging. [Journal of Gerontological Nursing, 48(9), 8-14.].
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20
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Radner W, Radner M, Daxer B, Ettl A. Possible limits of calibrating reading charts with the Landolt ring: a microscopic study. EYE AND VISION 2022; 9:31. [PMID: 35965343 PMCID: PMC9377069 DOI: 10.1186/s40662-022-00302-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Accepted: 07/25/2022] [Indexed: 11/12/2022]
Abstract
Purpose To evaluate microscopically whether the print quality and accuracy of sizing of Landolt ring near vision charts are adequate for the calibration of reading charts. Methods Near vision charts with Landolt rings from Oculus GmbH (C-Test; Wetzlar, Germany), Precision Vision (Woodstock, IL) and the RADNER Charts were examined, as well as custom-made Landolt rings optimized for print quality. Microscopic investigations and measurements were performed by using a Huvitz HSZ 600 stereomicroscope (Nikon NIS Elements software) to evaluate the height of the Landolt rings, the thickness of the lines, and the width of the openings. The deviations from the mathematically correct values, which were calculated as given in the EN/ISO 8596 and by the International Council of Ophthalmology (ICO), were analyzed (calculated for a test distance of 40 cm). Results All the near vision charts showed notable deficiencies in print quality and aberrations from the nominal values in the height, thickness of the lines, and width of the openings. The openings were too narrow, whereas the height and thickness of the lines were larger than the nominal values. Even the openings of Landolt rings optimized for print quality were not always within an acceptable 5% tolerance and need further improvement. Conclusion This study reports inaccuracies in the heights, thicknesses of the lines, and widths of the openings of Landolt rings in all the near vision charts investigated. The extent of these inaccuracies excludes such near vision charts as reference tests for the calibration of reading charts. The x-height in relation to the visual angle still seems to be the most reliable method for standardizing the print sizes for reading charts.
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21
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Almaliotis D, Athanasopoulos GP, Almpanidou S, Papadopoulou EP, Karampatakis V. Design and Validation of a New Smartphone-Based Reading Speed App (GDRS-Test) for the Greek Speaking Population. CLINICAL OPTOMETRY 2022; 14:111-124. [PMID: 35942276 PMCID: PMC9356703 DOI: 10.2147/opto.s370215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Accepted: 07/17/2022] [Indexed: 06/15/2023]
Abstract
PURPOSE To present a novel smartphone-based application (GDRS-test, Greek Digital Reading Speed - test) for the assessment of reading speed, to evaluate, whether this test could be easily and reliably used by patients with visual impairment and normal individuals serving as an adjunctive tool for their visual examination. PATIENTS AND METHODS One hundred and five visually impaired and 32 normal eyes were examined. Depending on existing active ocular pathology, patients were divided into a non-macular and a macular group, We examined the reading performance for continuous text (MNREAD chart) and random unrelated words of the new smartphone-based reading speed app, monocularly. The patients' best-corrected visual acuity ranged from 1.3 to 0.2 logMAR. Examinees were asked to read aloud (at a 40 cm distance) a series of 30 random two-syllable and then 30 three-syllable Greek words, without semantic connection. Reading speed was measured as correct words per minute for critical print size. The individuals were examined twice within 2 weeks for test-retest reliability. Correlations and comparisons concerning each group adjusted for age and visual acuity were performed. RESULTS There was moderate correlation between MNREAD and 2SYL SPEED (Reading speed for 2-syllable) (Pearson's rho = 0.589, p < 0.001) and 3SYL SPEED (Reading speed for 3-syllable) (Pearson's rho = 0.617, p < 0.001) for healthy individuals. The mean 2SYL SPEED and 3SYL SPEED for Individuals of the maculopathies group or non-maculopathies group were significantly lower compared to normal individuals adjusted for age and visual acuity [B (95% CI): -93.077 (-104.165, -81.98), p < 0.001] and [B (95% CI): -92.254 (-104.196, -80.312), p < 0.001], respectively. The test-retest analysis showed a good agreement for patients and healthy individuals. CONCLUSION The novel-reading speed application for the Greek-speaking population was found to accurately detect differences between patients with visual impairment and healthy individuals. It was designed and constructed with the intention to ease and improve the ophthalmic examination allowing individuals to self-evaluate reading speed by transmitting the result to their physician.
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Affiliation(s)
- Diamantis Almaliotis
- Laboratory of Experimental Ophthalmology, School of Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Georgios P Athanasopoulos
- Laboratory of Experimental Ophthalmology, School of Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Stavroula Almpanidou
- Laboratory of Experimental Ophthalmology, School of Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Eleni P Papadopoulou
- Laboratory of Experimental Ophthalmology, School of Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Vasileios Karampatakis
- Laboratory of Experimental Ophthalmology, School of Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
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22
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Font effects on reading parameters: comparing Radner Reading Charts printed in Helvetica and Times Roman. Graefes Arch Clin Exp Ophthalmol 2022; 260:3387-3394. [PMID: 35471739 PMCID: PMC9477910 DOI: 10.1007/s00417-022-05665-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Revised: 03/24/2022] [Accepted: 04/08/2022] [Indexed: 11/29/2022] Open
Abstract
Purpose To investigate the effect of font choice on reading parameters by using the RADNER Reading Charts printed in two fonts (Helvetica vs. Times Roman) equalized in terms of x-height. Methods This is a cross-sectional study of 40 participants with healthy eyes (18 to 60 years of age; mean: 42.13 ± 12.28 years). Reading performance was evaluated binocularly with RADNER Reading Charts printed in either Helvetica Neue (T1) Roman sans serif (Adobe) or Times New Roman PS Roman serif (Adobe). The test distance was 40 cm. Reading charts were presented in random order. Reading acuity (RA), mean reading speed of all sentences read (MEAN-ALL RS), mean reading speed from 0.8 logRAD to 0.3 logRAD (MEAN-RS), maximum reading speed (MAX-RS), and critical print size (CPS) were compared. Results The RA values obtained for the Helvetica and Times Roman fonts (in full logarithmic units of 0.1 logRAD) did not differ between the two fonts (mean for both fonts: − 0.128 ± 0.064 logRAD; 95% CI for both: − 0.148; − 0.107 logRAD). The differences in all other reading parameters between the two fonts were small and not statistically significant. The analyses revealed narrow confidence intervals and good coefficients of reliability. Except for the CPS (r = 0.49) and RA (equal for Helvetica and Times Roman), the correlations for all parameters were high, ranging from r = 0.92 to r = 0.98. Conclusion The equivalent reading performance obtained with Helvetica and Times Roman (when equalized in x-height and layout) makes these font types interchangeable as standards for reading charts. ![]() Supplementary Information The online version contains supplementary material available at 10.1007/s00417-022-05665-y.
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23
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Massof RW. Patient-Reported Measures of the Effects of Vision Impairments and Low Vision Rehabilitation on Functioning in Daily Life. Annu Rev Vis Sci 2022; 8:217-238. [PMID: 35417256 DOI: 10.1146/annurev-vision-100620-022121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
The quantification of vision impairments dates to the mid-nineteenth century with standardization of visual acuity and visual field measures in the eye clinic. Attempts to quantify the impact of vision impairments on patients' lives did not receive clinical attention until the close of the twentieth century. Although formal psychometric theories and measurement instruments were well developed and commonplace in educational testing, as well as in various areas in psychology and rehabilitation medicine, the late start applying them to clinical vision research created a vacuum that invited poorly developed and poorly functioning instruments and analytic methods. Although this research is still burdened with legacy instruments, mandates by regulatory agencies to include the patients' perspectives and preferences in the evaluation of clinical outcomes have stimulated the development and validation of self-report instruments grounded in modern psychometric theory and methods. Here I review the progress and accomplishments of applying modern psychometrics to clinical vision research. Expected final online publication date for the Annual Review of Vision Science, Volume 8 is September 2022. Please see http://www.annualreviews.org/page/journal/pubdates for revised estimates.
