1
|
Pérez-Sanz L, Charbel C, Poyales F, Garzón N. Optical and aberrometric evaluation of a new enhanced monofocal intraocular lens with isofocal optic design. Ophthalmic Physiol Opt 2024; 44:584-592. [PMID: 38349231 DOI: 10.1111/opo.13287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 01/29/2024] [Accepted: 01/30/2024] [Indexed: 04/08/2024]
Abstract
PURPOSE To evaluate the optical and aberrometric outcomes of an enhanced monofocal intraocular lens (ISOPure) compared with those of a standard monofocal lens (MicroPure) having the same platform and material. METHODS A prospective, comparative and randomised clinical study. A total of 28 eyes of 28 patients were randomly assigned to either group. Monocular visual acuity (VA) was measured at distance and intermediate under photopic and mesopic conditions. Aberrometry was analysed for 3.0-, 4.0-, 4.5- and 5.0 mm pupils. The contrast sensitivity defocus curve was measured for 3.0- and 4.5-mm pupils, while the modulation transfer function (MTF) and Strehl ratio (SR) were assessed with a double-pass system. All measurements were performed monocularly 3 months after surgery. RESULTS No significant differences were found for distance VA. Under photopic conditions, intermediate VA was better with the ISOPure lens, while no significant differences were found between the lenses under mesopic conditions. Internal and total aberrations were higher for the ISOPure lens. No significant differences were found for corneal aberrations. Additionally, both the contrast sensitivity defocus curve and optical quality showed similar behaviour for each lens, with the MTF cut-off frequency exceeding 30 c/deg in both cases. CONCLUSION The isofocal ISOPure lens enhanced intermediate VA without affecting distance VA under photopic conditions. Moreover, there were no significant differences in visual quality between the ISOPure and MicroPure lenses, despite the former exhibiting higher internal and total aberrations than the monofocal model.
Collapse
Affiliation(s)
- Lidia Pérez-Sanz
- Optometry and Vision Department, Faculty of Optics and Optometry, Complutense University of Madrid, Madrid, Spain
- Miranza IOA, Madrid, Spain
| | - Carla Charbel
- Optometry and Vision Department, Faculty of Optics and Optometry, Complutense University of Madrid, Madrid, Spain
| | | | - Nuria Garzón
- Optometry and Vision Department, Faculty of Optics and Optometry, Complutense University of Madrid, Madrid, Spain
| |
Collapse
|
2
|
Garzón N, Gómez-Pedrero JA, Albarrán-Diego C, Fernández-Núñez S, Villanueva Gómez-Chacón S, García-Montero M. Optical power profiles and aberrations of a non-diffractive wavefront-shaping extended depth of focus intraocular lens. Graefes Arch Clin Exp Ophthalmol 2024:10.1007/s00417-024-06469-y. [PMID: 38597962 DOI: 10.1007/s00417-024-06469-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2023] [Revised: 02/28/2024] [Accepted: 03/27/2024] [Indexed: 04/11/2024] Open
Abstract
PURPOSE This study is to evaluate the optical characteristics of a non-diffractive wavefront-shaping intraocular lens which incorporates surface refractive modifications for shaping the wavefront in order to achieve extended depth of focus (EDoF) and to assess whether the nominal power of this IOL influences the attainable add power. METHODS A commercially available optical bench NIMO TR1504 device (LAMBDA-X, Nivelles, Belgium) was employed to obtain full optical characterization of three non-diffractive EDoF intraocular lenses with + 10 D, + 20 D, and + 30 D powers. After NIMO measurements, data were computed using a custom-made MATLAB program (Mathworks, Inc., Natick, MA, USA) to evaluate the optical quality functions, such as the point spread function (PSF), wavefront profiles, and modulation transfer function (MTF) for two pupil sizes: 3 mm and 4.0 mm. RESULTS The non-diffractive EDoF intraocular lens showed a central serrated power profile behavior with additions of + 2.00 to + 2.50 D over the nominal power. Higher order aberrations were found to be driven mainly by the spherical aberration, with almost null comatic influence. Optical quality metrics showed good values, better for a 3 mm pupil compared to a 4.5 mm one, as expected. The three IOL powers tested showed a very similar behavior in terms of power and aberrometric profiles, with minimal to null differences related to the nominal power. CONCLUSION The non-diffractive wavefront-shaping EDoF intraocular lens achieves a near addition up to + 2.50 D aiming for an extended range of vision, almost independently of the base power.
Collapse
Affiliation(s)
- Nuria Garzón
- Dpto. de Optometría y Visión, Universidad Complutense de Madrid, Av. Arcos del Jalón 118, 28037, Madrid, Spain
| | | | - César Albarrán-Diego
- Dpto. de Óptica y Optometría y Ciencias de La Visión, Universitat de València, Doctor Moliner 50, Burjassot, 46100, Valencia, Spain.
| | - Sara Fernández-Núñez
- Dpto. de Óptica, Universidad Complutense de Madrid, Av. Arcos del Jalón 118, 28037, Madrid, Spain
| | | | - María García-Montero
- Dpto. de Optometría y Visión, Universidad Complutense de Madrid, Av. Arcos del Jalón 118, 28037, Madrid, Spain
| |
Collapse
|
3
|
Pérez-Sanz L, Vega F, Azor-Morón JA, Cuellar F, Millán MS, Garzón N. Tolerance to residual astigmatism of an isofocal intraocular lens. Graefes Arch Clin Exp Ophthalmol 2024; 262:1169-1180. [PMID: 37950754 DOI: 10.1007/s00417-023-06305-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Revised: 10/12/2023] [Accepted: 10/23/2023] [Indexed: 11/13/2023] Open
Abstract
PURPOSE To evaluate the impact of residual astigmatism on the optical and visual performance of an enhanced-monofocal isofocal intraocular lens (EM Isopure, BVI medical, Belgium) compared to a monofocal one (Micropure, BVI medical, Belgium). METHODS Laboratory investigation and prospective, comparative and randomized clinical study. Optical quality was assessed on an optical bench for 2.0, 3.0, and 4.5 mm pupils. The effect of residual astigmatism was investigated from through-focus images recorded with increasing amounts of regular positive astigmatism induced with a deformable mirror. To evaluate the impact of residual astigmatism, 28 eyes of 28 patients were randomly assigned to either group. Residual astigmatism was induced with positive and negative cylinder lenses at 90 and 180°. Visual acuity (VA) was measured at each step. RESULTS The optical performance of both IOLs was quite similar for 2.0 and 3.0 mm pupils. For 4.5-mm pupil, the EM Isopure showed a significant reduction of its optical quality in comparison with the monofocal IOL. When visual performance was evaluated, no statistically significant differences were found for any power of induced astigmatism. More differences were found when positive induced astigmatism was compared within each group, and VA was better when the astigmatism was induced at 180° vs. 90°. The greatest differences were found for and induced positive astigmatism of + 1.50D (p = 0.009 for Isopure and p = 0.023 for Micropure). CONCLUSIONS The tolerance to residual astigmatism of the EM Isopure lens is similar to that of a reference monofocal lens with pupils up to 3.5 mm.
Collapse
Affiliation(s)
- Lidia Pérez-Sanz
- Optometry and Vision Department, Faculty of Optics and Optometry, Complutense University of Madrid, Avda. Arcos de Jalón 118, 28037, Madrid, Spain.
- Miranza IOA. C/Galileo 104, 28003, Madrid, Spain.
| | - Fidel Vega
- Grupo de Óptica Aplicada y Procesado de Imagen (GOAPI), Department of Optics and Optometry, Universitat Politècnica de Catalunya BarcelonaTech, Violinista Vellsolà 37, 08222, Terrassa, Spain
| | - Juan A Azor-Morón
- Grupo de Óptica Aplicada y Procesado de Imagen (GOAPI), Department of Optics and Optometry, Universitat Politècnica de Catalunya BarcelonaTech, Violinista Vellsolà 37, 08222, Terrassa, Spain
| | - Fátima Cuellar
- Grupo de Óptica Aplicada y Procesado de Imagen (GOAPI), Department of Optics and Optometry, Universitat Politècnica de Catalunya BarcelonaTech, Violinista Vellsolà 37, 08222, Terrassa, Spain
| | - María S Millán
- Grupo de Óptica Aplicada y Procesado de Imagen (GOAPI), Department of Optics and Optometry, Universitat Politècnica de Catalunya BarcelonaTech, Violinista Vellsolà 37, 08222, Terrassa, Spain
| | - Nuria Garzón
- Optometry and Vision Department, Faculty of Optics and Optometry, Complutense University of Madrid, Avda. Arcos de Jalón 118, 28037, Madrid, Spain
| |
Collapse
|
4
|
García-Bella J, Burgos-Blasco B, Vidal-Villegas B, Garzón N, Villanueva C, García-Feijoo J. Visual and Refractive Outcomes after Bilateral Implantation of an Enhanced Monofocal IOL: a Prospective study. J Cataract Refract Surg 2024:02158034-990000000-00377. [PMID: 38350145 DOI: 10.1097/j.jcrs.0000000000001422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Accepted: 02/05/2024] [Indexed: 02/15/2024]
Abstract
PURPOSE To evaluate visual and refractive outcomes, as well as patient satisfaction after bilateral implantation of an enhanced monofocal intraocular lens (IOL) with emmetropia as a target refraction. SETTING San Carlos Hospital, Madrid, Spain. DESIGN Prospective, monocentric, non-comparative study. METHODS Adults 21 years or older suitable for cataract surgery and with corneal astigmatism < 1.50D were bilaterally implanted with the RayOne EMV IOL and followed up for 3-months. Outcomes measures included refraction, monocular and binocular uncorrected distance visual acuity (UDVA), corrected distance visual acuity (CDVA), uncorrected intermediate visual acuity (UIVA), distance corrected intermediate visual acuity (DCIVA), and defocus curve, aberrometry, and satisfaction. Visual symptoms were assessed using the CatQuest-9SF questionnaire. RESULTS 50 eyes of 25 patients were included. At Month-3, the mean manifest spherical equivalent was -0.39 ± 0.28 D, with all eyes within 1.00 D. Binocularly, uncorrected, at distance, 68% of patients could read ≤ 0.0 logMAR and 95% ≤ 0.2 logMAR; at intermediate 59% of patients could read ≤0.1 and 100% ≤ 0.2 logMAR. Mean monocular CDVA was -0.03 ± 0.06 logMAR and mean monocular DCIVA was 0.28 ± 0.07 logMAR. Binocular defocus curve demonstrated a visual acuity ≤ 0.2 logMAR over a 2 D range from +1.00 D to -1.25 D. Satisfaction was good in 96% of patients. CONCLUSION Bilateral implantation of an enhanced monofocal IOL with emmetropia as a target provided excellent binocular CDVA and good DCIVA, with a high level of satisfaction.
