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Morgan PB, Efron N, Papas E, Barnett M, Carnt N, Dutta D, Hepworth A, Little JA, Nagra M, Pult H, Schweizer H, Shen Lee B, Subbaraman LN, Sulley A, Thompson A, Webster A, Markoulli M. BCLA CLEAR Presbyopia: Management with contact lenses and spectacles. Cont Lens Anterior Eye 2024; 47:102158. [PMID: 38631935 DOI: 10.1016/j.clae.2024.102158] [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: 04/19/2024]
Abstract
This paper seeks to outline the history, market situation, clinical management and product performance related to the correction of presbyopia with both contact lenses and spectacles. The history of the development of various optical forms of presbyopic correction are reviewed, and an overview is presented of the current market status of contact lenses and spectacles. Clinical considerations in the fitting and aftercare of presbyopic contact lens and spectacle lens wearers are presented, with general recommendations for best practice. Current options for contact lens correction of presbyopia include soft simultaneous, rigid translating and rigid simultaneous designs, in addition to monovision. Spectacle options include single vision lenses, bifocal lenses and a range of progressive addition lenses. The comparative performance of both contact lens and spectacle lens options is presented. With a significant proportion of the global population now being presbyopic, this overview is particularly timely and is designed to act as a guide for researchers, industry and eyecare practitioners alike.
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Affiliation(s)
- Philip B Morgan
- Eurolens Research, Division of Pharmacy and Optometry, University of Manchester, United Kingdom.
| | - Nathan Efron
- Optometry and Vision Science, Queensland University of Technology, Brisbane, Queensland, Australia
| | - Eric Papas
- School of Optometry and Vision Science, University of New South Wales, Sydney, Australia
| | | | - Nicole Carnt
- School of Optometry and Vision Science, University of New South Wales, Sydney, Australia
| | - Debarun Dutta
- Optometry and Vision Science Research Group, Aston University, Birmingham, United Kingdom
| | - Andy Hepworth
- EssilorLuxottica Europe North, Bristol, United Kingdom
| | - Julie-Anne Little
- Centre for Optometry and Vision Science, Biomedical Sciences Research Institute, Ulster University, Coleraine, United Kingdom
| | - Manbir Nagra
- Vision and Eye Research Institute, ARU, Young Street, Cambridge, United Kingdom
| | - Heiko Pult
- Dr Heiko Pult - Optometry and Vision Research, Weinheim, Germany
| | - Helmer Schweizer
- CEO Helmer Schweizer Consulting Group (HSCG), Bassersdorf, Switzerland
| | - Bridgitte Shen Lee
- Vision Optique and Ocular Aesthetics dba Ocular Clinical Trials, Houston, TX, United States
| | | | - Anna Sulley
- CooperVision International Ltd, Chandlers Ford, United Kingdom
| | | | | | - Maria Markoulli
- School of Optometry and Vision Science, University of New South Wales, Sydney, Australia
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Tuan KA, Benoit DP, O’Connor B. Evaluation of the Functional Visual Range of a Catenary Curve-Based, Extended Depth-of-Focus Contact Lens for Presbyopia. Clin Ophthalmol 2024; 18:2113-2123. [PMID: 39055378 PMCID: PMC11269816 DOI: 10.2147/opth.s468699] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2024] [Accepted: 07/10/2024] [Indexed: 07/27/2024] Open
Abstract
Purpose Employing "relative plus" (Add) power to extend the functional vision range is a primary method to correct presbyopia with contact lenses. Simultaneous vision contact lenses are typically associated with visual disturbances at higher Add powers, often resulting in compromised vision and necessitating specialized fitting methods. Among mature individuals suffering from presbyopia, we evaluated the visual performance of a catenary curve-based extended depth of focus (EDOF) optical profile contact lens with a simplified fitting process. Methods Mature individuals suffering from presbyopia with Add requirements of +2.00 D or more were recruited. Monocular and binocular visual acuities were obtained across optical vergences ranging from -4.00 D to +2.00 D to generate defocus curves for best spectacle-corrected distance vision (baseline) and center-distance, catenary curve-based contact lenses (catenary). A subjective questionnaire evaluating the lenses was employed. Results Twenty-four mature individuals suffering from presbyopia, average age 59.2 (range: 51-68 years) and average Add requirement of +2.24 D (range +2.00 D to +2.50 D) were enrolled. Under high-contrast conditions, the catenary lens provided functional binocular vision (0.30 logMAR or better) at all optical vergences from distance to -3.50 D (equivalent to 28 cm). Participants demonstrated a significant improvement (p < 0.05) in binocular visual acuity while wearing the catenary lens with an imposed defocus of -1.50 D to -4.00 D (equivalent to object distances from 66 cm to 25 cm). Subjective ratings with the catenary lens were equivalent to those documented at baseline. Conclusion The catenary curve-based lenses provided a full range of functional vision while maintaining clear distance vision for individuals suffering from advanced presbyopia. Comparison with previous results involving this lens indicates that these findings are also generalizable to wearers with lower Add requirements. This EDOF design provides a universal Add which is sufficient for advanced presbyopia. Trial Registration ClinicalTrials.gov. Identifier: NCT05495971.