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Affiliation(s)
- Robert W Massof
- Lions Vision Research and Rehabilitation Center, Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA;
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24
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Rowe FJ, Hepworth LR, Kirkham JJ. Development of core outcome sets and core outcome measures for central visual impairment, visual field loss and ocular motility disorders due to stroke: a Delphi and consensus study. BMJ Open 2022; 12:e056792. [PMID: 35304397 PMCID: PMC8935181 DOI: 10.1136/bmjopen-2021-056792] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
OBJECTIVES Reporting of research for stroke-related visual impairment is inconsistent. The aim of this study was to define three core outcome sets (COS) and related core outcome measurements (COM) for central visual impairment, visual field loss and ocular motility disorders in stroke research. DESIGN The consensus process consisted of an online three-round Delphi survey followed by a consensus meeting of key stakeholders. SETTING UK-wide survey. PARTICIPANTS Stakeholders included orthoptists, occupational therapists, ophthalmologists, stroke survivors and COS users such as researchers, journal editors and guideline developers. OUTCOME MEASURES For COS development, a list of potentially relevant visual outcomes was created after review of the literature and further grouped into outcome domains. For COM development, a list of potential instruments was created after review of the literature and quality appraised for reliability and validity. RESULTS COS-119 potential outcomes extracted from published literature. Similar assessment outcomes were grouped into 24 outcome domains. Delphi process included 123 participants in round 1, 65 round 2, 51 round 3. Twelve participants attended the consensus meeting with recommended outcome domains for central visual impairment (visual acuity, functional vision, quality of life), visual field loss (visual fields, functional vision, quality of life) and ocular motility disorders (eye alignment, eye movements, functional vision, quality of life). COM-52 test options extracted from the COS outcomes and grouped into 16 domains. Thirteen participants attended the COM consensus meeting. Recommended instruments for measurement of these outcomes include; Logarithm of the Minimal Angle of Resolution visual acuity, cover test, cardinal position eye movement assessments, peripheral visual field perimetry, Visual Function Questionnaire-25. CONCLUSIONS COS and COM are defined for vision research for stroke survivors. Their use has potential to reduce heterogeneity in routine clinical practice and improve standardisation and accuracy of vision assessment. Future research is required to evaluate the use of these COS and COM.
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Affiliation(s)
- Fiona J Rowe
- Institute of Population Health, University of Liverpool, Liverpool, UK
| | - Lauren R Hepworth
- Institute of Population Health, University of Liverpool, Liverpool, UK
| | - Jamie J Kirkham
- Centre for Biostatistics, Manchester University, Manchester Academic Health Science Centre, Manchester, UK
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25
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Maeni YA, Paterson KB, Maltby J, McGowan VA, Hutchinson CV. Comparison of Logarithmic Reading Charts for Visual Assessment in Normally Sighted Participants. Optom Vis Sci 2022; 99:292-297. [PMID: 35045563 DOI: 10.1097/opx.0000000000001865] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
SIGNIFICANCE Logarithmic reading charts provide standardized measures of reading performance. Here we show that existing charts provide equivalent assessments of visual aspects of reading that are in good agreement with traditional measures of visual acuity and seem uninfluenced by cognitive (linguistic) factors. PURPOSE The aims of this study were to (1) determine the equivalence of logarithmic charts of sentence and word reading, (2) evaluate the relationship between reading chart performance and more traditional measures of visual assessment, and (3) establish the influence of linguistic factors on reading chart performance. METHODS In a sample of 82 normally sighted participants, we determined performance on the reading measures (e.g., reading acuity, reading speed, critical print size) of the following logarithmic charts of sentence and word reading: The Colenbrander English Continuous Text Near Vision Card, Radner Reading Chart, Minnesota Reading Acuity Chart, and Smith-Kettlewell Reading Chart. In doing so, we compared performance on reading measures between charts and with performance on more traditional measures of visual assessment (uncrowded and crowded letter acuity, stereoacuity, accommodation) and cognitive measures of word knowledge and ability (Wechsler Adult Intelligence Scale Vocabulary Subtest, National Adult Reading Test). RESULTS Factor analysis confirmed that performance on the reading measures (reading acuity, reading speed, critical print size) was equivalent across charts. Reading test performance was also related to more traditional measures of vision, the most consistent of which were significant associations between reading acuity and acuity for single-letter optotypes. There were no significant associations between reading chart performance and cognitive measures of word knowledge and ability. CONCLUSIONS The findings presented here suggest that logarithmic charts composed of sentences and words represent an alternative to traditional letter acuity testing. This is particularly the case for measures of reading acuity.
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Affiliation(s)
| | - Kevin B Paterson
- Department of Neuroscience, Psychology and Behaviour, College of Life Sciences, University of Leicester, Leicester, United Kingdom
| | - John Maltby
- Department of Neuroscience, Psychology and Behaviour, College of Life Sciences, University of Leicester, Leicester, United Kingdom
| | - Victoria A McGowan
- Department of Neuroscience, Psychology and Behaviour, College of Life Sciences, University of Leicester, Leicester, United Kingdom
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26
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Garcin T, Gain P, Thuret G. Epiretinal large disc of blue-stained lyophilized amniotic membrane to treat complex macular holes: a 1-year follow-up. Acta Ophthalmol 2022; 100:e598-e608. [PMID: 33998147 DOI: 10.1111/aos.14909] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2021] [Revised: 04/11/2021] [Accepted: 04/22/2021] [Indexed: 01/22/2023]
Abstract
PURPOSE To report the long-term outcomes of large diameter epiretinal lyophilized amniotic membranes (lAMs) in recurrent or persistent macular holes (MHs) with or without rhegmatogenous retinal detachment (RRD), in a prospective interventional case series. METHODS Ten eyes of 10 patients underwent pars plana vitrectomy for MH-associated RRD (n = 5) or persistent MH without RRD (n = 5), in a university Hospital. A 3 or 4 mm diameter disc of lAM, stained with 0.06% trypan blue, was inserted with a catheter through a sclerotomy and positioned over the MH. Gas or silicone-oil tamponade was used. At 1 year, the main outcome was anatomic success defined as complete MH closure. Secondary outcomes were best corrected visual acuity (BCVA) recovery, changes in ellipsoid zone (EZ) and external limiting membrane (ELM) defects, complications. Mean follow-up was 13.8 ± 2.9 months (range, 12-18). RESULTS Mean baseline data were minimum and maximum diameters, respectively, 945 ± 330 and 1507 ± 717 μm; axial length 26.58 ± 3.38 mm; and number of prior surgeries 1.4 ± 0.96. At 1 year, anatomic success was achieved in eight eyes (80%), and two had reduced diameter of MH. All RRDs were reattached without recurrence. Mean logMAR BCVA improved from 1.92 ± 0.58 to 1.17 ± 0.57 (p < 0.001), with nine eyes (90%) achieving ≥0.3 logMAR improvement. Mean EZ and ELM defects decreased (p = 0.004, p = 0.003, respectively). Postoperative complications were RRD (n = 1) reattached by subsequent surgery, lAM slightly retracted under silicone (n = 1), foveal atrophy after early lAM displacement (n = 1). CONCLUSION A 1-year follow-up highlighted that epiretinal large discs of blue-stained lAM can help safely close refractory MHs, and provide satisfactory visual recovery.