Collapse
Affiliation(s)
| | | | | | - Nuria Garzón
- . Faculty of Optics and Optometry. Complutense University Of Madrid, Madrid, Spain
| | - Celia Villanueva
- . Department of Ophthalmology. Clinico San Carlos Hospital, Madrid, Spain
- . Faculty of Optics and Optometry. Complutense University Of Madrid, Madrid, Spain
| | | |
Collapse
|
5
|
Salvador-Roger R, Albarrán-Diego C, Garzón N, García-Montero M, Muñoz G, Micó V, Esteve-Taboada JJ. Revisiting Javal's rule: a fresh and improved power vector approach according to age. Graefes Arch Clin Exp Ophthalmol 2024; 262:249-260. [PMID: 37552315 PMCID: PMC10805827 DOI: 10.1007/s00417-023-06195-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Revised: 07/19/2023] [Accepted: 07/30/2023] [Indexed: 08/09/2023] Open
Abstract
PURPOSE The scientific community has established Javal's rule as a model linking refractive (RA) and keratometric (KA) astigmatism since its appearance more than 100 years ago. The aim was to improve the accuracy of this relationship according to subject's age by applying the power vector analysis. Posterior corneal curvature has also been studied. METHODS The IOLMaster 700 optical biometer was used to measure the corneal thickness and the radius of curvature of the anterior and posterior corneal surfaces. Refractive error was determined by a non-cycloplegic subjective refraction process with trial lenses. Linear regression analyses were applied using J0 and J45 power vector components. An evaluation was carried out according to the subject's age resulting into eight regression relationships for each astigmatic vector component for each relationship. RESULTS A total of 2254 right eyes from 2254 healthy subjects were evaluated. A trend towards against-the-rule astigmatism (ATR) was found with aging, both for refractive astigmatism (RA) and keratometric astigmatism (KA), with 95.2% of subjects under 20 years old having with-the-rule (WTR) KA, and only 22.8% above 79 years old. The following regression equations were found between RA and KA: [Formula: see text] = 0.73 × [Formula: see text] - 0.18 (R = 0.78) and [Formula: see text] = 0.70 × [Formula: see text] + 0.04 (R = 0.69) and between RA and total corneal astigmatism (TCA): [Formula: see text] = 0.73 × [Formula: see text] + 0.13 (R=0.78) and [Formula: see text] = 0.70 × [Formula: see text] - 0.06 (R = 0.68) for the whole sample, but with sensible differences among age groups, both in the slope and in the intercept. CONCLUSION Ignoring the age of the subject when using Javal's rule could lead to an error in the final cylinder calculation that would increase in high astigmatisms. Applying this new power vector approach based on subject's age could improve the accuracy of the astigmatism prediction.
Collapse
Affiliation(s)
- Raquel Salvador-Roger
- Department of Optics and Optometry and Vision Sciences, University of Valencia, 46100, Burjassot, Valencia, Spain.
| | - César Albarrán-Diego
- Department of Optics and Optometry and Vision Sciences, University of Valencia, 46100, Burjassot, Valencia, Spain
| | - Nuria Garzón
- Department of Optometry and Vision, Universidad Complutense de Madrid, 28037, Madrid, Spain
| | - María García-Montero
- Department of Optometry and Vision, Universidad Complutense de Madrid, 28037, Madrid, Spain
| | - Gonzalo Muñoz
- Marqués de Sotelo Ophthalmological Clinic, 46002, Valencia,, Spain
- Baviera Castellón Ophthalmological Clinic, 12003, Castelló de la Plana, Spain
| | - Vicente Micó
- Department of Optics and Optometry and Vision Sciences, University of Valencia, 46100, Burjassot, Valencia, Spain
| | - José J Esteve-Taboada
- Department of Optics and Optometry and Vision Sciences, University of Valencia, 46100, Burjassot, Valencia, Spain
| |
Collapse
|
6
|
Pérez-Sanz L, Charbel C, Poyales F, Garzón N. Influence of isofocal intraocular lenses on objective refraction based on autorefraction and aberrometry. Graefes Arch Clin Exp Ophthalmol 2023; 261:2863-2872. [PMID: 37171601 DOI: 10.1007/s00417-023-06102-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 04/27/2023] [Accepted: 05/08/2023] [Indexed: 05/13/2023] Open
Abstract
PURPOSE To evaluate and compare the objective refractions obtained by autorefraction and aberrometry under different lighting conditions with an isofocal intraocular lens (Isopure, BVI medical, Liége, Belgium) compared to a monofocal control lens (Micropure, BVI medical, Liége, Belgium) with the same platform and material. METHODS Prospective, comparative and randomized study on patients undergoing cataract surgery and bilateral isofocal or monofocal IOL implantation. A total of 44 subjects were randomly assigned to either the isofocal group (n = 22) or the Micropure (n = 22). Manifest refraction (MR) was always performed under the same lighting conditions for all the patients. For objective refraction the autorefractor KR8800 and the aberrometer OPD-Scan III (Nidek Inc., Tokyo, Japan.) were used. For each eye included in the study, six result sets were collected: MR, AR (autorefraction measured with the autorefractor), WF-P and WF-M (Zernike-coefficients-based objective refraction, photopic and mesopic pupil size), OPD-C and OPD-M (autorefraction measured with the aberrometer in photopic and mesopic conditions). RESULTS The mean sphere for MR was 0.03 ± 0.32D for the Isopure group and 0.24 ± 0.22D for the monofocal group (p = 0.013). For the Isopure group, Friedman analysis showed statistically significant differences for sphere measured with WF-P (p = 0.035), WF-M (p = 0.018) and OPD-M (p = 0.000), and SE measured with OPD-M (p = 0.004). In the Micropure lens group, the Friedman analysis showed differences for all values studied (p < 0.05). Correlation coefficients showed that AR is the objective method with the strongest correlation values for all components of refraction for both groups. CONCLUSION The modification of the surfaces of the isofocal lens does not have a negative impact on the refraction obtained by AR compared to a standard monofocal intraocular lens.
Collapse
Affiliation(s)
| | - Carla Charbel
- Optometry and Vision Department, Faculty of Optics and Optometry, Complutense University of Madrid, Madrid, Spain
| | | | - Nuria Garzón
- Optometry and Vision Department, Faculty of Optics and Optometry, Complutense University of Madrid, Madrid, Spain
| |
Collapse
|
7
|
Pérez-Sanz L, Gonzalez-Fernandez V, Gómez-Pedrero JA, Albarrán-Diego C, García-Montero M, Garzón N. Optical and Clinical Outcomes of an Isofocal Intraocular Lens vs. a Monofocal Standard Lens. Life (Basel) 2023; 13:2001. [PMID: 37895383 PMCID: PMC10608665 DOI: 10.3390/life13102001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Revised: 09/23/2023] [Accepted: 09/28/2023] [Indexed: 10/29/2023] Open
Abstract
The aim of this study is to evaluate the results obtained on the optical bench and clinically with an isofocal lens (ISOPure, BVI medical, Belgium) to compare them to a standard monofocal one (MicroPure, BVI medical, Belgium). To do so, we have combined laboratory investigation and a prospective, comparative, and randomized clinical study. First, we have measured the wavefront of the two models studied using a NIMO TR1504 (Lambda-X, Belgium) deflectometer for three nominal powers: +10.00, +20.00 and +30.00 D. In the randomized study with 48 patients, half of them implanted with ISOPure and the other with MicroPure, we have measured visual acuities and contrast sensitivity under photopic and mesopic conditions. The optical bench results show that the isofocal lens presented higher power than the monofocal one, at the lens center, due to the spherical aberration (coefficients Z(4,0), Z(6,0) and Z(8,0)) induced by the greater asphericity of its design. The addition obtained depended on the nominal power, from +1.00 to +1.50 D. The results of the clinical study showed that the ISOPure lens presented better visual outcomes, which were statistically significant, at intermediate distance compared to the MicroPure lens (p-values of 0.014 and 0.022 for 80 and 60 cm, respectively) without decreasing the contrast sensitivity. Clinical outcomes were not affected by pupillary size. In conclusion, due to the increase in power at the lens center due to its highly aspherical design, the isofocal lens evaluated showed better intermediate vision than the monofocal one.