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Affiliation(s)
- K Ashley Tuan
- Visioneering Technologies, Incorporated, Medical Affairs, Alpharetta, GA, USA
| | - Douglas P Benoit
- Visioneering Technologies, Incorporated, Medical Affairs, Alpharetta, GA, USA
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Manoharan MK, Verkicharla PK. Randomised clinical trial of extended depth of focus lenses for controlling myopia progression: Outcomes from SEED LVPEI Indian Myopia Study. Br J Ophthalmol 2024:bjo-2023-323651. [PMID: 38604622 DOI: 10.1136/bjo-2023-323651] [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: 03/29/2023] [Accepted: 01/08/2024] [Indexed: 04/13/2024]
Abstract
PURPOSE To determine the efficacy of extended depth of focus (EDOF) contact lenses for controlling myopia progression in children through a 1-year randomised clinical trial. METHODS A total of 104 children aged 7-15 years, with spherical equivalent refraction ≤-0.50 D, were randomly assigned to wear SEED 1 dayPure EDOF Mid contact lenses (n=48) or single vision spectacle lenses (n=56). Cycloplegic refraction with Shin-Nippon open field autorefractor and axial length with Lenstar LS 900 was determined at the baseline and 12-month visits. The compliance, visual discomfort and dryness questionnaires were administered during the final visit. RESULTS Sixty-nine children (control: n=38; treatment: 31) completed the 12-month follow-up visit, with no difference in baseline characteristics between the groups. Mean (SEM) myopia progression in the 12th month was -0.48±0.07D in the control group and -0.20±0.08D in the treatment group. Mean axial elongation was 0.22±0.03 mm and 0.11±0.03 mm in the control and treatment groups, respectively. SEED 1 dayPure EDOF Mid contact lenses slowed myopia progression by 59% (-0.28D; p=0.01) based on spherical equivalent refraction and controlled axial length by 49% (0.11 mm; p=0.007) in comparison to single vision spectacle lenses. None of the participants reported any adverse effects. While most of the participants (82%) were comfortable with the contact lenses, 11% reported occasional dryness and 14% experienced mild fluctuations in visual acuity after immediate lens wear. CONCLUSION Daily wear of SEED 1 dayPure EDOF Mid contact lenses in Indian children showed a significant effect in controlling myopia progression and axial elongation.
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Affiliation(s)
- Manoj K Manoharan
- Infor Myopia Centre, L V Prasad Eye Institute, Hyderabad, Telangana, India
- Myopia Research Lab, Brien Holden Institute of Optometry and Vision Sciences, Prof. Brien Holden Eye Research Centre, L V Prasad Eye Institute, Hyderabad, Telangana, India
| | - Pavan K Verkicharla
- Infor Myopia Centre, L V Prasad Eye Institute, Hyderabad, Telangana, India
- Myopia Research Lab, Brien Holden Institute of Optometry and Vision Sciences, Prof. Brien Holden Eye Research Centre, L V Prasad Eye Institute, Hyderabad, Telangana, India
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Privado-Aroco A, Romaguera M, Valdes-Soria G, Serramito M, Carracedo G. Visual quality assessment and comparison of two multifocal scleral lens designs. Cont Lens Anterior Eye 2024; 47:102098. [PMID: 38040556 DOI: 10.1016/j.clae.2023.102098] [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: 06/08/2023] [Revised: 11/14/2023] [Accepted: 11/27/2023] [Indexed: 12/03/2023]
Abstract
PURPOSE To analyze the visual quality of a new multifocal scleral lens with a customized decentred optic zone compared to a conventional design by measuring visual acuity, contrast sensitivity function, stereopsis, subjective vision and comfort after one month of wear. METHODS Nineteen presbyopic subjects were fitted with two multifocal scleral lens designs: a conventional multifocal and a customized decentred optical zone design. All subjects wore both scleral lens designs for one month with a two-week washout period. The main variables evaluated included high and low-contrast visual acuity under photopic and mesopic light conditions, binocular defocus curves, contrast sensitivity function and a visual analogue scale (VAS) for subjective vision and comfort. RESULTS Comparing the two scleral lens designs, statistically significant differences in visual acuity were found, highlighting the improvement in more than one chart line (6 letters) for low contrast near tests under photopic light conditions with the decentred optics lens design. VAS questionnaire scores also showed a significant improvement in distance and overall subjective vision with the decentred optics lenses. Contrast sensitivity function showed an improvement with decentred multifocal lenses at all spatial frequencies measured, being statistically significant for 12 cycles per degree. No differences in stereoacuity were found. CONCLUSION Multifocal scleral lenses with a customized decentred optical zone proved to be a promising refractive correction in presbyopic subjects after one month of wear, offering good comfort and visual quality under photopic and mesopic light conditions.
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Affiliation(s)
- Ana Privado-Aroco
- Department of Optometry and Vision, Faculty of Optics and Optometry, Complutense University of Madrid, Spain; Ocupharm Research Group, Faculty of Optics and Optometry, Complutense University of Madrid, Spain
| | - María Romaguera
- Department of Optometry and Vision, Faculty of Optics and Optometry, Complutense University of Madrid, Spain; Ocupharm Research Group, Faculty of Optics and Optometry, Complutense University of Madrid, Spain
| | - Gonzalo Valdes-Soria
- Department of Optometry and Vision, Faculty of Optics and Optometry, Complutense University of Madrid, Spain; Ocupharm Research Group, Faculty of Optics and Optometry, Complutense University of Madrid, Spain
| | - María Serramito
- Department of Optometry and Vision, Faculty of Optics and Optometry, Complutense University of Madrid, Spain; Ocupharm Research Group, Faculty of Optics and Optometry, Complutense University of Madrid, Spain
| | - Gonzalo Carracedo
- Department of Optometry and Vision, Faculty of Optics and Optometry, Complutense University of Madrid, Spain; Ocupharm Research Group, Faculty of Optics and Optometry, Complutense University of Madrid, Spain.
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Fan H, Zhang X, Wei Q, Zhong Q, Liu M, Li B, Li S, Zhang R, Xie A. Myopia control efficacy of peripheral defocus soft contact lenses in children and adolescents: A meta-analysis. Eur J Ophthalmol 2024:11206721241229474. [PMID: 38298013 DOI: 10.1177/11206721241229474] [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: 02/02/2024]
Abstract
OBJECTIVES To evaluate the effect of peripheral defocus soft contact lenses (PDSCLs) on controlling myopia progression in children and adolescents, and to compare it with orthokeratology (Ortho-K) and single vision lenses (SVLs). METHODS We conducted a systematic search of PubMed, the Cochrane Library, Medline, CNKI, CBM, VIP, and WanFang Data databases for randomized controlled trials (RCTs) and cohort studies that investigated the effects of PDSCLs on myopia control in children and adolescents. The published languages were limited to English and Chinese. The risk bias tool provided by the Cochrane risk-of-bias tool and Newcastle-Ottawa Scale were used to assess the risk bias of included studies of RCTs and CTs. The published biases of included studies were assessed by Egger`s test. RESULTS We included 21 studies, comprising 13 RCTs and 8 cohort studies, with a total of 1337 participants in the PDSCLs group, 428 in the Ortho-K group, and 707 in the SVLs group. The meta-analysis indicated no significant difference between PDSCLs and Ortho-K in controlling the increase of diopter (MD = 0.01, 95% CI: -0.06, 0.09; P = 0.69) and axial length (MD = -0.01, 95% CI: -0.02, 0.00; P = 0.28). Compared with SVLs, PDSCLs had a better effect in controlling the increase of diopter (MD = 0.23, 95% CI: 0.17, 0.28; P < 0.00001) and axial length (MD = -0.11, 95% CI: -0.12, -0.09; P < 0.00001) in children and adolescents. CONCLUSIONS Children and adolescents wearing PDSCLs can achieve better myopia control than those wearing SVLs, and their effect is comparable to that of Ortho-K.