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Affiliation(s)
- Thibaud Garcin
- Corneal Graft Biology, Engineering and Imaging Laboratory BiiGC EA2521 Federative Institute of Research in Sciences and Health Engineering Faculty of Medicine Jean Monnet University Saint‐Etienne France
- Ophthalmology Department University Hospital Saint‐Etienne France
| | - Philippe Gain
- Corneal Graft Biology, Engineering and Imaging Laboratory BiiGC EA2521 Federative Institute of Research in Sciences and Health Engineering Faculty of Medicine Jean Monnet University Saint‐Etienne France
- Ophthalmology Department University Hospital Saint‐Etienne France
| | - Gilles Thuret
- Corneal Graft Biology, Engineering and Imaging Laboratory BiiGC EA2521 Federative Institute of Research in Sciences and Health Engineering Faculty of Medicine Jean Monnet University Saint‐Etienne France
- Ophthalmology Department University Hospital Saint‐Etienne France
- Institut Universitaire de France Boulevard Saint‐Michel Paris France
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27
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Tripathi A, Agarwal R. An updated approach to low-vision assessment. JOURNAL OF CLINICAL OPHTHALMOLOGY AND RESEARCH 2022. [DOI: 10.4103/jcor.jcor_22_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022] Open
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28
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MACULAR ADD-ON INTRAOCULAR LENS SUCCESSFULLY RESTORES READING VISION IN EYES WITH END-STAGE DIABETIC MACULAR DISEASE. Retin Cases Brief Rep 2021; 15:760-766. [PMID: 31246887 DOI: 10.1097/icb.0000000000000885] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
PURPOSE To report the outcomes of macular add-on intraocular lens implantation in improving reading vision in patients with bilateral advanced diabetic maculopathy. METHODS In this retrospective study, a supplementary bifocal sulcus intraocular lens (Scharioth Macular Lens) was implanted in the better-seeing eye of five patients. Baseline-corrected distance vision, corrected near visual acuity, a preoperative simulation test, and multimodal imaging were collected. The primary outcome was the uncorrected near visual acuity at a working distance of 15 cm, at a 12-month follow-up. RESULTS Study patients included 3 cases of refractory subfoveal exudation and 2 cases of diabetic macular ischemia. A preoperative test to assess the potential gain in near vision showed an improvement of ≥2 paragraphs on the RADNER reading chart in all patients. At 12 months, median reading vision (corrected near visual acuity at 15 cm) significantly improved from 20/125 (range 20/50-20/200) preoperatively to uncorrected near visual acuity (at 15 cm) of 20/50 (range 20/40-20/80) (P = 0.042; Wilcoxon signed-ranks test). Distance vision remained unchanged in four patients. All patients were able to achieve the size of newsprint (20/50 Snellen equivalent), within the first 3 months. CONCLUSION The macular add-on intraocular lens improves reading vision in visually impaired patients due to end-stage diabetic macular disease.
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29
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Künzel SH, Lindner M, Sassen J, Möller PT, Goerdt L, Schmid M, Schmitz-Valckenberg S, Holz FG, Fleckenstein M, Pfau M. Association of Reading Performance in Geographic Atrophy Secondary to Age-Related Macular Degeneration With Visual Function and Structural Biomarkers. JAMA Ophthalmol 2021; 139:1191-1199. [PMID: 34591067 DOI: 10.1001/jamaophthalmol.2021.3826] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Importance As a disabling and frequent disease, geographic atrophy secondary to age-related macular degeneration (AMD) constitutes an important study subject. Emerging clinical trials require suitable end points. The characterization and validation of reading performance as a functional outcome parameter is warranted. Objective To prospectively evaluate reading performance in geographic atrophy and to assess its association with established visual function assessments and structural biomarkers. Design, Setting, and Participants The noninterventional, prospective natural history Directional Spread in Geographic Atrophy study included patients with geographic atrophy secondary to AMD who were recruited at the University Hospital in Bonn, Germany. Participants were enrolled from June 2013 to June 2016. Analysis began December 2019 and ended January 2021. Main Outcomes and Measures Reading acuity and reading speed were assessed using Radner charts. Longitudinal fundus autofluorescence and infrared reflectance images were semiautomatically annotated for geographic atrophy, followed by extraction of shape-descriptive variables. Linear mixed-effects models were applied to investigate the association of those variables with reading performance. Results A total of 150 eyes of 85 participants were included in this study (median [IQR] age, 77.9 [72.4-82.1] years; 51 women [60%]; 34 men [40%]). Reading performance was impaired with a median (IQR) monocular reading acuity of 0.9 (0.4-1.3) logarithm of the reading acuity determination and a reading speed of 52.8 (0-123) words per minute. In the multivariable cross-sectional analysis, best-corrected visual acuity, area of geographic atrophy in the central Early Treatment Diabetic Retinopathy Study (ETDRS) subfield, classification of noncenter vs center-involving geographic atrophy, and area of geographic atrophy in the inner-right ETDRS subfield showed strongest associations with reading acuity (cross-validated R2for reading acuity = 0.69). Regarding reading speed, the most relevant variables were best-corrected visual acuity, low-luminance visual acuity, area of geographic atrophy in the central ETDRS subfield, in the inner-right ETDRS subfield, and in the inner-upper ETDRS subfield (R2 for reading speed = 0.67). In the longitudinal analysis, a similar prediction accuracy for reading performance was determined (R2 for reading acuity = 0.73; R2 for reading speed = 0.70). Prediction accuracy did not improve when follow-up time was added as an independent variable. Binocular reading performance did not differ from reading performance in the better-seeing eye. Conclusions and Relevance The association of reading acuity and speed with visual functional and structural biomarkers supports the validity of reading performance as a meaningful end point in clinical trials. These findings suggest that measures in clinical and low-vision care for patients with geographic atrophy should focus primarily on the better-seeing eye.
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Affiliation(s)
| | - Moritz Lindner
- Nuffield Laboratory of Ophthalmology, Sleep and Circadian Neuroscience Institute, Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, United Kingdom.,Institute for Physiology and Pathophysiology, Department of Neurophysiology, Philipps-University Marburg, Marburg, Germany
| | - Josua Sassen
- Institute for Numerical Simulation, University of Bonn, Bonn, Germany
| | | | - Lukas Goerdt
- Department of Ophthalmology, University of Bonn, Bonn, Germany
| | - Matthias Schmid
- Institute for Medical Biometry, Informatics and Epidemiology, Medical Faculty, University of Bonn, Bonn, Germany
| | - Steffen Schmitz-Valckenberg
- Department of Ophthalmology, University of Bonn, Bonn, Germany.,John A. Moran Eye Center, University of Utah, Salt Lake City
| | - Frank G Holz
- Department of Ophthalmology, University of Bonn, Bonn, Germany
| | | | - Maximilian Pfau
- Department of Ophthalmology, University of Bonn, Bonn, Germany.,Ophthalmic Genetics & Visual Function Branch, National Eye Institute, National Institutes of Health, Bethesda, Maryland
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30
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Radner W, Maaijwee K, de Smet MD, Benesch T, Ettl A. Methodical bias, incorrect use of the RADNER Reading Charts and - avoiding misleading reporting in Visual Acuity Measurements Kortuem C, Marx T, Altpeter E, Trauzettel-Klosinski S, Kuester-Gruber S. Comparing reading speeds for reading standardized single sentences and paragraphs in patients with maculopathy. Ophthalmic Res. 2021;64(3):512-522. Ophthalmic Res 2021; 65:239-243. [PMID: 34614500 DOI: 10.1159/000520029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Accepted: 09/24/2021] [Indexed: 11/19/2022]
Affiliation(s)
- Wolfgang Radner
- Austrian Academy of Ophthalmology, Vienna, Austria
- Karl Landsteiner University of Health Sciences, Krems, Austria
- Department of Ophthalmology, University Hospital St. Pölten, St. Pölten, Austria
| | - Kristel Maaijwee
- Department of Ophthalmology, HagaZiekenhuis, The Hague, The Netherlands
| | - Marc D de Smet
- MIOS - Rétine et inflammation, Lausanne, Switzerland
- Department of Ophthalmology, University of Leiden, Leiden, The Netherlands
| | - Thomas Benesch
- Department of International Development, Vienna, Austria
| | - Armin Ettl
- Karl Landsteiner University of Health Sciences, Krems, Austria
- Department of Ophthalmology, University Hospital St. Pölten, St. Pölten, Austria
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31
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Farzaneh A, Riazi A, Falavarjani KG, Doostdar A, Kamali M, Sedaghat A, Khabazkhoob M. Evaluating Reading Performance in Different Preferred Retinal Loci in Persian-Speaking Patients with Age-Related Macular Degeneration. J Curr Ophthalmol 2021; 33:48-55. [PMID: 34084957 PMCID: PMC8102939 DOI: 10.4103/joco.joco_192_20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Revised: 06/26/2020] [Accepted: 08/20/2020] [Indexed: 11/04/2022] Open
Abstract
Purpose: To evaluate reading performance in different preferred retinal loci (PRLs) using a Persian version of a Minnesota Low Vision Reading (MNREAD) chart in Persian-speaking patients with age-related macular degeneration (AMD). Methods: In this cross-sectional study, 35 patients with AMD were assessed. The reading performance was investigated by the MNREAD chart without using low vision aids. The location of PRL was determined monocularly using an MP1 microperimeter (Nidek Technologies, Padua, Italy). The anatomical location of the fovea was determined using optical coherence tomography (OCT). Images were taken with the MP1 microperimeter, and Spectralis HRA-OCT device was processed using graphic software to determine the location of the PRL on the retina. Results: Thirty-five patients (51 eyes) with a mean age of 73.8 ± 7.7 years (range, 54–88 years) were assessed. Mean best corrected distance visual acuity (logMAR) was 0.65 ± 0.35 (range, 0.2–1.3). Mean levels of reading acuity (RA) (P = 0.009) and critical print size (CPS) (P = 0.015) were significantly different in different locations of PRL. Average scores of maximum reading speed (MRS) (P = 0.058) and reading accessibility index (ACC) (P = 0.058) were not statistically significant in different locations of PRL. There was a positive correlation between PRL-fovea distance and RA (P < 0.001, r = 0.591) and CPS (P < 0.001, r = 0.614). Significant negative correlations were observed between PRL-fovea distance and MRS (P < 0.001, r = −0.519) and ACC (P < 0.001, r = −0.545). Conclusions: This study provides evidence for differences in the reading performance of Persian-speaking patients with AMD in different PRL locations. The average scores of all reading indices obtained in the right-field PRL are lower than those in other areas and are highly correlated with the PRL-fovea distance.