Collapse
Affiliation(s)
- Lidia Pérez-Sanz
- Optometry and Vision Department, Facultad de Óptica y Optometría, Universidad Complutense de Madrid, C/Arcos de Jalón, 118, 28037 Madrid, Spain; (L.P.-S.); (M.G.-M.); (N.G.)
- Miranza IOA, C/Galileo, 104, 28003 Madrid, Spain
| | - Veronica Gonzalez-Fernandez
- Optics Department, Facultad de Óptica y Optometría, Universidad Complutense de Madrid, C/Arcos de Jalón, 118, 28037 Madrid, Spain;
| | - José Antonio Gómez-Pedrero
- Optics Department, Facultad de Óptica y Optometría, Universidad Complutense de Madrid, C/Arcos de Jalón, 118, 28037 Madrid, Spain;
| | - César Albarrán-Diego
- Departament d’Òptica i Optometria i Ciències de la Visió, Facultat de Física, Universitat de València, C/Doctor Moliner, 46100 Burjassot, Spain;
| | - María García-Montero
- Optometry and Vision Department, Facultad de Óptica y Optometría, Universidad Complutense de Madrid, C/Arcos de Jalón, 118, 28037 Madrid, Spain; (L.P.-S.); (M.G.-M.); (N.G.)
| | - Nuria Garzón
- Optometry and Vision Department, Facultad de Óptica y Optometría, Universidad Complutense de Madrid, C/Arcos de Jalón, 118, 28037 Madrid, Spain; (L.P.-S.); (M.G.-M.); (N.G.)
| |
Collapse
|
8
|
Villanueva C, Viviano F, García-Montero M, Lorente-Velázquez A, Martínez-Alberquilla I, Garzón N. Forward-scattered and backward-scattered light in moderate keratoconus. Ophthalmic Physiol Opt 2023. [PMID: 36920155 DOI: 10.1111/opo.13126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Revised: 02/17/2023] [Accepted: 03/01/2023] [Indexed: 03/16/2023]
Abstract
INTRODUCTION To evaluate the backscattered light, objective scatter index (OSI) and retinal straylight in patients with moderate keratoconus and healthy control subjects. METHODS A prospective observational study was developed with 33 patients in the moderate-keratoconus group (KC) and 34 in the non-keratoconus group (NKC). Corneal densitometry was obtained using Scheimpflug corneal tomography and measurements were expressed in grayscale units (GSU) over four zones within a 12.00 mm diameter around the corneal apex. A straylight meter was used to determine the amount of intraocular straylight under scotopic conditions, and the straylight parameter (LOG(s)) and test duration were recorded. The Optical Quality Analysis System based on the double-pass technique determined the OSI value. RESULTS Significant differences were observed between the KC and NKC groups for corneal densitometry (except in the 6-10 mm zone), OSI and retinal straylight. A moderate and significant correlation was found between OSI and retinal straylight LOG(s) (r = 0.52, p = 0.002). Weaker and non-significant correlations were found between corneal densitometry and the other parameters analysed (i.e., OSI, retinal straylight LOG(s) and retinal straylight times). CONCLUSIONS Backscattered light, retinal straylight and the OSI show clear differences between healthy eyes and those with moderate KC. The changes present in the stages of KC evaluated in the current study (stages II and III according to the Amsler-Krumeich classification) might alter the scattering of the light entering the eye.
Collapse
Affiliation(s)
- Celia Villanueva
- Optometry and Vision Department, Faculty of Optics and Optometry, Universidad Complutense de Madrid, Madrid, Spain.,Ophthalmology Department, Hospital Clínico San Carlos, Madrid, Spain
| | - Francesco Viviano
- Optometry and Vision Department, Faculty of Optics and Optometry, Universidad Complutense de Madrid, Madrid, Spain
| | - María García-Montero
- Optometry and Vision Department, Faculty of Optics and Optometry, Universidad Complutense de Madrid, Madrid, Spain
| | - Amalia Lorente-Velázquez
- Optometry and Vision Department, Faculty of Optics and Optometry, Universidad Complutense de Madrid, Madrid, Spain
| | - Irene Martínez-Alberquilla
- Optometry and Vision Department, Faculty of Optics and Optometry, Universidad Complutense de Madrid, Madrid, Spain
| | - Nuria Garzón
- Optometry and Vision Department, Faculty of Optics and Optometry, Universidad Complutense de Madrid, Madrid, Spain
| |
Collapse
|
9
|
Poyales F, Garzón N, Rico L, Zhou Y, Millán MS, Vega F. Comparison of visual performance between two aspheric monofocal intraocular lens models. Clin Exp Optom 2023; 106:29-35. [PMID: 34875207 DOI: 10.1080/08164622.2021.2009737] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
CLINICAL RELEVANCE It is important to distinguish between visual acuity, optical quality and quality of vision when outcomes obtained with intraocular lenses are evaluated. These parameters, that includeobjective and subjective tests, should be assessed to obtain results that are not biased. BACKGROUND To assess the difference in visual and optical quality between two monofocal intraocular lens models. METHODS : This was a prospective, parallel and randomised clinical study conducted at Miranza IOA, a private clinic in Madrid, Spain. Sixty patients were implanted bilaterally, 30 per group, with two aspheric IOLs with induced spherical aberration of -0.27 μm for Group A and -0.20 μm for Group B. Visual outcomes obtained at 1 and 3 months after surgery included both uncorrected (UCVA) and corrected monocular distance visual acuity (DCVA), objective scattering index (OSI), modulation transfer function (MTF) cut-off, Strehl Ratio (SR), contrast sensitivity defocus curve (CSDC), intraocular lens spherical aberration (SA), and longitudinal chromatic aberration of the eye. Activity limitations in daily life were assessed using CatQuest-9SF questionnaire. RESULTS There were statistically significant differences for DCVA (0.04 LogMAR; p = .008) and SR (0.03; p = .003) between groups. Outcomes related to CSDC showed statistically significant differences for vergences between -0.50 D and +1.00 D (3 mm pupil) and for vergences of 0.00 D and +0.50 D (4.5 mm pupil) between groups. Overall, Group A showed better results regarding visual and optical quality, including a lower longitudinal chromatic aberration result in comparison to Group B. Patient satisfaction evaluated with CatQuest-9SF showed that Group A achieved better outcomes, although the differences were statistically significant only for the 'Reading text on television' item (p = 0.027). CONCLUSIONS Both intraocular lens models showed excellent quantity of vision, optical and visual quality as well as high patient satisfaction. Despite this, the the Group A model provided slightly better outcomes than the Group B model.
Collapse
Affiliation(s)
| | - Nuria Garzón
- Ophthalmology Department, Miranza IOA, Madrid, Spain.,Departamento Optometría y Visión, Universidad Complutense de Madrid, Madrid, Spain
| | - Laura Rico
- Ophthalmology Department, Miranza IOA, Madrid, Spain
| | - Ying Zhou
- Ophthalmology Department, Miranza IOA, Madrid, Spain
| | - María S Millán
- Departament d'Òptica i, Universitat Politècnica de Catalunya-BarcelonaTech, Spain
| | - Fidel Vega
- Departament d'Òptica i, Universitat Politècnica de Catalunya-BarcelonaTech, Spain
| |
Collapse
|
10
|
Chikri YM, Alonso JML, Garzón N, Gonzalez‐Perez M. development of
e‐Health
technologies for big data analysis in contact lens. Acta Ophthalmol 2022. [DOI: 10.1111/j.1755-3768.2022.0371] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Youssef Marrakchi Chikri
- Faculty of Optics and Optometry University Complutense of Madrid, Optometry and Vision Madrid Spain
- Alain Afflelou Lisbon Portugal
| | - Jose Manuel Lopez Alonso
- Faculty of Optics and Optometry University Complutense of Madrid, Optometry and Vision Madrid Spain
| | - Nuria Garzón
- Faculty of Optics and Optometry University Complutense of Madrid, Optometry and Vision Madrid Spain
| | - Mariano Gonzalez‐Perez
- Faculty of Optics and Optometry University Complutense of Madrid, Optometry and Vision Madrid Spain
| |
Collapse
|
11
|
Calvo-Sanz JA, Poyales F, Zhou Y, Arias-Puente A, Garzón N. Agreement between the biometric measurements used to calculate the size of the implantable collamer lenses measured with four different technologies. Indian J Ophthalmol 2022; 70:1586-1592. [PMID: 35502031 PMCID: PMC9333023 DOI: 10.4103/ijo.ijo_2217_21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Abstract
Purpose: To evaluate the agreement between the biometric measurements used to calculate the size of the implantable collamer lenses (ICL) with different technologies: swept-source optical coherence tomography, spectral domain optical coherence tomography, and Scheimpflug tomography. Methods: This retrospective observational study included subjects undergoing refractive surgery with posterior chamber phakic IOL implantation to correct their myopia. The anterior chamber depth (ACD) and the horizontal white to white (WTW) or the angle to angle (ATA) distance were measured with the following four devices: the IOLMaster 700 biometer (Carl Zeiss Meditec, Jena, Germany), based on swept-source optical coherence tomography; the Cirrus and Visante optical coherence tomographs (Carl Zeiss Meditec) based on low-coherence interferometry; and the Pentacam rotating Scheimpflug camera (Oculus, Wetzlar, Germany). Results: In the horizontal corneal diameter measurements, there were statistically significant differences between Pentacam–IOLMaster 700 pair (P < 0.001) and Pentacam–Visante pair (P < 0.001). WTW from CIRRUS showed the lowest correlation when paired with Pentacam and IOLMaster 700 (R2 = 0.452 and 0.385 for Visante and R2 = 0.494 and 0.426 for Cirrus). Regarding the linear correlation of the ACD measurements, all pairs of devices were statistically significant and all of them showed a very good correlation index. Conclusion: There is a good agreement between the different devices under evaluation for ACD measurements. As for WTW, the values measured with the different devices showed large discrepancies with low correlation levels, especially when comparing the tomographs with the other devices under evaluation.