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Affiliation(s)
- Haobo Fan
- Eye School of Chengdu University of TCM, Chengdu, China
- Department of Optometry and Pediatric Ophthalmology, Ineye Hospital of Chengdu University of TCM, Chengdu, China
| | - Xuemin Zhang
- Department of Optometry and Pediatric Ophthalmology, Ineye Hospital of Chengdu University of TCM, Chengdu, China
| | - Qiumei Wei
- Department of Optometry and Pediatric Ophthalmology, Ineye Hospital of Chengdu University of TCM, Chengdu, China
| | - Qiao Zhong
- Department of Optometry and Pediatric Ophthalmology, Ineye Hospital of Chengdu University of TCM, Chengdu, China
| | - Meng Liu
- Ophthalmology Department, Chongqing University Jiangjin Hospital, Chongqing, China
| | - Bingqian Li
- Department of Optometry and Pediatric Ophthalmology, Ineye Hospital of Chengdu University of TCM, Chengdu, China
| | - Shilin Li
- Department of Optometry and Pediatric Ophthalmology, Ineye Hospital of Chengdu University of TCM, Chengdu, China
| | - Renwei Zhang
- Department of Optometry and Pediatric Ophthalmology, Ineye Hospital of Chengdu University of TCM, Chengdu, China
| | - Airui Xie
- Eye School of Chengdu University of TCM, Chengdu, China
- Department of Optometry and Pediatric Ophthalmology, Ineye Hospital of Chengdu University of TCM, Chengdu, China
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Alvarez-Peregrina C, Sanchez-Tena MA, Martin M, Villa-Collar C, Povedano-Montero FJ. Multifocal contact lenses: A bibliometric study. JOURNAL OF OPTOMETRY 2022; 15:53-59. [PMID: 32907788 PMCID: PMC8712593 DOI: 10.1016/j.optom.2020.07.007] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Revised: 07/14/2020] [Accepted: 07/25/2020] [Indexed: 06/11/2023]
Abstract
PURPOSE To analyze the state of scientific publications in multifocal contact lenses field through a bibliometric study. METHODS The database used to carry out the study was SCOPUS and contained the descriptors "multifocal contact lens", "bifocal contact lenses", "progressive contact lenses" and "presbyopia contact lenses", limited to the fields of title, keywords and abstract. The indicators applied in this research were: doubling time and annual growth rate, Price's transience index, Lotka's law of scientific productivity, and Bradford's zones. RESULTS A total of 346 articles were published between 1960 and 2019. The growth in the number of publications matches the exponential adjustment slightly better (R = 0.53). The duplication time was 13.2 years. The productivity level is focused on articles with an average number of authors of just 2.06 per article. The Bradford core was formed by two journals, Optometry and Vision Science and Eye and Contact Lens. CONCLUSIONS Research on multifocal contact lenses has exponential growth, without evidence of having reached a saturation point. The main countries in scientific production in this field are the United States and Australia.
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Affiliation(s)
| | | | - Marina Martin
- Universidad Europea de Madrid. Faculty of Biomedical and Health Sciences. Madrid, Spain.
| | - Cesar Villa-Collar
- Universidad Europea de Madrid. Faculty of Biomedical and Health Sciences. Madrid, Spain.
| | - Francisco Javier Povedano-Montero
- Faculty of Optics and Optometry, Complutense University of Madrid, Hospital 12 de Octubre Research Institute (i+12), Neurology Unit, Madrid, Spain.
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Hiraoka T, Kiuchi G, Hiraoka R, Kotsuka J, Kinoshita Y, Oshika T. Comparison of visual performance between extended depth of focus contact lens and single-vision contact lens in eyes with monofocal intraocular lens. Jpn J Ophthalmol 2021; 65:803-809. [PMID: 34350536 DOI: 10.1007/s10384-021-00862-4] [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: 03/16/2021] [Accepted: 06/28/2021] [Indexed: 11/24/2022]
Abstract
PURPOSE To assess the visual performance of extended depth of focus (EDF) contact lenses (CL) in eyes that had undergone monofocal intraocular lens (IOL) implantation, and compare that between EDF and single-vision (SV) contact lenses. STUDY DESIGN Prospective, randomized, crossover study METHODS: Seventeen patients implanted with monofocal IOLs were enrolled. The study was conducted using 1dayPure EDOF as a test CL and 1dayPure moisture (both SEED Co., Ltd.) as a control CL. Binocular visual acuity from far to near distances, photopic and mesopic contrast sensitivity (with and without glare), and stereopsis were evaluated after wearing the two kinds of CLs in random order. The obtained results were compared between the EDF and SV CLs. RESULTS Binocular visual acuity at 0.3, 0.4, 0.7, 1, and 5 m was 0.24 ± 0.12, 0.07 ± 0.09, - 0.02 ± 0.08, - 0.02 ± 0.08, and - 0.06 ± 0.07 logMAR during the EDF CL wear, respectively, and 0.39 ± 0.17, 0.26 ± 0.15, 0.04 ± 0.12, - 0.02 ± 0.08, and - 0.09 ± 0.09 during the SV CL wear, respectively. The EDF CL showed better results than the SV CL at 0.3, 0.4, and 0.7 m (p < 0.05). There were no significant differences in contrast sensitivity between the EDF and SV CLs at 1.5 cycles per degree under all conditions; however, the sensitivity of the EDF CL was generally worse than that of the SV CL from the middle to high spatial frequencies. Stereopsis at 40 cm was significantly better in the EDF CL wear than in the SV CL wear (p < 0.05). CONCLUSIONS The EDF CL substantially improved visual acuity at near to intermediate distances in IOL-implanted eyes. However, far visual acuity decreased under low-contrast conditions, and contrast sensitivity slightly declined at the middle to high spatial frequencies.