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Affiliation(s)
- Abdollah Farzaneh
- Department of Optometry, Rehabilitation Research Center, School of Rehabilitation Sciences, Iran University of Medical Sciences, Tehran, Iran
| | - Abbas Riazi
- Department of Optometry, Rehabilitation Research Center, School of Rehabilitation Sciences, Iran University of Medical Sciences, Tehran, Iran
| | - Khalil Ghasemi Falavarjani
- Eye Research Center, The Five Senses Institute, Rassoul Akram Hospital, Iran University of Medical Sciences, Tehran, Iran
| | - Asgar Doostdar
- Department of Optometry, Rehabilitation Research Center, School of Rehabilitation Sciences, Iran University of Medical Sciences, Tehran, Iran
| | - Mohammad Kamali
- Department of Physiotherapy, Rehabilitation Research Center, School of Rehabilitation Sciences, Iran University of Medical Sciences, Tehran, Iran
| | - Ahad Sedaghat
- Eye Research Center, The Five Senses Institute, Rassoul Akram Hospital, Iran University of Medical Sciences, Tehran, Iran
| | - Mehdi Khabazkhoob
- Department of Basic Sciences, School of Nursing and Midwifery, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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32
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Tuohy GP, Megaw R. A Systematic Review and Meta-Analyses of Interventional Clinical Trial Studies for Gene Therapies for the Inherited Retinal Degenerations (IRDs). Biomolecules 2021; 11:760. [PMID: 34069580 PMCID: PMC8160708 DOI: 10.3390/biom11050760] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Revised: 05/04/2021] [Accepted: 05/08/2021] [Indexed: 12/13/2022] Open
Abstract
IRDs are one of the leading causes of visual loss in children and young adults. Mutations in over 271 genes lead to retinal dysfunction, degeneration and sight loss. Though no cure exists, gene augmentation therapy has brought hope to the field. This systematic review sought to assess the efficacy of available gene therapy treatments for IRDs. Databases and public resources were searched for randomised controlled trials (RCTs) and non-randomised studies of interventions (NRSIs). Standard methodological procedures were used, including a risk-of-bias assessment. One RCT and five NRSIs were assessed, all for adeno-associated virus two (AAV2)-mediated treatment of RPE-specific 65 kDa (RPE65)-associated LCA (Leber congenital amaurosis). Five outcomes were reported for meta-analyses. Modest improvements in visual acuity, ambulatory navigation/mobility testing or central retinal thickness was observed. There was significant improvement in red and blue light full-field stimulus testing (FST) (red light risk ratio of 1.89, treated v control, p = 0.04; and blue light risk ratio of 2.01, treated v control, p = 0.001). Study design assessment using a ROBIN-I tool (Cochrane Library) showed risk-of-bias judgement to be "low/moderate", whilst there were "some concerns" for the RCT using a RoB-2 tool (Cochrane Library). Although comparison by meta-analysis is compromised by, amongst other issues, a variable amount of vector delivered in each trial, FST improvements demonstrate a proof-of-principle for treating IRDs with gene therapy.
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Affiliation(s)
- Gearóid P. Tuohy
- MRC Human Genetics Unit, University of Edinburgh, Western General Hospital, Edinburgh EH4 2XU, UK;
| | - Roly Megaw
- MRC Human Genetics Unit, University of Edinburgh, Western General Hospital, Edinburgh EH4 2XU, UK;
- Princess Alexandra Eye Pavilion, NHS Lothian, Edinburgh EH3 9HA, UK
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33
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Brussee T, Alagahgi B, Nispen RMA, Rens GHMB. Measurement properties of reading tests in subjects with maculopathy. Acta Ophthalmol 2021; 99:275-287. [PMID: 32833321 DOI: 10.1111/aos.14574] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Accepted: 07/02/2020] [Indexed: 11/28/2022]
Abstract
PURPOSE A reliable reading test provides a standardized measure of the visual component of reading performance. This study evaluated reproducibility, agreement and feasibility of five Dutch language continuous text reading tests used in clinical practice and research in visually impaired participants. METHODS In 42 participants with macular pathologies (mean age 77 years), the Colenbrander Reading Card (Colenbrander), International Reading Speed Texts (IReST), Laboratory of Experimental Ophthalmology (LEO) charts, 'de Nederlanders' (NED) and the Radner Reading Charts (Radner) were evaluated. The coefficient of repeatability was calculated for different reading parameters, and agreement between the reading tests was determined. RESULTS Between the reading tests, the differences found in repeatability for reading performance were mainly within the limit of one line (0.1 logMAR). Exceptions were the inter-session repeatability for critical print size: Colenbrander (0.35 logMAR), LEO (0.34), Radner (0.23). The highest agreement was found between the LEO and Radner; Reading acuity bias 0.03 logMAR (SD 0.10), CPS 0.03 (0.12). CONCLUSION This study shows that reading performance results obtained with reading tests are not always reliable and reading parameters could not always be properly assessed in participants with maculopathies. Therefore, choices regarding which reading test to use especially for research purposes should be based on both the feasibility and reliability of the reading test. The NED (a historical test) was the least feasible, and it is recommend that this test is no longer used. To allow standardized and comparable analysis of reading performance a highly standardized reading test, like the Radner is recommended.