Collapse
Affiliation(s)
- Jorge A Calvo-Sanz
- INCIVI, Ana Teresa, 24, Optometry and Opthalmology Department, Madrid, Spain
| | - Francisco Poyales
- Miranza IOA, Madrid, Optometry and Opthalmology Department, Madrid, Spain
| | - Ying Zhou
- Miranza IOA, Madrid, Optometry and Opthalmology Department, Madrid, Spain
| | | | - Nuria Garzón
- Miranza IOA, Madrid, Optometry and Opthalmology Department; Faculty of Optics and Optometry, Complutense University, Madrid, Spain
| |
Collapse
|
12
|
Albarrán-Diego C, Poyales F, López-Artero E, Garzón N, García-Montero M. Interocular biometric parameters comparison measured with swept-source technology. Int Ophthalmol 2021; 42:239-251. [PMID: 34417946 PMCID: PMC8803707 DOI: 10.1007/s10792-021-02020-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Accepted: 08/14/2021] [Indexed: 11/29/2022]
Abstract
PURPOSE In the event that any ocular parameter involved in the calculation of intraocular lens power could not be properly measured in one eye, it is important to know whether clinically relevant differences between both eyes can be expected. The aim of this work is to evaluate the symmetry of interocular biometric parameters. METHODS This was a prospective, cross-sectional study involving 4090 subjects. Patients underwent consecutive swept-source optical biometry performed with an IOLMaster 700 (Carl Zeiss Meditec AG, Jena, Germany). The biometric parameters that were evaluated were: axial length (AL), mean anterior curvature (Rm), anterior chamber depth (ACD), crystalline lens thickness (LT), central corneal thickness (CCT) and white-to-white (WTW). The Chang-Waring chord distance (CWC-D) and the Chang-Waring chord angle (CWC-A) were also evaluated. RESULTS There is an excellent correlation between both eyes for almost all the biometric parameters under study, with the exception of the CWC. Agreement for AL was better for eyes shorter than 24 mm. The linearity of the OD-vs-OS relationship can be correctly assumed for all parameters (Cusum test: p > 0.05 in all cases). CONCLUSION There are no clinically significant interocular differences for the biometric parameters under study, although for all of them, except the LT, statistically significant differences did arise. In the case of AL, moderate differences can be expected in eyes larger than 24 mm.
Collapse
Affiliation(s)
- César Albarrán-Diego
- Optics, Optometry and Vision Science Department, Faculty of Physics, University of Valencia, Dr Moliner 50, 46100, Burjassot, Spain
| | | | | | - Nuria Garzón
- , Miranza OA Madrid. C/Galileo 104, 28003, Madrid, Spain. .,Faculty of Optics and Optometry, Complutense University of Madrid, c/Arcos de Jalón, 118, 28037, Madrid, Spain.
| | - María García-Montero
- Faculty of Optics and Optometry, Complutense University of Madrid, c/Arcos de Jalón, 118, 28037, Madrid, Spain
| |
Collapse
|
13
|
Vega F, Millán MS, Gil MA, Garzón N. Optical Performance of a Monofocal Intraocular Lens Designed to Extend Depth of Focus. J Refract Surg 2021; 36:625-632. [PMID: 32901831 DOI: 10.3928/1081597x-20200710-01] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Accepted: 07/09/2020] [Indexed: 11/20/2022]
Abstract
PURPOSE To test the performance of a new monofocal intraocular lens, intended to extend depth of focus (Tecnis Eyhance, ICB00; Johnson & Johnson Vision, Inc) (ICB-IOL), in comparison to a standard monofocal IOL (Tecnis 1-piece, ZCB00; Johnson & Johnson Vision, Inc) (ZCB-IOL) of the same platform and material. METHODS Assessment of the optical performance of the two IOLs was made in vitro using an optical test bench with a model eye. The spherical aberration, modulation transfer function (MTF), and area under the MTF (MTFa) were obtained for pupil sizes ranging from 2 to 5 mm. Through-focus MTFa curves between -3.00 and +1.00 diopters (D) were obtained with three pupil sizes (2, 3, and 4.5 mm). Halo formation was also assessed for both lenses. RESULTS The ICB-IOL had slightly worse optical quality at its best focus (ie, lower MTF scores at distance vision) and more negative spherical aberration than the ZCB-IOL for pupils ranging from 2 to 3 mm. The maximum of the through-focus MTFa curve of the ICB-IOL with a 2-mm pupil shifted to a myopic defocus of -0.50 D. For larger pupils (≥ 3.5 mm), there were no differences in spherical aberration, MTF scores, and halo energy between the two lenses. CONCLUSIONS The new ICB-IOL is a modified monofocal lens with 0.50 D of additional power in its central 2-mm zone and more negative spherical aberration values, which induce a myopic shift of the maximum of optical quality and could improve intermediate vision. For pupils larger than 3.5 mm, there were no differences between IOLs. The new ICB-IOL design would produce photic phenomena comparable to a standard IOL. [J Refract Surg. 2020;36(9):625-632.].
Collapse
|
14
|
Garzón N, Poyales F, García-Montero M, Vega F, Millán MS, Albarrán-Diego C. Impact of Lens Material on Objective Refraction in Eyes with Trifocal Diffractive Intraocular Lenses. Curr Eye Res 2021; 47:51-61. [PMID: 34161750 DOI: 10.1080/02713683.2021.1946563] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Purpose: Compare subjective (Rx) and objective (ObjRx) refractions outcomes with two autorefractors models and an aberrometer in eyes implanted with a hydrophobic trifocal IOL (FineVision POD F GF, Physiol, Liége, Belgium) and a hydrophilic one (FineVision POD F, Physiol, Liége, Belgium).Methods: Prospective comparative cohort study, with 100 subjects randomly assigned to either the POD F group (n = 50) or the POD F-GF group (n = 50). Postoperative eye examinations at 1-month visit included seven result sets, one for each assessment method: Rx, AR (automated refraction measured with the autorefractor KR8800), WF-P (Zernike-coefficients-based objective refraction, photopic pupil size), WF-M (Zernike-coefficients-based objective refraction, mesopic pupil size), WF-4 (Zernike-coefficients-based objective refraction, 4 mm pupil), OPD-C (automated refraction measured with the aberrometer OPD in the central pupil/photopic conditions), and OPD-M (automated refraction measured with the aberrometer OPD under mesopic conditions).Results: Mean differences between ObjRx and Rx reached statistical significance for sphere and spherical equivalent (M) only with OPD-C in the POD F-GF group. All ObjRx methods showed significant differences with Rx in the POD F group, with some values differing by more than 0.50 D (-0.58 D in M for the WF-P). Bland Altman plots showed better agreement for the astigmatic components, and for sphere and spherical equivalents in both IOL groups measured with AR and OPD-M.Conclusions: None of the objective methods of refraction evaluated in this study were as reliable as the subjective refraction, irrespective of the lens material, but POD F-GF ObjRx seems to differ less with Rx than POD F ObjRx values.