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Affiliation(s)
- Takahiro Hiraoka
- Department of Ophthalmology, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki, 305-8575, Japan.
| | - Gaku Kiuchi
- Department of Ophthalmology, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki, 305-8575, Japan
| | - Reia Hiraoka
- Department of Ophthalmology, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki, 305-8575, Japan
| | - Junko Kotsuka
- Department of Ophthalmology, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki, 305-8575, Japan
| | - Yumiko Kinoshita
- Department of Ophthalmology, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki, 305-8575, Japan
| | - Tetsuro Oshika
- Department of Ophthalmology, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki, 305-8575, Japan
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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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Weng R, Naduvilath T, Philip K, Chen X, Sankaridurg P. Exploring non-adherence to contact lens wear schedule: Subjective assessments and patient related factors in children wearing single vision and myopia control contact lenses. Cont Lens Anterior Eye 2020; 44:94-101. [PMID: 33288408 DOI: 10.1016/j.clae.2020.11.015] [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] [Received: 08/17/2020] [Revised: 11/25/2020] [Accepted: 11/27/2020] [Indexed: 12/27/2022]
Abstract
PURPOSE To determine factors associated with non-adherence to contact lens wear schedule involving single vision and myopia control contact lenses in children. METHODS Data from 379 children enrolled in a prospective, double masked, randomized clinical trial, aged 8-13 years, cycloplegic spherical equivalent of -0.75 to -3.50D and wearing either: single vision silicone hydrogel (SiH) CL (control lens); two anti-myopia SiH CL that incorporated relative plus in the central and periphery in a stepped manner (test lens I and II); and two extended depth of focus hydrogel CL (test lens III and IV) was considered. A questionnaire was administered to the participants at every scheduled visit and gathered information on days of wear/week and subjective assessments of ocular comfort and visual quality on an analog scale of 1-10.Participants were categorized as "Adherent" when lens wear was ≥ 6 days/week or "Non-adherent" when lens wear ≤ 5 days/week. Categorized adherence data was summarized as a percentage across visits for each CL type. Differences between the two groups were analyzed using linear mixed model. RESULTS For the control lens, 79.6 % participants were adherent as compared to 63.7%-74.6% with test lenses (p=0.026). Non-adherence was greater in those that discontinued (p<0.001). Subjective ratings of visual quality for static and dynamic tasks were lower with non-adherent wearers and more variable between visits. Ocular comfort was also poorer in non-adherent wearers irrespective of lens material or lens design. Male gender, lower baseline myopia, lower high contrast visual acuity and esophoria were associated with a higher risk of non-adherence. CONCLUSIONS The study identified a wide range of factors associated with non-adherence to lens wear schedule. Paying specific attention to these factors when evaluating patients for CL wear and taking steps to ensure satisfaction in lens wear may promote longer term continuation of wear.
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Affiliation(s)
- Rebecca Weng
- Brien Holden Vision Institute, Sydney, New South Wales, Australia.
| | - Thomas Naduvilath
- Brien Holden Vision Institute, Sydney, New South Wales, Australia; School of Optometry and Vision Science, University of New South Wales, Sydney, New South Wales, Australia
| | - Krupa Philip
- Brien Holden Vision Institute, Sydney, New South Wales, Australia
| | - Xiang Chen
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Centre, Sun Yet Sen University, Guangzhou, China
| | - Padmaja Sankaridurg
- Brien Holden Vision Institute, Sydney, New South Wales, Australia; School of Optometry and Vision Science, University of New South Wales, Sydney, New South Wales, Australia
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Visual function, ocular surface integrity and symptomatology of a new extended depth-of-focus and a conventional multifocal contact lens. Cont Lens Anterior Eye 2020; 44:101384. [PMID: 33243587 DOI: 10.1016/j.clae.2020.11.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Revised: 11/09/2020] [Accepted: 11/10/2020] [Indexed: 11/22/2022]
Abstract
PURPOSE To evaluate visual function, ocular surface integrity and dry eye symptoms with an extended depth-of-focus (EDOF) design and a conventional multifocal (MF) contact lens (CL) after 15 days of wear. METHODS A crossover single mask randomised clinical trial was conducted including 30 presbyopes who used an EDOF and a conventional MF CL (Biofinity MF) for 15 days each. Defocus curves, depth-of-focus range, contrast sensitivity (CS) under photopic and mesopic conditions (with and without glare) and subjective perception of halos and glare were evaluated. The ocular surface was evaluated through non-invasive Keratograph tear breakup time (NIKBUT), averaged tear breakup time (NIKBUT-avg), tear meniscus height (TMH), bulbar and limbal redness, and conjunctival and corneal staining. Dry eye symptoms were assessed with the OSDI questionnaire. RESULTS No statistically significant differences were found for defocus curves or depth-of-focus between the two CLs (both p > 0.05). Subjective perception of halos and glare was not significantly different between CLs. Statistically significant differences were observed for CS under mesopic conditions for low spatial frequencies (p = 0.008). None of the CL produced significant changes in NIKBUT, NIKBUT-avg, TMH or redness. No change in conjunctival staining was observed in 76.7 % and 73.3 % of participants for EDOF and Biofinity MF, respectively. No change in corneal staining was observed in 86.7 % and 83.3 % of participants for EDOF and Biofinity MF, respectively. No changes were observed in the symptomatology measured with OSDI questionnaire (p > 0.05). CONCLUSIONS Both CL for presbyopia offer good visual quality, preserve the ocular surface integrity and provide the patient with similar symptomatology levels after 15 days of lens wear.