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Affiliation(s)
- Tamara Brussee
- Ophthalmology Amsterdam Public Health Research Institute Amsterdam UMC Vrije Universiteit Amsterdam Amsterdam The Netherlands
- Ophthalmology Elkerliek Hospital Helmond The Netherlands
| | - Basel Alagahgi
- Ophthalmology Amsterdam Public Health Research Institute Amsterdam UMC Vrije Universiteit Amsterdam Amsterdam The Netherlands
| | - Ruth M. A. Nispen
- Ophthalmology Amsterdam Public Health Research Institute Amsterdam UMC Vrije Universiteit Amsterdam Amsterdam The Netherlands
| | - Ger H. M. B. Rens
- Ophthalmology Amsterdam Public Health Research Institute Amsterdam UMC Vrije Universiteit Amsterdam Amsterdam The Netherlands
- Ophthalmology Elkerliek Hospital Helmond The Netherlands
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34
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Richdale K, Cox I, Kollbaum P, Bullimore MA, Bakaraju RC, Gifford P, Plainis S, McKenney C, Newman S, Tomiyama ES, Morgan PB. CLEAR – Contact lens optics. Cont Lens Anterior Eye 2021; 44:220-239. [DOI: 10.1016/j.clae.2021.02.005] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Accepted: 02/01/2021] [Indexed: 12/27/2022]
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Benozzi G, Cortina ME, Gimeno E, Vantesone DL, Solas AE, Lorda GM, Facal S, Leiro J, Orman B. A multicentric study of pharmacological treatment for presbyopia. Graefes Arch Clin Exp Ophthalmol 2021; 259:2441-2450. [PMID: 33704563 DOI: 10.1007/s00417-021-05138-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Revised: 02/22/2021] [Accepted: 03/02/2021] [Indexed: 11/29/2022] Open
Abstract
PURPOSE To evaluate the safety, efficacy, and patient satisfaction with a pharmacological treatment of presbyopia performed with the Benozzi's method. METHODS A non-randomized multicentric case-series retrospective study was developed. Were included patients from 5 centers of Argentina, from January 2010 to June 2019, aged at baseline between 40 and 60 years old, with binocular uncorrected distance visual acuity (UDVA) of 25/20 or better, and with uncorrected near visual acuity (UNVA) at least Jaeger (J) 2 or worse. The treatment was performed with a patented formulation (pilocarpine and diclofenac preservative-free eye drops). The main outcome was binocular UNVA and UDVA. Differences were evaluated by paired t-test. The presence of side effects and patient's satisfaction were also evaluated. Data was analyzed in separated groups according to their follow-up time, from 2 to 10 years. RESULTS A total of 148 patients were included. At baseline, the UNVA for the different groups were between J3 and J8 which was improved to J1 to J2. The mean baseline UDVA has been ranged between 0.02 and 0.04 logMAR. The mean baseline UDVA has been ranged between 0.02 to 0.04 logMAR, after treatment were between 0.01 to 0.03, without a statisticallysignificant improvement. Side effects were spontaneously resolved, and subjective evaluation shows that patients were satisfied. CONCLUSIONS This first multicentric shows that Benozzi's method for presbyopia treatment was safety and improves the UNVA without affecting the UDVA, maintaining their efficacy even after 10 years, in a population aged between 40 and 60 years old, from different ophthalmic centers in Argentina.
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Affiliation(s)
- Giovanna Benozzi
- Centro de Investigación Avanzada para la Presbicia, Buenos Aires, Argentina.,Universidad de Buenos Aires, Facultad de Odontología, Cátedra de Farmacología, Buenos Aires, Argentina
| | | | | | | | | | | | - Sonia Facal
- Centro de Investigación Avanzada para la Presbicia, Buenos Aires, Argentina
| | - Juliana Leiro
- Centro de Investigación Avanzada para la Presbicia, Buenos Aires, Argentina
| | - Betina Orman
- Universidad de Buenos Aires, Facultad de Odontología, Cátedra de Farmacología, Buenos Aires, Argentina. .,Pharmacology Unit, School of Dentistry, Universidad de Buenos Aires, M. T. de Alvear 2142 - 4to. Piso "B", 1122AAH, Buenos Aires, Argentina.
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Geller J, Ding Y. Desiderata for High Quality AMIA Presentation Files. AMIA ... ANNUAL SYMPOSIUM PROCEEDINGS. AMIA SYMPOSIUM 2021; 2020:482-491. [PMID: 33936421 PMCID: PMC8075514] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The use of visual presentations to accompany talks has become the established standard in Medical Informatics conferences and has been the sine qua non at AMIA for many years. The most widely used software tool to prepare these presentations has been PowerPoint. AMIA has requested that researchers create their presentations using a standardized template and make them available ahead of time on the AMIA agenda website, typically as .pptx or .pdf files. In this paper, we are providing a few observations about uptake by the community, but, more importantly, we are making tentative steps towards answering questions about the quality of the visual presentation files. The paper starts with a review of four sets of guidelines for good PowerPoint presentations. It then provides basic descriptive statistics and structural observations about the 2019 AMIA presentations available on AMIA's website and concludes with a few recommendations for the future.
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Affiliation(s)
- James Geller
- New Jersey Institute of Technology, Department of Computer Science, Newark, NJ
| | - Yarou Ding
- New Jersey Institute of Technology, Department of Computer Science, Newark, NJ
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Gyldenkerne A, Aagaard N, Jakobsen M, Toftelund C, Hjortdal J. Changes in accommodative function following small-incision lenticule extraction for high myopia. PLoS One 2020; 15:e0244602. [PMID: 33378342 PMCID: PMC7773189 DOI: 10.1371/journal.pone.0244602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Accepted: 12/12/2020] [Indexed: 12/02/2022] Open
Abstract
PURPOSE To examine whether the amplitude of accommodation, the accommodative response, and the accommodative facility is affected and correlated with changes in higher-order aberrations for patients with high myopia surgically treated with small-incision lenticule extraction (SMILE). METHODS 35 highly myopic eyes (myopic spherical equivalent of at least 6 diopters) of 35 patients treated with SMILE were included. Assessments were made before and 3 months after surgery. Donders push-up-method was used to measure the amplitude of accommodation. The accommodative response was assessed using an open-field autorefractor"Grand Seiko WAM-5500" (Grand Seiko Co. Ltd., Hiroshima, Japan) in combination with a Badal optometer and stimuli of accommodation at 0.0, 0.5, 1.25, 2.0, 3.0, and 4.0 D, respectively. Accommodative facility was measured at 40 cm with ±2,00D flipper lenses. All measurements of accommodation were performed monocularly with the refractive error corrected with soft contact lenses. RESULTS The amplitude of accommodation did not change statistically significantly (mean difference -0.24 D (SD 0.98), 95% CI of mean difference -0.58 D to 0.11 D, paired-sample t(34) = -1.39; P = 0.17). The accommodative responses at 0.0, 0.5, 1.25, 2.0, 3.0, and 4.0 D did not statistically significantly change either (F(6,29) = 1.15; P = .36). Finally, the accommodative facility was also unchanged with a mean difference of 1.11 cycles per minute (SD 5.11, 95% CI of mean difference -0.64 to 2.87, paired-sample t(34) = 1.29; P = 0.21). No clinically significant associations between changes in accommodation and higher-order aberrations were found. CONCLUSIONS SMILE does not alter the amplitude of accommodation, the accommodative response, nor the accommodative facility for highly myopic patients, and the surgically induced corneal higher-order aberrations do not affect the accommodative function.
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Affiliation(s)
- Anders Gyldenkerne
- Department of Ophthalmology, Aarhus University Hospital, Aarhus, Denmark
| | - Nicolaj Aagaard
- Department of Ophthalmology, Aarhus University Hospital, Aarhus, Denmark
| | - Malene Jakobsen
- Department of Ophthalmology, Aarhus University Hospital, Aarhus, Denmark
| | - Carina Toftelund
- Department of Ophthalmology, Aarhus University Hospital, Aarhus, Denmark
| | - Jesper Hjortdal
- Department of Ophthalmology, Aarhus University Hospital, Aarhus, Denmark
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Labiris G, Panagiotopoulou EK, Chatzimichael E, Tzinava M, Mataftsi A, Delibasis K. Introduction of a digital near-vision reading test for normal and low vision adults: development and validation. EYE AND VISION 2020; 7:51. [PMID: 33102611 PMCID: PMC7579962 DOI: 10.1186/s40662-020-00216-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Accepted: 09/15/2020] [Indexed: 11/10/2022]
Abstract
Background MNREAD is an advanced near-vision acuity chart that has already been translated and validated in Greek language. Considering that no validated Greek digital near-vision test exists, our primary objective was to develop and validate a digital near-vision reading test based on the fundamental properties of the Greek printed MNREAD (MNREAD-GR). Methods This is a prospective, comparative study. A digital near-vision chart was developed (Democritus Digital Acuity Reading Test - DDART) with text size calibration, audio recording for automatic reading timing, as well as automatic calculation of reading acuity (RA), maximum reading speed (MRS), critical print size (CPS) and reading accessibility index (ACC). Normal and low vision subjects participated in the validation process, responding to MNREAD-GR and DDART at the same day, at a 40 cm viewing distance. Differences in all parameters between the charts were compared with t-test and intraclass correlation coefficients (ICCs). Within 15 days, all participants responded again to DDART in a different set of sentences to assess its test-retest reliability. Results One hundred patients (normal vision group - NVG: 70 patients; low vision group - LVG: 30 patients) responded to both reading tests. Non-significant differences were detected for all parameters between DDART and MNREAD-GR except for MRS and ACC that were significantly higher in MNREAD-GR in NVG (p < 0.01). NVG participants demonstrated sufficient ICCs that ranged from 0.854 to 0.963, while LVG demonstrated ICCs for RA, ACC, MRS and CPS equal to 0.986, 0.894, 0.794 and 0.723, respectively. All parameters calculated with DDART demonstrated excellent test-retest reliability (ICCs: 0.903 - 0.956). Conclusions The proposed reading test presented comparable validity and repeatability to MNREAD-GR suggesting that it can be used both in normal and low vision Greek patients. Trial registration ClinicalTrials.gov, NCT04242836. Registered 24 January 2020 - Retrospectively registered.