Collapse
Affiliation(s)
- Nuria Garzón
- Miranza Group, Madrid, Spain.,Optometry and Vision Department, Faculty of Optics and Optometry, Complutense University of Madrid, Madrid, Spain
| | | | - María García-Montero
- Miranza Group, Madrid, Spain.,Optometry and Vision Department, Faculty of Optics and Optometry, Complutense University of Madrid, Madrid, Spain
| | - Fidel Vega
- Departament d'Òptica i Optometria, Universitat Politécnica de Catalunya, BarcelonaTech, Terrassa, Spain
| | - María Sagrario Millán
- Departament d'Òptica i Optometria, Universitat Politécnica de Catalunya, BarcelonaTech, Terrassa, Spain
| | - César Albarrán-Diego
- Optics, Optometry and Vision Science Department, Faculty of Physics, University of Valencia, Burjassot, Spain.,Clínica Baviera Castellón, Castellón de la Plana, Spain.,Clínica Oftalmológica Dr Gonzalo Muñoz, Valencia, Spain
| |
Collapse
|
15
|
López-Artero E, Garzón N, Rodríguez-Vallejo M, García-Montero M. Feasibility of optical quality analysis system for the objective assessment of accommodation insufficiency: a phase 1 study. J Optom 2021; 14:287-294. [PMID: 32800453 PMCID: PMC8258129 DOI: 10.1016/j.optom.2020.06.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/11/2020] [Revised: 06/23/2020] [Accepted: 06/29/2020] [Indexed: 06/11/2023]
Abstract
PURPOSE To assess differences in a new objective metric obtained with a double-pass technique between a group with accommodation insufficiency (AI) and a control group and to explore the diagnostic capabilities of this new tool in comparison to conventional procedures. METHODS Retrospective cross-sectional case-control phase 1 study. Two groups with ages ranging from 8 to 18 years were recruited: AI and control group. The diagnostic criterion of AI was based on monocular accommodative amplitude (AA), 2 D below Hofstetter's calculation for minimum AA, and monocular accommodative facility (MAF), failing with minus lens and cut-off at ≤ 6 cycles per minute. Accommodative response with a double pass device (HD Analyzer, Visiometrics) was measured, performing an evaluation from +1.00 D to -3.50D (-0.5D steps), offering the width of the profile at 50% (WP) in minutes of arc. RESULTS Differences were found between groups for the AA, MAF and MEM retinoscopy (p < 0.0001, p < 0.001, p = 0.037). The discriminative capacity of MEM retinoscopy for AI diagnosis was significant and the cut-off that maximized the sensitivity and specificity was > 0.5 D. Considering WP 50% in different points, the discriminative AI diagnosis capacities for the points of 2.0 D and 2.50 D were significant (ROC-AUC 0.78; p = 0.03 and p = 0.02). CONCLUSIONS Double-pass system metric differed between patients with AI and control group, therefore the aim of a Phase I study was achieved. Further steps with higher sample sizes are required to evidence if the system really provides any advantage versus conventional methods in the diagnosis of AI.
Collapse
Affiliation(s)
| | - Nuria Garzón
- Miranza Group, Madrid, C/Galileo 104, 28003 Madrid, Spain; Optics II Department, Faculty of Optics and Optometry, Complutense University of Madrid, Madrid, Spain.
| | | | - María García-Montero
- Miranza Group, Madrid, C/Galileo 104, 28003 Madrid, Spain; Optics II Department, Faculty of Optics and Optometry, Complutense University of Madrid, Madrid, Spain
| |
Collapse
|
16
|
Vinas M, Gonzalez-Ramos AM, Aissati S, Garzón N, Poyales F, Dorronsoro C, Marcos S. Longitudinal Chromatic Aberration in Patients Implanted With Trifocal Diffractive Hydrophobic IOLs. J Refract Surg 2020; 36:804-810. [DOI: 10.3928/1081597x-20200930-01] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Accepted: 09/28/2020] [Indexed: 11/20/2022]
|
17
|
Poyales F, Pérez R, López-Brea I, Zhou Y, Rico L, Garzón N. Comparison of Visual Performance and Patient Satisfaction Outcomes with Two Trifocal IOLs with Similar Optical Design but Different Materials. Clin Ophthalmol 2020; 14:3237-3247. [PMID: 33116374 PMCID: PMC7569070 DOI: 10.2147/opth.s273641] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Accepted: 09/25/2020] [Indexed: 11/23/2022] Open
Abstract
Purpose To compare clinical outcomes in a prospective trial of cataract surgery patients bilaterally implanted with two different trifocal intraocular lenses (IOLs) with very similar optical designs but consisting of different IOL materials (hydrophobic and hydrophilic). Patients and Methods Fifty-one patients (102 eyes) were randomized to receive trifocal IOLs bilaterally – FineVision POD F (hydrophilic) or FineVision POD F GF (hydrophobic) (both PhysIOL, Liége, Belgium). The follow-up period was 3 months. Outcome measurements included uncorrected distance (UDVA), corrected distance (CDVA), distance-corrected intermediate (DCIVA), and distance-corrected near visual acuity (DCNVA), refraction, negative dysphotopsia, optical quality of vision, contrast sensitivity under photopic and mesopic conditions, halometry (discrimination index), and patient-reported outcomes. Results At the final study visit, mean (SD) values for binocular UDVA, CDVA, DCIVA (80 cm), and DCNVA (40 cm) were −0.01 (0.06), −0.04 (0.04), 0.09 (0.10), and 0.10 (0.09) logMAR, respectively, for POD F, and 0.01 (0.08), −0.03 (0.03), 0.08 (0.1), and 0.13 (0.11) respectively, for POD F GF. Defocus assessments showed a continuous curve with a functional range of visual acuity (≤0.15 logMAR) from ~30 cm to infinity in both groups. The discrimination index was >0.85 for all patients, and both groups showed similar contrast sensitivity under photopic and mesopic conditions. At 3 months, no patient reported negative dysphotopsia, and high satisfaction rates were observed. Conclusion Clinical outcomes showed no significant difference between each lens when measured at 1 month and 3 months after implantation. This equally good clinical performance of hydrophilic and hydrophobic trifocal lenses allows the surgeon to choose the IOL material based on personal preferences or patients’ needs.
Collapse
Affiliation(s)
| | | | | | | | | | - Nuria Garzón
- Miranza IOA, Madrid, Spain.,Optometry and Vision Department, Universidad Complutense, Madrid, Spain
| |
Collapse
|
18
|
Poyales F, Poyales B, Medel D, López-Brea I, López-Artero E, Garzón N. The influence of surgeons and technicians on the learning curve of femtosecond-laser cataract surgery. J Optom 2020; 13:242-248. [PMID: 32009001 PMCID: PMC7520525 DOI: 10.1016/j.optom.2020.01.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 02/05/2019] [Revised: 01/02/2020] [Accepted: 01/07/2020] [Indexed: 06/10/2023]
Abstract
PURPOSE To demonstrate the influence of the surgeon's and the operating room (OR) technicians' experience upon the outcome of femtosecond laser-assisted cataract surgery (FLACS). MATERIALS AND METHODS Our study included 250 eyes from 156 patients who had undergone either cataract surgery or clear-crystalline-lens extraction and where capsulorhexis and lens fragmentation had been performed using the CATALYS® Precision System femtosecond platform (Abbott Medical Optics Inc., Santa Ana, CA, USA).The patients were operated either by an experienced surgeon in the use of femtosecond laser or by an inexperienced surgeon in that field and two technicians. The quantitative outcome measures were: Suction loss rate, vacuum time, number of consumables used by the patient and intraoperative complication rate. RESULTS Both for the experienced and the inexperienced surgeons, suction loss rates as well as vacuum time decreased progressively as time went by and more surgical procedures had been completed by that surgeon. For a given surgeon suction time decreased significantly, going from 137 to 99s, as the assisting technician gradually gained experience. The number of consumables used in each procedure by the experienced surgeon ranged from 1.10 (for the first 50 cases) to 1.02 from those initial cases onwards. Regarding intraoperative complications, they also decreased progressively as the number of procedures completed by the surgeon increased. CONCLUSIONS The experience of each team member involved in such procedures-be it surgeons or technicians-have an impact, to a greater or lesser extent, upon the surgery's outcome, as quantified by the outcome variables of choice.
Collapse
Affiliation(s)
| | | | - David Medel
- Miranza IOA Madrid, c/Galileo 104 Madrid, Spain
| | | | | | | |
Collapse
|
19
|
Remón L, Cabeza-Gil I, Calvo B, Poyales F, Garzón N. Biomechanical Stability of Three Intraocular Lenses With Different Haptic Designs: In Silico and In Vivo Evaluation. J Refract Surg 2020; 36:617-624. [PMID: 32901830 DOI: 10.3928/1081597x-20200713-02] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2019] [Accepted: 06/16/2020] [Indexed: 01/10/2023]
Abstract
PURPOSE To assess the biomechanical stability of three different marketed intraocular lenses (IOLs) with different haptic designs (four-loop IOL [Micro F FineVision model] and double C-loop IOL [POD F and POD FT models], all manufactured by PhysIOL), in silico (computer simulation) and in vivo (in the context of lens surgery). METHODS An in silico simulation investigation was performed using finite element modeling (FEM) software to reproduce the compression test defined by the International Organization for Standardization and in vivo implantation in patients in the context of lens surgery was evaluated 1 day and 3 months postoperatively. IOL decentration and rotation were tested. In addition, the stress and strains were analyzed with the finite element method. RESULTS In the in silico evaluation, the compression force for the POD F IOL was slightly lower than for the POD FT IOL and Micro F IOL for all compression diameters. The axial displacement was maximum for the POD FT IOL and the tilt, rotation, and lateral decentration were substantially lower than the acceptable tolerance limits established in ISO 11979-2. In the in vivo evaluation, a total of 45 eyes from 45 patients were selected, 15 eyes for each IOL model under assessment. Statistically significant differences were found between the Micro F and POD F IOLs for lateral decentration in x-direction (in absolute value) at 3 months postoperatively (P = .03). CONCLUSIONS Although statistically significant differences have been found when comparing the displacement, tilt, and rotation between the different lenses, these differences cannot be considered clinically relevant, which would suggest that all three IOL models yield excellent stability in those terms. FEM appears to be a powerful tool for numerical studies of the biomechanical properties of IOLs. [J Refract Surg. 2020;36(9):617-624.].