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Visual Performance of Daily-disposable Multifocal Soft Contact Lenses: A Randomized, Double-blind Clinical Trial. Optom Vis Sci 2019; 95:1096-1104. [PMID: 30451806 DOI: 10.1097/opx.0000000000001311] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
SIGNIFICANCE The present study highlights the differences between modern daily-disposable multifocal soft contact lenses to assist eye care practitioners in fitting presbyopic contact lens wearers. PURPOSE The purpose of this study was to compare visual performance of three daily-disposable multifocal contact lenses. METHODS Presbyopes (n = 72) wore 1-Day Acuvue Moist Multifocal, BioTrue ONEday for Presbyopia, and Dailies AquaComfort Plus Multifocal for 1 week in a prospective, randomized, double-blind, crossover clinical trial. After 1 week, high- and low-contrast visual acuities (HCVA, LCVA) were measured between 6 m and 40 cm and stereopsis at 40 cm. Subjective performance was assessed with 1- to 10-point rating scales for clarity, ghosting, driving vision, vision stability, ease of focusing, overall vision satisfaction, and ocular comfort. Willingness to purchase was reported with categorical responses. Linear mixed models and χ tests were used for analysis, and level of significance was set at 5%. RESULTS BioTrue provided better HCVA and LCVA at distance than did Acuvue Moist (P ≤ .03). Subjectively, Acuvue Moist was rated lowest for distance clarity, distance ghosting, and driving vision (P ≤ .05). Acuvue Moist provided better HCVA at 70 to 40 cm and LCVA at 1 m to 40 cm than did BioTrue (P ≤ .01) and better LCVA at 1 m to 50 cm than did AquaComfort Plus (P ≤ .02). AquaComfort Plus also provided better HCVA and LCVA at 50 and 40 cm than did BioTrue (P ≤ .03). Acuvue Moist provided better stereopsis than did BioTrue (P = .02). Subjectively, BioTrue was rated lowest for near clarity (P ≤ .007) and lower than Acuvue Moist for intermediate clarity and near ghosting (P ≤ .04). No other differences were found between lenses (P > .05). CONCLUSIONS BioTrue had better distance performance compared with near, whereas Acuvue Moist performed conversely. AquaComfort Plus performed reasonably overall.
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Vision Performance and Accommodative/Binocular Function in Children Wearing Prototype Extended Depth-of-Focus Contact Lenses. Eye Contact Lens 2019; 45:260-270. [PMID: 30601291 DOI: 10.1097/icl.0000000000000570] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
OBJECTIVE To assess two prototype contact lenses (CLs) that extend depth of focus through deliberate manipulation of multiple spherical aberration terms (extended depth-of-focus [EDOF]) for visual performance, accommodative and binocular function, and objective static near refraction against a single-vision (SV) CL. METHOD This was a prospective, randomized, cross-over, single-masked (participant) clinical trial in which 16 myopic children wore 2 prototype CLs (EDOFL/EDOFH) designed for presbyopes and a SV CL, each for one week. Measurements comprised monocular and binocular high-contrast visual acuity (HCVA: 6 m, 40 cm), binocular low-contrast visual acuity (LCVA: 6 m), contrast sensitivity (CS: 6 m), phorias (3 m, 33 cm), monocular-accommodative facility (33 cm), and objective static refraction (spherical equivalent M) at zero, -3, and -5 D vergences. Measurements were taken 10 min after lens insertion. Subjective response was assessed using take-home questionnaires comprising vision clarity (distance/intermediate/near), vision quality (haloes at night/ghosting), vision stability when moving (playing sport/using stairs), and comfort. RESULTS Single vision was significantly better than both EDOF CLs for monocular HCVA, LCVA, and CS (6 m); vision clarity (distance), ghosting (P≤0.040), and EDOFL for binocular HCVA (6 m, P=0.047). M was significantly closer to the ideal objective static refraction at -3 and -5 D vergences (P≤0.004) with both EDOF compared with SV CLs. There were no differences between CLs for any other variable (P≥0.169). CONCLUSION Extended depth-of-focus CLs caused minimal disruption to the accommodative and binocular system compared with SV CLs when worn by myopic children. Future EDOF designs for children should reduce the difference between SV for distance vision and vision quality while maintaining the same performance for intermediate and near.
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Sankaridurg P, Bakaraju RC, Naduvilath T, Chen X, Weng R, Tilia D, Xu P, Li W, Conrad F, Smith EL, Ehrmann K. Myopia control with novel central and peripheral plus contact lenses and extended depth of focus contact lenses: 2 year results from a randomised clinical trial. Ophthalmic Physiol Opt 2019; 39:294-307. [PMID: 31180155 PMCID: PMC6851825 DOI: 10.1111/opo.12621] [Citation(s) in RCA: 97] [Impact Index Per Article: 19.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2018] [Accepted: 05/14/2019] [Indexed: 11/28/2022]
Abstract
PURPOSE We aimed to determine myopia control efficacy with novel contact lenses (CL) that (1) reduced both central and peripheral defocus, and (2) provided extended depth of focus with better global retinal image quality for points on, and anterior to, the retina and degraded for points posterior to the retina. METHODS Children (n = 508, 8-13 years) with cycloplegic spherical equivalent (SE) -0.75 to -3.50D were enrolled in a prospective, double blind trial and randomised to one of five groups: (1) single vision, silicone hydrogel (SH) CL; (2) two groups wearing SH CL that imposed myopic defocus across peripheral and central retina (test CL I and II; +1.00D centrally and +2.50 and +1.50 for CL I and II at 3 mm semi-chord respectively); and (3) two groups wearing extended depth of focus (EDOF) hydrogel CL incorporating higher order aberrations to modulate retinal image quality (test CL III and IV; extended depth of focus of up to +1.75D and +2.50D respectively). Cycloplegic autorefraction and axial length (AL) measurements were conducted at six monthly intervals. Compliance to lens wear was assessed with a diary and collected at each visit. Additionally, subjective responses to various aspects of lens wear were assessed. The trial commenced in February 2014 and was terminated in January 2017 due to site closure. Myopia progression over time between groups was compared using linear mixed models and where needed post hoc analysis with Bonferroni corrections conducted. RESULTS Myopia progressed with control CL -1.12 ± 0.51D/0.58 ± 0.27 mm for SE/AL at 24 months. In comparison, all test CL had reduced progression with SE/AL ranging from -0.78D to -0.87D/0.41-0.46 mm at 24 months (AL: p < 0.05 for all test CL; SE p < 0.05 for test CL III and IV) and represented a reduction in axial length elongation of about 22% to 32% and reduction in spherical equivalent of 24% to 32%. With test CL, a greater slowing ranging from 26% to 43% was observed in compliant wearers (≥6 days per week; Control CL: -0.64D/0.30 mm and -1.14D/0.58 mm vs test CL: -0.42D to -0.47D/0.12-0.18 mm and -0.70 to -0.81D/0.19-0.25 mm at 12 and 24 months respectively). CONCLUSIONS Contact lenses that either imposed myopic defocus at the retina or modulated retinal image quality resulted in a slower progression of myopia with greater efficacy seen in compliant wearers. Importantly, there was no difference in the myopia control provided by either of these strategies.