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Affiliation(s)
- Georgios Labiris
- Department of Ophthalmology, University Hospital of Alexandroupolis, Dragana, 68100 Alexandroupolis, Greece
| | | | - Eleftherios Chatzimichael
- Department of Ophthalmology, University Hospital of Alexandroupolis, Dragana, 68100 Alexandroupolis, Greece
| | - Maria Tzinava
- Department of Computer Science and Biomedical Informatics, University of Thessaly, 35100, Lamia, Greece
| | - Asimina Mataftsi
- 2nd Department of Ophthalmology, Aristotle University of Thessaloniki, 56429, Thessaloniki, Greece
| | - Konstantinos Delibasis
- Department of Computer Science and Biomedical Informatics, University of Thessaly, 35100, Lamia, Greece
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Packer M, Alfonso JF, Aramberri J, Elies D, Fernandez J, Mertens E. Performance and Safety of the Extended Depth of Focus Implantable Collamer ® Lens (EDOF ICL) in Phakic Subjects with Presbyopia. Clin Ophthalmol 2020; 14:2717-2730. [PMID: 32982164 PMCID: PMC7509320 DOI: 10.2147/opth.s271858] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Accepted: 08/20/2020] [Indexed: 12/02/2022] Open
Abstract
Purpose To evaluate the performance and safety of the Extended Depth of Focus Implantable Collamer® Lens (EDOF ICL) for improvement of uncorrected near, intermediate and distance visual acuity in phakic subjects with myopia and presbyopia. Design Prospective multicenter study. Methods Presbyopic subjects who required an EDOF ICL in the range of −0.50 D to −18.00 D, exhibited ≤ 0.75 D refractive astigmatism and required from +1.00 to +2.50 D reading add were implanted bilaterally. Assessments at 6 months included uncorrected near, intermediate and distance visual acuities, defocus curves, contrast sensitivity, responses to the National Eye Institute Refractive Error Quality of Life Questionnaire and a Task Assessment Questionnaire. Results A total of 34 subjects completed the study. Investigators targeted emmetropia in all eyes. Mean binocular uncorrected near, intermediate and distance visual acuities measured logMAR −0.01 ± 0.05 (20/20), −0.02 ± 0.08 (20/19) and 0.07 ± 0.10 (20/23), respectively. Mean monocular uncorrected near, intermediate and distance visual acuities measured logMAR 0.068 ± 0.09 (20/23), 0.062 ± 0.10 (20/23) and 0.16 ± 0.12 (20/29). There were no clinically or statistically significant differences in contrast sensitivity between baseline and 6 months under any testing conditions. Subjects reported significant improvements in measures of vision-related quality of life and ability to perform tasks at all distances without glasses or contact lenses. Overall, satisfaction with the EDOF ICL was high: postoperatively, 91.2% of subjects were satisfied with their vision. Conclusion This multicenter, prospective clinical investigation demonstrated the ability of the EDOF ICL to correct myopia and presbyopia, resulting in improvement of uncorrected near, intermediate and distance visual acuity without compromising the quality of vision. The EDOF ICL allowed subjects to perform tasks of daily living without glasses or contact lenses. Subjects reported significant improvements in quality of life with high levels of spectacle independence and satisfaction.
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Affiliation(s)
- Mark Packer
- Packer Research Associates, Boulder, CO, USA
| | - Jose F Alfonso
- Ophthalmology Institute Fernández Vega, Oviedo, Asturias, Spain
| | | | - Daniel Elies
- Institute of Ocular Microsurgery, Barcelona, Spain
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Künzel SH, Möller PT, Lindner M, Goerdt L, Nadal J, Schmid M, Schmitz-Valckenberg S, Holz FG, Fleckenstein M, Pfau M. Determinants of Quality of Life in Geographic Atrophy Secondary to Age-Related Macular Degeneration. Invest Ophthalmol Vis Sci 2020; 61:63. [PMID: 32462198 PMCID: PMC7405807 DOI: 10.1167/iovs.61.5.63] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
Purpose To longitudinally evaluate vision-related quality of life (VRQoL) in geographic atrophy (GA) secondary to age-related macular degeneration (AMD) and define its relation to visual function and structural biomarkers. Methods Patients with GA secondary to AMD were recruited in the context of the prospective, non-interventional, natural-history Directional Spread in Geographic-Atrophy study (NCT02051998). Fundus autofluorescence and infrared reflectance images were semi-automatically annotated for GA. Linear mixed-effects models were applied to investigate the association of putative determinants with the National Eye Institute Visual Function Questionnaire 25 (NEI VFQ-25) VRQoL. Results A total of 87 patients with a mean age ± SD of 77.07 ± 7.49 years were included in the analysis. At baseline, median (IQR) best-corrected visual acuity (BCVA) was 0.3 (0.51) for the better eye and 0.89 (0.76) for the worse eye; 46% of the patients showed binocular and 25.3% monocular non-central GA. The VRQoL composite score was impaired: 69.96 (24.03). Sixty-six patients with a median of 2 (2) follow-up visits after 1.08 (0.78) years were examined longitudinally. Conclusions Vision-related quality of life is significantly impaired in patients with GA secondary to AMD. The cross-sectional and longitudinal association of VRQoL with visual functional and structural biomarkers supports the validity of the NEI VFQ-25 VRQoL.
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Rossouw P, Guichard MM, Hatz K. Contrast sensitivity and binocular reading speed best correlating with near distance vision-related quality of life in bilateral nAMD. Ophthalmic Physiol Opt 2020; 40:760-769. [PMID: 32959926 PMCID: PMC7702040 DOI: 10.1111/opo.12736] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Revised: 08/17/2020] [Accepted: 08/17/2020] [Indexed: 01/14/2023]
Abstract
Purpose Bilateral neovascular age‐related macular degeneration (nAMD) causes difficulties in daily life, especially with regard to near‐vision tasks, despite well preserved Early Treatment of Diabetic Retinopathy Study (ETDRS) best corrected visual acuity (BCVA) at distance. Therefore, alternative visual function measures were evaluated in terms of their correlation with vision‐related quality of life scores (QoL). Methods A prospective cross‐sectional pilot study including patients with a diagnosis of bilateral nAMD having lesions within the central 1 mm ETDRS grid subfield. Standardised testing included a vision‐related QoL assessment (NEI‐VFQ25), best corrected visual acuity (BCVA), low luminance visual acuity (LLVA), Radner maximum reading speed and Pelli‐Robson contrast sensitivity (CS). Results N = 54. The mean better eye (range) BCVA was 79 (55–96) letters, median (range) LLVA 79.5 (58–97) letters and median (range) CS 1.35 (0–1.65) log units. Mean binocular maximum reading speed was 117.33 ± 28.42 wpm. The best correlations with the near subscale score were found for CS followed by binocular maximum reading speed (r = 0.59, p = 0.0001; r = 0.36, p = 0.008, respectively). A weaker correlation was observed for the BCVA in the better eye (r = 0.33, p = 0.02). The correlation between the NEI‐VFQ25 distance subscale and BCVA was weaker (r = 0.37, p = 0.005) than the correlations with CS (r = 0.67, p = 0.0001) and LLVA (r = 0.40, p = 0.003). Conclusions For patients with a bilateral centre‐involving nAMD, the best correlation with near QoL was the better eye CS followed by maximum binocular reading speed. These measures could be valuable in quantifying vision‐related QoL outcomes in AMD clinical trials.