Collapse
|
20
|
Fernández J, Rodríguez-Vallejo M, Poyales F, Burguera N, Garzón N. New method to assess the accuracy of intraocular lens power calculation formulas according to ocular biometric parameters. J Cataract Refract Surg 2020; 46:849-856. [DOI: 10.1097/j.jcrs.0000000000000165] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
21
|
Armengol J, Garzón N, Vega F, Altemir I, Millán MS. Equivalence of two optical quality metrics to predict the visual acuity of multifocal pseudophakic patients. Biomed Opt Express 2020; 11:2818-2829. [PMID: 32499963 PMCID: PMC7249818 DOI: 10.1364/boe.388531] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2020] [Revised: 04/01/2020] [Accepted: 04/03/2020] [Indexed: 05/20/2023]
Abstract
This article studies the relationship between two metrics, the area under the modulation transfer function (MTFa) and the energy efficiency (EE), and their ability to predict the visual quality of patients implanted with multifocal intraocular lenses (IOLs). The optical quality of IOLs is assessed in vitro using two metrics, the MTFa and EE. We measured them for three different multifocal IOLs with parabolic phase profile using image formation, through-focus (TF) scanning, three R, G, B wavelengths, and two pupils. We analyzed the correlation between MTFa and EE. In parallel, clinical defocus curves of visual acuity (VA) were measured and averaged from sets of patients implanted with the same IOLs. An excellent linear correlation was found between the MTFa and EE for the considered IOLs, wavelengths and pupils (R2 > 0.9). We computed the polychromatic TF-MTFa, TF-EE, and derived mathematical relationships between each metrics and clinical average VA. MTFa and EE proved to be equivalent metrics to characterize the optical quality of the studied multifocal IOLs and also in terms of clinical VA predictability.
Collapse
Affiliation(s)
- Jesús Armengol
- Departament d’Òptica i Optometria, Universitat Politècnica de Catalunya, Barcelona Tech, Violinista Vellsolà 37, 08222 Terrassa, Spain
| | - Nuria Garzón
- Miranza IOA, Galileo 104, 28003 Madrid, Spain
- Optometry and Vision Department, UCM University, Arcos del Jalón 118, 28037 Madrid, Spain
| | - Fidel Vega
- Departament d’Òptica i Optometria, Universitat Politècnica de Catalunya, Barcelona Tech, Violinista Vellsolà 37, 08222 Terrassa, Spain
| | - Irene Altemir
- Miguel Servet University Hospital, Ophthalmology Department, Paseo Isabel La Católica, 1-3 50009 Zaragoza, Spain
| | - Maria S. Millán
- Departament d’Òptica i Optometria, Universitat Politècnica de Catalunya, Barcelona Tech, Violinista Vellsolà 37, 08222 Terrassa, Spain
| |
Collapse
|
22
|
Armengol J, Garzón N, Vega F, Altemir I, Millán MS. Correlation between polychromatic image quality metrics to predict visual acuity in pseudophakic patients. EPJ Web Conf 2020. [DOI: 10.1051/epjconf/202023812005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The optical quality of three multifocal intraocular lenses (MIOLs) was measured in vitro using the area under the modulation transfer function (MTFa) and energy efficiency (EE). We evaluated those metrics through-focus (TF) by axially scanning the image space with three wavelengths (R, G, B). High linear correlation between MTFa and EE was found for all cases. Correlations between optical in vitro results (polychromatic TF-MTFa and TF-EE) and clinical visual acuity (VA) defocus curves for the three MIOLs allowed us to derive mathematical expressions. Both metrics proved to be equivalent to predict postoperative VA.
Collapse
|
23
|
Garzón N, García-Montero M, López-Artero E, Poyales F, Albarrán-Diego C. Influence of trifocal intraocular lenses on standard autorefraction and aberrometer-based autorefraction. J Cataract Refract Surg 2019; 45:1265-1274. [DOI: 10.1016/j.jcrs.2019.04.017] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2018] [Revised: 04/16/2019] [Accepted: 04/17/2019] [Indexed: 10/26/2022]
|
24
|
Millán MS, Vega F, Poyales F, Garzón N. Clinical assessment of chromatic aberration in phakic and pseudophakic eyes using a simple autorefractor. Biomed Opt Express 2019; 10:4168-4178. [PMID: 31453002 PMCID: PMC6701557 DOI: 10.1364/boe.10.004168] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Revised: 06/28/2019] [Accepted: 06/28/2019] [Indexed: 06/10/2023]
Abstract
We describe a psychophysical method and a simple setup - an autorefractor with a Scheiner disc, sequentially illuminated with red and blue lights - for the clinical assessment of the longitudinal chromatic aberration (LCA) in phakic and pseudophakic patients. This method applies to the unaccommodated eye, even in the presence of positive or negative refractive errors and astigmatism. It measures the chromatic difference of refraction as an estimate of LCA. We built a proof of concept from inexpensive and off-the-shelf optomechanical components with which we obtained the preliminary clinical results presented in the paper. We considered one control group of phakic patients and three groups of pseudophakic patients with monofocal implants of different designs and materials. The results, satisfactory and consistent with those reported by other researchers in related works, demonstrate the method and system feasibility.
Collapse
Affiliation(s)
- María S. Millán
- Departament d’Òptica i Optometria, Universitat Politècnica de Catalunya, BARCELONATECH. ViolinistaVellsolà 37, 08222 Terrassa, Spain
| | - Fidel Vega
- Departament d’Òptica i Optometria, Universitat Politècnica de Catalunya, BARCELONATECH. ViolinistaVellsolà 37, 08222 Terrassa, Spain
| | | | - Nuria Garzón
- IOA Madrid, Innova Ocular. Galileo 104, 28003 Madrid, Spain
| |
Collapse
|
25
|
Pérez-Izquierdo R, Rodríguez-Vallejo M, Matamoros A, Martínez J, Garzón N, Poyales F, Fernández J. Influence of Preoperative Astigmatism Type and Magnitude on the Effectiveness of SMILE Correction. J Refract Surg 2019; 35:40-47. [DOI: 10.3928/1081597x-20181127-01] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2018] [Accepted: 11/26/2018] [Indexed: 11/20/2022]
|
26
|
Vega F, Millán MS, Garzón N, Altemir I, Poyales F, Larrosa JM. Visual acuity of pseudophakic patients predicted from in-vitro measurements of intraocular lenses with different design. Biomed Opt Express 2018; 9:4893-4906. [PMID: 30319910 PMCID: PMC6179423 DOI: 10.1364/boe.9.004893] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2018] [Revised: 07/26/2018] [Accepted: 08/03/2018] [Indexed: 05/09/2023]
Abstract
The optical quality of a set of IOLs (modeling set: one monofocal and two bifocals) was assessed through focus by the area under the modulation transfer function (MTFa) metric and related to the visual acuity (VA) defocus curves of pseudophakic patients implanted with said IOLs. A non-linear relationship between the MTFa and clinical VA was obtained with an asymptotic limit found to be the best VA achievable by the patients. Two mathematical fitting functions between clinical VA and MTFa were derived with high correlation coefficients (R2≥0.85). They were applied to the MTFa obtained from a different set of IOLs with advanced designs (trial set: one extended range of vision -ERV-, one trifocal ERV and one trifocal apodized) to predict VA versus defocus of patients implanted with these IOLs. Differences between the calculated VA and the clinical VA for both fitting models were within the standard deviation of the clinical measurements in the range of -3.00 D to 0.00 D defocus, thus proving the suitability of the MTFa metric to predict clinical VA performance of new IOL designs.
Collapse
Affiliation(s)
- Fidel Vega
- Departament d'Òptica i Optometria, Universitat Politècnica de Catalunya, BarcelonaTech, Violinista Vellsolà 37, 08222 Terrassa, Spain
| | - Maria S Millán
- Departament d'Òptica i Optometria, Universitat Politècnica de Catalunya, BarcelonaTech, Violinista Vellsolà 37, 08222 Terrassa, Spain
| | - Nuria Garzón
- IOA Madrid, Innova Ocular, Galileo 104, 28003 Madrid, Spain
| | - Irene Altemir
- Miguel Servet University Hospital, Ophthalmology Department, Paseo Isabel La Católica, 1-3 50009 Zaragoza, Spain
- Aragon Institute for Health Research (IIS Aragón), University of Zaragoza, Edificio CIBA, Planta 0 Avda. San Juan Bosco, 1-3 50009 Zaragoza, Spain
| | | | - Jose Manuel Larrosa
- Aragon Institute for Health Research (IIS Aragón), University of Zaragoza, Edificio CIBA, Planta 0 Avda. San Juan Bosco, 1-3 50009 Zaragoza, Spain
| |
Collapse
|
27
|
Poyales F, Garzón N, Pizarro D, Cobreces S, Hernández A. Stability and visual outcomes yielded by three intraocular trifocal lenses with same optical zone design but differing material or toricity. Eur J Ophthalmol 2018; 29:417-425. [PMID: 30198329 DOI: 10.1177/1120672118795065] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
PURPOSE To compare rotational stability, centration and visual outcomes provided by three trifocal lens models that have the same optical zone design but different material, composition, and/or toricity. METHODS The study included 78 patients with symmetric bilateral intraocular lens implantation. The lenses under evaluation were trifocal intraocular lenses made of hydrophilic acrylic material: a spherical lens 26% hydrophilic acrylic (POD FineVision), a similar lens but having a toric design (POD Toric FineVision), and a trifocal lens 25% hydrophilic acrylic material (FineVision/MicroF). Moreover, the lenses share the same optical zone design. The lenses' rotational stability and centration were measured by means of the PIOLET software, which relies on recording and image processing techniques to determine lens rotation and centration based on slit-lamp images. We also assessed patients' visual quality by means of 25, 40, and 80 cm VA tests. RESULTS The best centration results were achieved with the POD Toric FineVision model, although the differences were not statistically significant. As for lens rotation, it was below 5° in all cases under study. Regarding VA, all subjects attained at least 0.3 logMAR for far distance uncorrected VA, at 80 cm VA was about 0.2 logMAR, at 40 cm it was above 0.15 logMAR, and at 25 cm it was about 0.3 logMAR for both lens types. CONCLUSION All three intraocular lens models yield excellent visual results at far, near as well as intermediate distances. The POD FineVision and POD Toric FineVision models, with double C-loop design, yielded the best results centration-wise and rotation-wise. Differences had no clinical relevance.