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Affiliation(s)
- Padmaja Sankaridurg
- Brien Holden Vision Institute, Sydney, Australia.,School of Optometry and Vision Science, University of New South Wales, Sydney, Australia
| | - Ravi C Bakaraju
- Brien Holden Vision Institute, Sydney, Australia.,School of Optometry and Vision Science, University of New South Wales, Sydney, Australia
| | - Thomas Naduvilath
- Brien Holden Vision Institute, Sydney, Australia.,School of Optometry and Vision Science, University of New South Wales, Sydney, Australia
| | - Xiang Chen
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Centre, Sun Yet Sen University, Guangzhou, China
| | - Rebecca Weng
- Brien Holden Vision Institute, Sydney, Australia
| | - Daniel Tilia
- Brien Holden Vision Institute, Sydney, Australia
| | - Pauline Xu
- Brien Holden Vision Institute, Sydney, Australia
| | - Wayne Li
- Brien Holden Vision Institute, Sydney, Australia
| | | | - Earl L Smith
- College of Optometry, University of Houston, Houston, USA
| | - Klaus Ehrmann
- Brien Holden Vision Institute, Sydney, Australia.,School of Optometry and Vision Science, University of New South Wales, Sydney, Australia
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The Relationship between Visual Acuity, Subjective Vision, and Willingness to Purchase Simultaneous-image Contact Lenses. Optom Vis Sci 2019; 96:283-290. [DOI: 10.1097/opx.0000000000001359] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Zhu Q, Liu Y, Tighe S, Zhu Y, Su X, Lu F, Hu M. Retardation of Myopia Progression by Multifocal Soft Contact Lenses. Int J Med Sci 2019; 16:198-202. [PMID: 30745799 PMCID: PMC6367526 DOI: 10.7150/ijms.30118] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/21/2018] [Accepted: 12/07/2018] [Indexed: 12/13/2022] Open
Abstract
Myopia is an important public health problem due to its prevalence and significant public health cost. Elevating levels of myopia increase the risk of vision impairment, and therefore, high myopia has become one of the main causes of untreatable vision loss throughout the world due to its irreversible complications. At present, many options for slowing progression of myopia have already been proposed and evaluated such as progressive addition of executive bifocal spectacle lenses, peripheral defocusing lenses, overnight orthokeratology, pharmacological agents such as atropine eye drops, and multifocal soft contact lenses (MFSCLs). Use of MFSCLs has especially increased in recent years due to the growing demand to slow myopia progression during patient's adolescent growth period to avoid pathological myopia in adulthood. Compared with the other traditional methods of controlling myopia, MFSCLs allow myopic patients to better maintain their clear visual quality and slow myopia progression. In this manuscript, we aim to review the basics of myopia, recent advances in contact lenses to control myopia with emphasis on MFSCLs, define the elements for proper MFSCL fittings (such as pupil size, aberrations, accommodation and centering), discuss the potential rebound effect after discontinuation of contact lenses, and future directions for improvements of contact lenses for the control of myopia.
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Affiliation(s)
- Qin Zhu
- Department of Ophthalmology, Fourth Affiliated Hospital of Kunming Medical University (the Second People's Hospital of Yunnan Province); Yunnan Eye Institute; Key Laboratory of Yunnan Province for the Prevention and Treatment of ophthalmology (2017DG008); Provincial Innovation Team for Cataract and Ocular Fundus Disease, The Second People's Hospital of Yunnan Province (2017HC010); Expert Workstation of Yao Ke (2017IC064), Kunming 650021, China
| | - Yongsong Liu
- Yan'An Hospital of Kunming City, Kunming 650051, China
| | - Sean Tighe
- Tissue Tech, Inc., Ocular Surface Center, and Ocular Surface Research & Education Foundation, Miami, FL, 33173 USA
| | - Yingting Zhu
- Tissue Tech, Inc., Ocular Surface Center, and Ocular Surface Research & Education Foundation, Miami, FL, 33173 USA
| | - Xuanbo Su
- Department of Ophthalmology, Fourth Affiliated Hospital of Kunming Medical University (the Second People's Hospital of Yunnan Province); Yunnan Eye Institute; Key Laboratory of Yunnan Province for the Prevention and Treatment of ophthalmology (2017DG008); Provincial Innovation Team for Cataract and Ocular Fundus Disease, The Second People's Hospital of Yunnan Province (2017HC010); Expert Workstation of Yao Ke (2017IC064), Kunming 650021, China
| | - Fabing Lu
- Department of Ophthalmology, Fourth Affiliated Hospital of Kunming Medical University (the Second People's Hospital of Yunnan Province); Yunnan Eye Institute; Key Laboratory of Yunnan Province for the Prevention and Treatment of ophthalmology (2017DG008); Provincial Innovation Team for Cataract and Ocular Fundus Disease, The Second People's Hospital of Yunnan Province (2017HC010); Expert Workstation of Yao Ke (2017IC064), Kunming 650021, China
| | - Min Hu
- Department of Ophthalmology, Fourth Affiliated Hospital of Kunming Medical University (the Second People's Hospital of Yunnan Province); Yunnan Eye Institute; Key Laboratory of Yunnan Province for the Prevention and Treatment of ophthalmology (2017DG008); Provincial Innovation Team for Cataract and Ocular Fundus Disease, The Second People's Hospital of Yunnan Province (2017HC010); Expert Workstation of Yao Ke (2017IC064), Kunming 650021, China
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Comparison of Extended Depth-of-Focus Prototype Contact Lenses With the 1-Day ACUVUE MOIST MULTIFOCAL After One Week of Wear. Eye Contact Lens 2018; 44 Suppl 2:S157-S163. [DOI: 10.1097/icl.0000000000000430] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Diec J, Tilia D, Thomas V, Bakaraju RC. Predicting Short-Term Subjective Vision Performance of Contact Lenses Used in Myopia Control. Eye Contact Lens 2018; 44:308-315. [PMID: 29210828 DOI: 10.1097/icl.0000000000000460] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