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Affiliation(s)
- Petra Rossouw
- Department of Vision Science and Optometry, University of Aalen, Aalen, Germany.,Vista Klinik Binningen, Binningen, Switzerland
| | | | - Katja Hatz
- Vista Klinik Binningen, Binningen, Switzerland.,Faculty of Medicine, University of Basel, Basel, Switzerland
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Stulova AN, Semenova NS, Akopyan VS. [Visual acuity assessment: historical overview and current trends]. Vestn Oftalmol 2020; 135:141-146. [PMID: 32015319 DOI: 10.17116/oftalma2019135061141] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The article reviews the evolution of visual acuity assessment and gives comparison of the visual acuity charts (Snellen vs. ETDRS) widely used in research and clinical practice.
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Affiliation(s)
- A N Stulova
- Lomonosov Moscow State University, Faculty of Fundamental Medicine, 27/1 Lomonosov Av., Moscow, Russian Federation, 119991
| | - N S Semenova
- Lomonosov Moscow State University, Faculty of Fundamental Medicine, 27/1 Lomonosov Av., Moscow, Russian Federation, 119991
| | - V S Akopyan
- Lomonosov Moscow State University, Faculty of Fundamental Medicine, 27/1 Lomonosov Av., Moscow, Russian Federation, 119991
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Heier JS, Pieramici D, Chakravarthy U, Patel SS, Gupta S, Lotery A, Lad EM, Silverman D, Henry EC, Anderesi M, Tschosik EA, Gray S, Ferrara D, Guymer R. Visual Function Decline Resulting from Geographic Atrophy: Results from the Chroma and Spectri Phase 3 Trials. Ophthalmol Retina 2020; 4:673-688. [PMID: 32199866 DOI: 10.1016/j.oret.2020.01.019] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2020] [Revised: 01/17/2020] [Accepted: 01/21/2020] [Indexed: 11/19/2022]
Abstract
PURPOSE To assess visual function outcomes to 48 weeks in patients with bilateral geographic atrophy (GA) secondary to age-related macular degeneration included in 2 interventional clinical trials: relationship to baseline lesion size, outcomes by baseline lesion characteristic subgroups, and correlation of visual function outcomes with GA area. DESIGN The Chroma and Spectri studies (ClinicalTrials.gov identifiers, NCT02247479 and NCT02247531, respectively) were identically designed phase 3, double-masked, multicenter, randomized, sham injection-controlled clinical trials that evaluated intravitreal lampalizumab in GA. PARTICIPANTS Eligible patients were 50 years of age or older with well-demarcated bilateral GA (lesion size, 1-7 disc areas) without evidence of or previous treatment for choroidal neovascularization in either eye and best-corrected visual acuity (BCVA) letter score of 49 letters or more (≥1 GA lesion within 250 μm of foveal center if BCVA ≥79 letters). METHODS Patients (pooled n = 1881) were randomized 2:1:2:1 to lampalizumab every 4 weeks, sham every 4 weeks, lampalizumab every 6 weeks, or sham every 6 weeks. Sham arms were pooled for analysis. MAIN OUTCOME MEASURES Functional end points included change in BCVA from baseline to week 48, low-luminance visual acuity, mesopic microperimetry (number of absolute scotomatous points, mean macular sensitivity), binocular and monocular maximum reading speed, and 2 validated patient-reported outcome measures: Functional Reading Independence Index and 25-item National Eye Institute Visual Function Questionnaire. RESULTS Enlargement of GA area, approximately 2 mm2/year on average across all treatment groups in each study, was accompanied by overall deterioration in all functional end points. No statistically significant differences were found between lampalizumab or sham arms for changes from baseline in functional assessment scores. Of visual function tests, only microperimetry outcomes were correlated moderately with GA lesion area when assessed cross-sectionally at baseline and week 48. CONCLUSIONS Chroma and Spectri provide a unique data set of functional end points in GA that are relevant for future clinical trials. Patients with bilateral GA experienced a consistent decline in visual function over 48 weeks, but measures of visual function were not correlated strongly with GA lesion area. It is not possible to predict visual function outcomes from GA lesion size.
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Affiliation(s)
| | | | - Usha Chakravarthy
- Centre for Public Health, Queen's University of Belfast, Belfast, United Kingdom
| | - Sunil S Patel
- Ophthalmology Specialists of Texas, PLLC, and Integrated Clinical Research, LLC, Abilene, Texas
| | - Sunil Gupta
- Retina Specialty Institute, Pensacola, Florida
| | - Andrew Lotery
- Faculty of Medicine, University of Southampton, Southampton, United Kingdom
| | - Eleonora M Lad
- Department of Ophthalmology, Duke University Medical Center, Durham, North Carolina
| | | | - Erin C Henry
- Genentech, Inc., South San Francisco, California
| | - Majid Anderesi
- Roche Products Limited, Welwyn Garden City, United Kingdom
| | | | - Sarah Gray
- Genentech, Inc., South San Francisco, California
| | | | - Robyn Guymer
- Centre for Eye Research Australia, Department of Surgery, University of Melbourne, Royal Victorian Eye and Ear Hospital, Melbourne, Australia
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Omari A, Niziol LM, Gardner TW. Reading deficits in diabetic patients treated with panretinal photocoagulation and good visual acuity. Acta Ophthalmol 2019; 97:e1013-e1018. [PMID: 30968579 DOI: 10.1111/aos.14097] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Accepted: 03/04/2019] [Indexed: 11/29/2022]
Abstract
PURPOSE Patients with proliferative diabetic retinopathy (PDR) treated with panretinal photocoagulation (PRP) can have abnormal visual functioning that may be missed by Snellen visual acuity alone. We investigated reading deficits in patients treated with PRP for PDR using the Minnesota reading (MNREAD) test. METHODS Thirty patients treated with PRP and 15 controls underwent best-corrected visual acuity (BCVA), the MNREAD, frequency doubling perimetry (FDP), and fundus photography. Panretinal photocoagulation (PRP)-treated subjects were compared to controls on MNREAD results by two-sample t-tests and Wilcoxon tests and Pearson correlations were used to assess the association between performance on MNREAD and other central visual function tests within PRP subjects. RESULTS Panretinal photocoagulation (PRP)-treated patients had reduced MNREAD acuity (p < 0.0001) and increased critical print size (p = 0.01) compared to controls but not a significantly reduced maximum reading speed (p = 0.06). Logmar MNREAD acuity was strongly positive correlated with logMAR BCVA (r = 0.58, p = 0.0098) and strongly negatively correlated with FDP foveal threshold (r = -0.63, p = 0.0030). Maximum reading speed was positively correlated with FDP foveal threshold (r = 0.57, p = 0.0143) and FDP mean deviation (r = 0.51, p = 0.0432). Visual acuity did not correlate with the sensitivities on the FDP. CONCLUSION The MNREAD test reveals that PRP reduces reading ability and other aspects of macular function, and thus provides new understanding of how vision-related quality of life is impaired. These findings may lead to improved means to evaluate and enhance vision following treatment for PDR.
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Affiliation(s)
- Amro Omari
- Department of Ophthalmology and Visual Sciences W. K. Kellogg Eye Center University of Michigan Ann Arbor Michigan USA
| | - Leslie M Niziol
- Department of Ophthalmology and Visual Sciences W. K. Kellogg Eye Center University of Michigan Ann Arbor Michigan USA
| | - Thomas W Gardner
- Department of Ophthalmology and Visual Sciences W. K. Kellogg Eye Center University of Michigan Ann Arbor Michigan USA
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Abstract
This review gives an overview of the current status of standardization by statistical evaluation of reading charts. First begun only 20 years ago, the statistical evaluation of reading charts now reflects an increasing clinical and scientific interest in standardized, comparable, and reproducible reading charts.For clinical or research purposes in human subjects, standardization of psychophysical tests and their test items by statistical evaluation is mandatory because it provides experimental control. Initial attempts at reading chart standardization were made by characterizing the test items, either in terms of a selection of unrelated words or in terms of sentences representing a constant number of characters, including spaces. As initiated by the RADNER Reading Charts, standardization of reading charts (and test items) by statistical evaluation has gained increasing clinical and scientific interest in the last two decades and has later also been applied to some of the other modern reading charts. A literature search was performed with respect to reading charts that (a) have been produced in accordance with the recommendations of the International Council of Ophthalmology (geometrical print size progression), (b) have been statistically analyzed, and/or (c) use clearly characterized test items (conceptually and statistically). These reading charts are as follows: the Bailey-Lovie Word Reading Charts, the Colenbrander Cards, the RADNER Reading Charts, the MNREAD Acuity Charts, the Smith-Kettlewell Reading Test (SKread Test), the C-Read Charts, and the Balsam Alabdulkader-Leat (BAL) Chart. The test items of these charts have been characterized either empirically or by statistical analysis and selection. The extent of the statistical evaluation of the reading charts varies. Despite their different methodological approaches, these reading charts represent an advancement that has made possible the useful comparison and reproducible evaluation of near visual performance.