Collapse
Affiliation(s)
| | | | - Daniel Pizarro
- 2 Department of Electronics, University of Alcalá, Madrid, Spain
| | | | - Adolfo Hernández
- 1 IOA Madrid Innova Ocular, Madrid, Spain.,2 Department of Electronics, University of Alcalá, Madrid, Spain
| |
Collapse
|
28
|
Garzón N, Rodríguez-Vallejo M, Carmona D, Calvo-Sanz JA, Poyales F, Palomino C, Zato-Gómez de Liaño MÁ, Fernández J. Comparing surgically induced astigmatism calculated by means of simulated keratometry versus total corneal refractive power. Eur J Ophthalmol 2018; 28:573-581. [DOI: 10.1177/1120672118757666] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Purpose: To evaluate surgically induced astigmatism as computed by means of either simulated keratometry (KSIM) or total corneal refractive power (TCRP) after temporal incisions. Methods: Prospective observational study including 36 right eyes undergoing cataract surgery. Astigmatism was measured preoperatively during the 3-month follow-up period using Pentacam. Surgically induced astigmatism was computed considering anterior corneal surface astigmatism at 3 mm with KSIM and considering both corneal surfaces with TCRP from 1 to 8 mm (TCRP3 for 3 mm). The eyes under study were divided into two balanced groups: LOW with KSIM astigmatism <0.90 D and HIGH with KSIM astigmatism ≥0.90 D. Resulting surgically induced astigmatism values were compared across groups and measuring techniques by means of flattening, steepening, and torque analysis. Results: Mean surgically induced astigmatism was higher in the HIGH group (0.31 D @ 102°) than in the LOW group (0.04 D @ 16°). The temporal incision resulted in a steepening in the HIGH group of 0.15 D @ 90°, as estimated with KSIM, versus 0.28 D @ 90° with TCRP3, but no significant differences were found for the steepening in the LOW group or for the torque in either group. Differences between KSIM- and TCRP3-based surgically induced astigmatism values were negligible in LOW group. Conclusion: Surgically induced astigmatism was considerably higher in the high-astigmatism group and its value was underestimated with the KSIM approach. Eyes having low astigmatism should not be included for computing the surgically induced astigmatism because steepening would be underestimated.
Collapse
Affiliation(s)
| | | | - David Carmona
- Hospital Universitario Quironsalud Madrid, Madrid, Spain
| | | | | | | | | | - Joaquín Fernández
- Department of Ophthalmology (Qvision), Vithas Virgen del Mar Hospital, Almería, Spain
- Department of Ophthalmology, Torrecárdenas Hospital Complex, Almería, Spain
| |
Collapse
|
29
|
Poyales F, Garzón N, Poyales C, Poyales B. Clinical Outcomes with a New Model of Extended Depth of Focus Intraocular Lens. ACTA ACUST UNITED AC 2018. [DOI: 10.4236/ojoph.2018.83020] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
30
|
Alba-Bueno F, Garzón N, Vega F, Poyales F, Millán MS. Patient-Perceived and Laboratory-Measured Halos Associated with Diffractive Bifocal and Trifocal Intraocular Lenses. Curr Eye Res 2017; 43:35-42. [PMID: 29161162 DOI: 10.1080/02713683.2017.1379541] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
PURPOSE To examine and assess the halos generated in distance vision by multifocal intraocular lenses (IOLs) using both in vitro objective and in vivo subjective methods. SETTING The objective method was carried out in the optics laboratory of the Applied Optics and Image Processing Group (Universitat Politècnica de Catalunya -Barcelona). The psychophysical and subjective methods were carried out in the Instituto de Oftalmología Avanzada Madrid Innova Ocular. DESIGN Optical bench results and prospective evaluation of consecutive cases. METHODS The IOLs examined were TECNIS®one-piece bifocals with addition powers of +4.00 D, +3.25 D, and +2.75 D and the trifocals AT-LISA-tri® and FineVision®. In the objective assessment, we examined halos around the far focus images of a pinhole formed by each IOL in an optical bench. For the in vivo study, we recruited 100 patients who had been bilaterally implanted one month earlier with the IOLs under study. Participants were subjected to psychophysical halometry (Halo v1.0) on the eye with better, distance-corrected, visual acuity and were required to subjectively grade halos by responding to the question "How much do halos bother you?" RESULTS The objective method revealed that the halo size increased with addition power and that the two trifocals gave rise to a double-halo pattern. Scores in the halometry also indicated a direct relationship between the halo size and addition power. The subjective results indicated fewer complaints about halos associated with the trifocal than bifocal IOLs. CONCLUSIONS The addition power of the tested IOLs affected both laboratory-measured and patient-perceived halos. Trifocal lenses generated fewer complaints about halos. Precise: Multifocal intraocular lenses (MIOLs) give rise to halos observed by patients under conditions of dim lighting. This study compares laboratory characterized halos generated by five MIOLs with patient-perceived halos.
Collapse
Affiliation(s)
- Francisco Alba-Bueno
- a Valles Ophthalmology Research (VOR) , Institute of Medical and Surgical Ophthalmology (OMIQ) , Barcelona , Spain.,b Applied Optics and Image Processing Group (GOAPI) , Universitat Politècnica de Catalunya (UPC BARCELONATECH) , Barcelona , Spain
| | | | - Fidel Vega
- b Applied Optics and Image Processing Group (GOAPI) , Universitat Politècnica de Catalunya (UPC BARCELONATECH) , Barcelona , Spain
| | | | - María S Millán
- b Applied Optics and Image Processing Group (GOAPI) , Universitat Politècnica de Catalunya (UPC BARCELONATECH) , Barcelona , Spain
| |
Collapse
|
31
|
Poyales F, Garzón N, Rozema JJ, Romero C, de Zárate BO. Stability of a Novel Intraocular Lens Design: Comparison of Two Trifocal Lenses. J Refract Surg 2017; 32:394-402. [PMID: 27304603 DOI: 10.3928/1081597x-20160428-04] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2015] [Accepted: 02/04/2016] [Indexed: 11/20/2022]
Abstract
PURPOSE To compare visual outcomes, rotational stability, and centration in a randomized controlled trial in patients undergoing cataract surgery who were bilaterally implanted with two different trifocal intraocular lenses (IOLs) with a similar optical zone but different haptic shape. METHODS Twenty-one patients (42 eyes) with cataract and less than 1.50 D of corneal astigmatism underwent implantation of one FineVision/MicoF IOL in one eye and one POD FineVision IOL in the contralateral eye (PhysIOL, Liège, Belgium) at IOA Madrid Innova Ocular, Madrid, Spain. IOL allocation was random. Outcome measures, all evaluated 3 months postoperatively, included monocular and binocular uncorrected distance (UDVA), corrected distance (CDVA), distance-corrected intermediate (DCIVA), and near (DCNVA) visual acuity (at 80, 40, and 25 cm) under photopic conditions, refraction, IOL centration, haptic rotation, dysphotopsia, objective quality of vision and aberration quantification, patient satisfaction, and spectacle independence. RESULTS Three months postoperatively, mean monocular UDVA, CDVA, DCIVA, and DCNVA (40 cm) under photopic conditions were 0.04 ± 0.07, 0.01 ± 0.04, 0.15 ± 0.11, and 0.16 ± 0.08 logMAR for the eyes implanted with the POD FineVision IOL and 0.03 ± 0.05, 0.01 ± 0.02, 0.17 ± 0.12, and 0.14 ± 0.08 logMAR for those receiving the FineVision/MicroF IOL. Moreover, the POD FineVision IOL showed similar centration (P> .05) and better rotational stability (P < .05) than the FineVision/MicroF IOL. Regarding halos, there was a minimal but statistically significant difference, obtaining better results with FineVision/MicroF. Full spectacle independence was reported by all patients. CONCLUSIONS This study revealed similar visual outcomes for both trifocal IOLs under test (POD FineVision and FineVision/MicroF). However, the POD FineVision IOL showed better rotational stability, as afforded by its design. [J Refract Surg. 2016;32(6):394-402.].