OBJECTIVE To investigate whether initial assessment of contact lenses prescribed for myopia control (MC) predicts short-term visual performance. METHOD Retrospective analysis of 43 participants in a double-masked, randomized, cross-over trial wearing at least one lens: single-vision (SV) lens (1-DAY ACUVUE MOIST) or MC lenses (MiSight or Proclear Multifocal-Distance +2.00D). Participants completed questionnaires at the fitting visit, a take-home questionnaire (THQ) 3 days after fitting and finally at the assessment visit (≥5 days after fitting). Questions comprised vision clarity and lack of ghosting (distance, intermediate, near at day/night time); vision stability; driving vision; overall vision satisfaction and comfort (1-10 scale, 1-point steps); and willingness to purchase based on vision and MC benefit of lens (yes/no response). Visual acuity was measured at fitting and assessment visits. RESULTS Vision clarity (intermediate and near) was significantly worse at assessment compared with fitting while wearing MC lenses (P<0.001), as was overall vision satisfaction (P<0.001), comfort (P<0.001), and vision stability (P=0.001) while wearing either SV or MC lenses. Participants willing to purchase at assessment visit was 84% with SV and 36% with MC lenses, increasing to 88% (SV, P=1.00) and 61% (MC, P<0.001) if the lenses slowed myopia progression. Visual acuity was no different with either MC or SV lenses at fitting or assessment (P≥0.251). CONCLUSION Initial performance at fitting did not predict short-term performance for SV or MC lenses. A significant increase in willingness to purchase if lenses slowed myopia progression was observed while wearing MC lenses. Educating patients on the benefits might increase acceptability of MC lenses.
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Affiliation(s)
- Jennie Diec
- Brien Holden Vision Institute (J.D., D.T., V.T., R.C.B.), Sydney, Australia; and School of Optometry and Vision Sciences (D.T., R.C.B.), Sydney, Australia
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Bakaraju RC, Ehrmann K, Ho A. Extended depth of focus contact lenses vs. two commercial multifocals: Part 1. Optical performance evaluation via computed through-focus retinal image quality metrics. JOURNAL OF OPTOMETRY 2018; 11:10-20. [PMID: 28606456 PMCID: PMC5777930 DOI: 10.1016/j.optom.2017.04.003] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2016] [Revised: 02/12/2017] [Accepted: 04/21/2017] [Indexed: 05/20/2023]
Abstract
PURPOSE To compare the computed optical performance of prototype lenses designed using deliberate manipulation of higher-order spherical aberrations to extend depth-of-focus (EDOF) with two commercial multifocals. METHODS Emmetropic, presbyopic, schematic eyes were coupled with prototype EDOF and commercial multifocal lenses (Acuvue Oasys for presbyopia, AOP, Johnson & Johnson & Air Optix Aqua multifocal, AOMF, Alcon). For each test configuration, the through-focus retinal image quality (TFRIQ) values were computed over 21 vergences, ranging from -0.50 to 2.00D, in 0.125D steps. Analysis was performed considering eyes with three different inherent aberration profiles: five different pupils and five different lens decentration levels. RESULTS Except the LOW design, the AOP lenses offered 'bifocal' like TFRIQ performance. Lens performance was relatively independent to pupil and aberrations but not centration. Contrastingly, AOMF demonstrated distance centric performance, most dominant in LOW followed by MED and HIGH designs. AOMF lenses were the most sensitive to pupil, aberrations and centration. The prototypes demonstrated a 'lift-off' in the TFRIQ performance, particularly at intermediate and near, without trading performance at distance. When compared with AOP and AOMF, EDOF lenses demonstrated reduced sensitivity to pupil, aberrations and centration. CONCLUSION With the through focus retinal image quality as the gauge of optical performance, we demonstrated that the prototype EDOF designs were less susceptible to variations in pupil, inherent ocular aberrations and decentration, compared to the commercial designs. To ascertain whether these incremental improvements translate to a clinically palpable outcome requires investigation through human trials.
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Affiliation(s)
- Ravi C Bakaraju
- Brien Holden Vision Institute, Sydney, Australia; School of Optometry and Vision Science, University of New South Wales, Sydney, Australia.
| | - Klaus Ehrmann
- Brien Holden Vision Institute, Sydney, Australia; School of Optometry and Vision Science, University of New South Wales, Sydney, Australia
| | - Arthur Ho
- Brien Holden Vision Institute, Sydney, Australia; School of Optometry and Vision Science, University of New South Wales, Sydney, Australia
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Bakaraju RC, Tilia D, Sha J, Diec J, Chung J, Kho D, Delaney S, Munro A, Thomas V. Extended depth of focus contact lenses vs. two commercial multifocals: Part 2. Visual performance after 1 week of lens wear. JOURNAL OF OPTOMETRY 2018; 11:21-32. [PMID: 28619486 PMCID: PMC5777928 DOI: 10.1016/j.optom.2017.04.001] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2016] [Revised: 02/18/2017] [Accepted: 04/21/2017] [Indexed: 05/20/2023]
Abstract
PURPOSE To compare the visual performance of prototype contact lenses designed via deliberate manipulation of higher-order spherical aberrations to extend-depth-of-focus with two commercial multifocals, after 1 week of lens wear. METHODS In a prospective, participant-masked, cross-over, randomized, 1-week dispensing clinical-trial, 43 presbyopes [age: 42-63 years] each wore AIROPTIX Aqua multifocal (AOMF), ACUVUE OASYS for presbyopia (AOP) and extended-depth-of-focus prototypes (EDOF) appropriate to their add requirements. Measurements comprised high-contrast-visual-acuity (HCVA) at 6m, 70cm, 50cm and 40cm; low-contrast-visual-acuity (LCVA) and contrast-sensitivity (CS) at 6m and stereopsis at 40cm. A self-administered questionnaire on a numeric-rating-scale (1-10) assessed subjective visual performance comprising clarity-of-vision and lack-of-ghosting at various distances during day/night-viewing conditions and overall-vision-satisfaction. RESULTS EDOF was significantly better than AOMF and AOP for HCVA averaged across distances (p≤0.038); significantly worse than AOMF for LCVA (p=0.021) and significantly worse than AOMF for CS in medium and high add-groups (p=0.006). None of these differences were clinically significant (≤2 letters). EDOF was significantly better than AOMF and AOP for mean stereoacuity (36 and 13 seconds-of-arc, respectively: p≤0.05). For clarity-of-vision, EDOF was significantly better than AOP at all distances and AOMF at intermediate and near (p≤0.028). For lack-of-ghosting averaged across distances, EDOF was significantly better than AOP (p<0.001) but not AOMF (p=0.186). EDOF was significantly better than AOMF and AOP for overall-vision-satisfaction (p≤0.024). CONCLUSIONS EDOF provides better intermediate and near vision performance than either AOMF or AOP with no difference for distance vision after 1 week of lens wear.