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Ergänzungen und Berichtigungen zur Bestimmung des Nahvisus in der Publikation „Das augenfachärztliche Gutachten“ der Autoren T. Heinzle, P. Niedermüller, F. Orou. SPEKTRUM DER AUGENHEILKUNDE 2019. [DOI: 10.1007/s00717-018-0410-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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47
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Xiong YZ, Calabrèse A, Cheong AMY, Legge GE. Reading Acuity as a Predictor of Low-Vision Reading Performance. Invest Ophthalmol Vis Sci 2019; 59:4798-4803. [PMID: 30347073 PMCID: PMC6181187 DOI: 10.1167/iovs.18-24716] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Purpose Most people with low vision experience difficulty with reading. Reading assessment can provide guidance for prescription of reading aids and strategies for reading rehabilitation. Here we investigate the effectiveness of letter acuity (LA) and reading acuity (RA) as predictors of low-vision reading performance. Methods Low-vision subjects (n = 58), young control subjects (n = 52), and older control subjects (n = 14) participated in this study. The low-vision subjects were separated into a Macular group (n = 30) and a Nonmacular group (n = 28) based on whether the diagnoses primarily affected the macular area. LA was measured with the Lighthouse Distance Visual Acuity Chart and RA with the MNREAD Acuity Chart. Reading speeds were obtained across a range of print sizes from the MNREAD test. The MNREAD data were used to estimate required print sizes for three functionally important types of reading for each subject: spot reading (40 words/min [wpm]), fluent reading (80 wpm), and critical print size (required to achieve maximum reading speed). Results For equal values of LA, the Macular group had significantly worse RA than the Nonmacular group. The differences between vision groups, as well as individual variations within groups, were largely explained by the differences in RA. RA is a better predictor than LA for spot reading size, fluent reading size, and critical print size. Conclusions RA may provide more accurate assessment of reading performance than LA for purposes of low-vision reading rehabilitation.
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Affiliation(s)
- Ying-Zi Xiong
- Department of Psychology, University of Minnesota, Minneapolis, Minnesota, United States
| | - Aurélie Calabrèse
- Department of Psychology, University of Minnesota, Minneapolis, Minnesota, United States.,Laboratoire de Psychologie Cognitive, Aix-Marseille University, Marseille, France
| | - Allen M Y Cheong
- Department of Psychology, University of Minnesota, Minneapolis, Minnesota, United States.,School of Optometry, The Hong Kong Polytechnic University, Hung Hom, Hong Kong, China
| | - Gordon E Legge
- Department of Psychology, University of Minnesota, Minneapolis, Minnesota, United States
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Vargas V, Radner W, Allan BD, Reinstein DZ, Burkhard Dick H, Alió JL. Methods for the study of near, intermediate vision, and accommodation: an overview of subjective and objective approaches. Surv Ophthalmol 2019; 64:90-100. [DOI: 10.1016/j.survophthal.2018.08.003] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2018] [Revised: 08/02/2018] [Accepted: 08/06/2018] [Indexed: 11/26/2022]
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Radner W, Benesch T. Age-related changes in baseline reading acuity and speed as measured using RADNER Reading Charts in healthy eyes with best corrected ETDRS distance acuity. Br J Ophthalmol 2018; 103:1518-1523. [PMID: 30573497 DOI: 10.1136/bjophthalmol-2018-313384] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Revised: 12/04/2018] [Accepted: 12/06/2018] [Indexed: 11/04/2022]
Abstract
PURPOSE To assess age-related differences in baseline measures of reading performance obtained from the RADNER Reading Charts in healthy eyes with best corrected (ETDRS) distance acuity. METHODS Cross-sectional study of participants (n=200) aged 25-74 years (n=20 per 5 years age group). Best corrected distance visual acuity was measured monocularly with ETDRS 2000 Charts. Reading performance was evaluated binocularly with the RADNER Reading Charts. Reading acuity (RA), reading acuity score (RA score), mean reading speed (MEAN-RS), maximum reading speed, reading speed with a long paragraph, critical print size (CPS) and the logMAR/logRAD ratio were analysed. RESULTS RA, RA score, CPS-1 (last logRAD with normal reading speed) and ETDRS acuity did not change significantly between age 25 and 54 years. Overall, the mean RA was -0.091±0.07 logRAD, and the RA score was -0.069±0.07 logRAD. The mean difference between the RA and best ETDRS acuity was 0.0603±0.055 logMAR (r=0.62; p<0.05). The logMAR/logRAD ratio was 87.75%±11.23%. The MEAN-RS ranged from 189±21.9 words per minute (wpm) for the group aged 70-74 years to 236±22.5 wpm for the group aged 40-44 years and correlated well with the long paragraph results (r=0.87). CONCLUSION Best corrected RA, reading speed and ETDRS distance acuity were constant until the age of 54 years. An age-related break point was found between the groups aged 50-54 years and 55-59 years; for reading speed, the break point can be assumed to be within the age range of 50-54 years.
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Affiliation(s)
| | - Thomas Benesch
- Department of Development Studies, University of Vienna, Vienna, Austria
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Hou F, Zhao Y, Lesmes LA, Bex P, Yu D, Lu ZL. Bayesian adaptive assessment of the reading function for vision: The qReading method. J Vis 2018; 18:6. [PMID: 30208426 PMCID: PMC6133446 DOI: 10.1167/18.9.6] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Reading is a fundamental skill that can be significantly affected by visual disabilities. Reading performance, which typically is measured as reading speed with a reading chart, is a key endpoint for quantifying normal or abnormal vision. Despite its importance for clinical vision, existing reading tests for vision are time consuming and difficult to administer. Here, we propose a Bayesian adaptive method, the qReading method, for automated assessment of the reading speed versus print size function. We implemented the qReading method with a word/nonword lexical decision task and validated the method with computer simulations and a psychophysical experiment. Computer simulations showed that both the interrun standard deviation and intrarun half width of the 68.2% credible interval of the estimated reading speeds from the qReading method were less than 0.1 log10 units after 150 trials, with a bias of 0.05 log10 units. In the psychophysical experiment, reading functions measured by the qReading and Psi methods (Kontsevich & Tyler, 1999) in a word/nonword lexical decision task were compared. The estimated reading functions obtained with the qReading and Psi methods were highly correlated (r = 0.966 ± 0.004, p < 0.01). The precision of the qReading method with 225 trials was comparable to that of the Psi method with 450 trials. We conclude that the qReading method can precisely and accurately assess the reading function in much reduced time, with great promise in both basic research and clinical applications.
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Affiliation(s)
- Fang Hou
- School of Ophthalmology & Optometry and Eye Hospital, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Yukai Zhao
- Center for Cognitive and Brain Sciences, Center for Cognitive and Behavioral Brain Imaging, and Department of Psychology, The Ohio State University, Columbus, OH, USA
| | | | - Peter Bex
- Department of Psychology, Northeastern University, Boston, MA, USA
| | - Deyue Yu
- College of Optometry, The Ohio State University, Columbus, OH, USA
| | - Zhong-Lin Lu
- Center for Cognitive and Brain Sciences, Center for Cognitive and Behavioral Brain Imaging, and Department of Psychology, The Ohio State University, Columbus, OH, USA
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