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Affiliation(s)
- Ravi C Bakaraju
- Brien Holden Vision Institute, Sydney, Australia; School of Optometry and Vision Science, University of New South Wales, Sydney, Australia.
| | - Daniel Tilia
- Brien Holden Vision Institute, Sydney, Australia; School of Optometry and Vision Science, University of New South Wales, Sydney, Australia
| | - Jennifer Sha
- Brien Holden Vision Institute, Sydney, Australia
| | - Jennie Diec
- Brien Holden Vision Institute, Sydney, Australia
| | - Jiyoon Chung
- Brien Holden Vision Institute, Sydney, Australia
| | - Danny Kho
- Brien Holden Vision Institute, Sydney, Australia
| | | | - Anna Munro
- Brien Holden Vision Institute, Sydney, Australia
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Tilia D, Munro A, Chung J, Sha J, Delaney S, Kho D, Thomas V, Ehrmann K, Bakaraju RC. Short-term comparison between extended depth-of-focus prototype contact lenses and a commercially-available center-near multifocal. JOURNAL OF OPTOMETRY 2017; 10:14-25. [PMID: 27161603 PMCID: PMC5219826 DOI: 10.1016/j.optom.2016.04.003] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2015] [Revised: 04/01/2016] [Accepted: 04/01/2016] [Indexed: 05/29/2023]
Abstract
PURPOSE To compare the visual performance of prototype contact lenses which extend depth-of-focus (EDOF) by deliberate manipulation of multiple higher-order spherical aberration terms and a commercially-available center-near lens (AIR OPTIX Aqua Multifocal, AOMF). METHODS This was a prospective, cross-over, randomized, single-masked (participant), short-term clinical trial where 52 participants (age 45-70 years) were stratified as low, medium or high presbyopes and wore EDOF and AOMF on different days. Objective measures comprised high and low contrast visual acuity (HCVA/LCVA, logMAR), and contrast sensitivity (log units) at 6m; HCVA at 70cm, 50cm and 40cm and stereopsis (seconds of arc) at 40cm. HCVA at 70cm, 50cm and 40cm were measured as "comfortable acuity" rather than conventional resolution acuity. Subjective measures comprised clarity-of-vision and ghosting at distance, intermediate and near, overall vision satisfaction and ocular comfort (1-10 numeric rating scale) and lens purchase (yes/no response). Statistical analysis included repeated measures ANOVA, paired t-tests and McNemar's test. RESULTS Significant differences between lens types were independent of strata (p≥0.119). EDOF was significantly better than AOMF for HCVA at 40cm (0.42±0.18 vs. 0.48±0.22, p=0.024), stereopsis (98±88 vs. 141±114, p<0.001), clarity-of-vision at intermediate (8.5±1.6 vs. 7.7±1.9, p=0.006) and near (7.3±2.5 vs. 6.2±2.5, p=0.005), lack-of-ghosting (p=0.012), overall vision satisfaction (7.5±1.7 vs. 6.4±2.2, p<0.001) and ocular comfort (9.0±1.0 vs. 8.3±1.7, p=0.002). Significantly more participants chose to only-purchase EDOF (33% vs. 6%, p=0.003).). There were no significant differences between lens types for any objective measure at 6m or clarity-of-vision at distance (p≥0.356). CONCLUSIONS EDOF provides better intermediate and near vision performance in presbyopes than AOMF with no difference for distance vision during short-term wear.
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Affiliation(s)
- Daniel Tilia
- The Brien Holden Vision Institute, Sydney, NSW 2052, Australia; School of Optometry and Vision Science, The University of New South Wales, Sydney, NSW 2052, Australia
| | - Anna Munro
- The Brien Holden Vision Institute, Sydney, NSW 2052, Australia
| | - Jiyoon Chung
- The Brien Holden Vision Institute, Sydney, NSW 2052, Australia
| | - Jennifer Sha
- The Brien Holden Vision Institute, Sydney, NSW 2052, Australia
| | - Shona Delaney
- The Brien Holden Vision Institute, Sydney, NSW 2052, Australia
| | - Danny Kho
- The Brien Holden Vision Institute, Sydney, NSW 2052, Australia
| | - Varghese Thomas
- The Brien Holden Vision Institute, Sydney, NSW 2052, Australia
| | - Klaus Ehrmann
- The Brien Holden Vision Institute, Sydney, NSW 2052, Australia; School of Optometry and Vision Science, The University of New South Wales, Sydney, NSW 2052, Australia
| | - Ravi Chandra Bakaraju
- The Brien Holden Vision Institute, Sydney, NSW 2052, Australia; School of Optometry and Vision Science, The University of New South Wales, Sydney, NSW 2052, Australia.
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Short-Term Visual Performance of Novel Extended Depth-of-Focus Contact Lenses. Optom Vis Sci 2016; 93:656. [DOI: 10.1097/opx.0000000000000897] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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