Collapse
|
32
|
Poyales F, Garzón N, Mendicute J, Illarramendi I, Caro P, Jáñez O, Argüeso F, López A. Corneal densitometry after photorefractive keratectomy, laser-assisted in situ keratomileusis, and small-incision lenticule extraction. Eye (Lond) 2017. [PMID: 28622316 DOI: 10.1038/eye.2017.107] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
PurposeThe aim of this study was to gain greater insight into the corneal densitometry changes occurring as a result of refractive surgery and to compare these changes across three widely used surgical techniques, namely, photorefractive keratectomy (PRK), laser-assisted in situ keratomileusis with a femtosecond laser (LASIK-FS), or ReLEx small-incision lenticule extraction (ReLEx SMILE).Patients and methodsThree hundred and thirty-six patients (184 male and 152 female patients) participated in this study. They were split into three groups according to the refractive surgery technique they had undergone: LASIK-FS (74 patients), PRK (153 patients), and ReLEx SMILE (109 patients). All participants underwent an exhaustive eye examination both before and after surgery. Pre- and postoperative corneal densitometry was measured using an Oculus Pentacam system.ResultsThe mean postoperative total corneal densitometry values were 16.53±1.94 for the LASIK-FS group, 15.53±1.65 for PRK, and 16.10±1.54 for ReLEx SMILE. When corneal densitometry was analyzed for specific corneal areas, the values corresponding to the 0-2, 2-6, and 6-10 mm annuli were similar across the three surgical techniques. The only region in which differences were found was the peripheral area (P<0.05), but these variations across techniques were not statistically significant.ConclusionsCorneal densitometry can be used as an objective metric to assess corneal response to refractive surgery, and to monitor patients over time. Corneal densitometry was not negatively affected by any of the refractive surgical procedures under evaluation.
Collapse
Affiliation(s)
| | | | | | | | - P Caro
- Innova Ocular, Madrid, Spain
| | - O Jáñez
- Innova Ocular, Madrid, Spain
| | | | - A López
- Innova Ocular, Madrid, Spain
| |
Collapse
|
33
|
Arriola-Villalobos P, Almendral-Gómez J, Garzón N, Ruiz-Medrano J, Fernández-Pérez C, Martínez-de-la-Casa JM, Díaz-Valle D. Agreement and clinical comparison between a new swept-source optical coherence tomography-based optical biometer and an optical low-coherence reflectometry biometer. Eye (Lond) 2016; 31:437-442. [PMID: 27834962 DOI: 10.1038/eye.2016.241] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2016] [Accepted: 09/07/2016] [Indexed: 12/22/2022] Open
Abstract
PurposeTo compare measurements taken using a swept-source optical coherence tomography-based optical biometer (IOLmaster 700) and an optical low-coherence reflectometry biometer (Lenstar 900), and to determine the clinical impacts of differences in their measurements on intraocular lens (IOL) power predictions.MethodsEighty eyes of 80 patients scheduled to undergo cataract surgery were examined with both biometers. The measurements made using each device were axial length (AL), central corneal thickness (CCT), aqueous depth (AQD), lens thickness (LT), mean keratometry (MK), white-to-white distance (WTW), and pupil diameter (PD). Holladay 2 and SRK/T formulas were used to calculate IOL power. Differences in measurement between the two biometers were determined using the paired t-test. Agreement was assessed through intraclass correlation coefficients (ICC) and Bland-Altman plots.ResultsMean patient age was 76.3±6.8 years (range 59-89). Using the Lenstar, AL and PD could not be measured in 12.5 and 5.25% of eyes, respectively, while IOLMaster 700 took all measurements in all eyes. The variables CCT, AQD, LT, and MK varied significantly between the two biometers. According to ICCs, correlation between measurements made with both devices was excellent except for WTW and PD. Using the SRK/T formula, IOL power prediction based on the data from the two devices were statistically different, but differences were not clinically significant.ConclusionsNo clinically relevant differences were detected between the biometers in terms of their measurements and IOL power predictions. Using the IOLMaster 700, it was easier to obtain biometric measurements in eyes with less transparent ocular media or longer AL.
Collapse
Affiliation(s)
- P Arriola-Villalobos
- Ophthalmology, Hospital Clínico San Carlos, Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdISSC), Madrid, Spain.,Patología ocular del envejecimiento, calidad visual y calidad de vida, Instituto de Salud Carlos III, Madrid, Spain
| | - J Almendral-Gómez
- Ophthalmology, Hospital Clínico San Carlos, Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdISSC), Madrid, Spain
| | - N Garzón
- Instituto de Oftalmología Avanzada, Madrid, Spain
| | - J Ruiz-Medrano
- Ophthalmology, Hospital Clínico San Carlos, Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdISSC), Madrid, Spain
| | - C Fernández-Pérez
- Investigative Support Unit, Hospital Clínico San Carlos, Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdISSC), Madrid, Spain
| | - J M Martínez-de-la-Casa
- Patología ocular del envejecimiento, calidad visual y calidad de vida, Instituto de Salud Carlos III, Madrid, Spain.,Ophthalmology, Hospital Clínico San Carlos, Departamento de Oftalmología y ORL, Facultad de Medicina, Universidad Complutense de Madrid, Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdISSC), Madrid, Spain
| | - D Díaz-Valle
- Patología ocular del envejecimiento, calidad visual y calidad de vida, Instituto de Salud Carlos III, Madrid, Spain.,Ophthalmology, Hospital Clínico San Carlos, Departamento de Oftalmología y ORL, Facultad de Medicina, Universidad Complutense de Madrid, Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdISSC), Madrid, Spain
| |
Collapse
|
34
|
Arriola-Villalobos P, Almendral-Gómez J, Garzón N, Ruiz-Medrano J, Fernández-Pérez C, Martínez-de-la-Casa JM, Díaz-Valle D. Effect of pharmacological pupil dilation on measurements and iol power calculation made using the new swept-source optical coherence tomography-based optical biometer. J Fr Ophtalmol 2016; 39:859-865. [PMID: 27793471 DOI: 10.1016/j.jfo.2016.09.003] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2016] [Revised: 08/29/2016] [Accepted: 09/02/2016] [Indexed: 10/20/2022]
Abstract
PURPOSE To determine whether pupil dilation affects biometric measurements and intraocular lens (IOL) power calculation made using the new swept-source optical coherence tomography-based optical biometer (IOLMaster 700©; Carl Zeiss Meditec, Jena, Germany). PROCEDURES Eighty-one eyes of 81 patients evaluated for cataract surgery were prospectively examined using the IOLMaster 700© before and after pupil dilation with tropicamide 1%. The measurements made were: axial length (AL), central corneal thickness (CCT), aqueous chamber depth (ACD), lens thickness (LT), mean keratometry (MK), white-to-white distance (WTW) and pupil diameter (PD). Holladay II and SRK/T formulas were used to calculate IOL power. Agreement between measurement modes (with and without dilation) was assessed through intraclass correlation coefficients (ICC) and Bland-Altman plots. RESULTS Mean patient age was 75.17±7.54 years (range: 57-92). Of the variables determined, CCT, ACD, LT and WTW varied significantly according to pupil dilation. Excellent intraobserver correlation was observed between measurements made before and after pupil dilation. Mean IOL power calculation using the Holladay 2 and SRK/T formulas were unmodified by pupil dilation. CONCLUSIONS The use of pupil dilation produces statistical yet not clinically significant differences in some IOLMaster 700© measurements. However, it does not affect mean IOL power calculation.
Collapse
Affiliation(s)
- P Arriola-Villalobos
- Ophthalmology, Hospital Clínico San Carlos, Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdISSC), Calle del Prof. Martín Lagos, s/n, 28040 Madrid, Spain
| | - J Almendral-Gómez
- Ophthalmology, Hospital Clínico San Carlos, Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdISSC), Calle del Prof. Martín Lagos, s/n, 28040 Madrid, Spain.
| | - N Garzón
- Instituto de Oftalmología Avanzada, 28010 Madrid, Spain
| | - J Ruiz-Medrano
- Ophthalmology, Hospital Clínico San Carlos, Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdISSC), Calle del Prof. Martín Lagos, s/n, 28040 Madrid, Spain
| | - C Fernández-Pérez
- Investigative Support Unit, Hospital Clínico San Carlos, Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdISSC), 28010 Madrid, Spain
| | - J M Martínez-de-la-Casa
- Ophthalmology, Hospital Clínico San Carlos, Departamento de Oftalmología y ORL, Facultad de Medicina, Universidad Complutense de Madrid, Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdISSC), 28010 Madrid, Spain
| | - D Díaz-Valle
- Ophthalmology, Hospital Clínico San Carlos, Departamento de Oftalmología y ORL, Facultad de Medicina, Universidad Complutense de Madrid, Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdISSC), 28010 Madrid, Spain
| |
Collapse
|
35
|
Vinas M, Dorronsoro C, Garzón N, Poyales F, Marcos S. In vivo subjective and objective longitudinal chromatic aberration after bilateral implantation of the same design of hydrophobic and hydrophilic intraocular lenses. J Cataract Refract Surg 2016; 41:2115-24. [PMID: 26703287 DOI: 10.1016/j.jcrs.2015.11.009] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2015] [Revised: 03/30/2015] [Accepted: 03/31/2015] [Indexed: 11/29/2022]
Abstract
PURPOSE To measure the longitudinal chromatic aberration in vivo using psychophysical and wavefront-sensing methods in patients with bilateral implantation of monofocal intraocular lenses (IOLs) of similar aspheric design but different materials (hydrophobic Podeye and hydrophilic Poday). SETTING Instituto de Optica, Consejo Superior de Investigaciones Cientificas, Madrid, Spain. DESIGN Prospective observational study. METHODS Measurements were performed with the use of psychophysical (480 to 700 nm) and wavefront-sensing (480 to 950 nm) methods using a custom-developed adaptive optics system. Chromatic difference-of-focus curves were obtained from best-focus data at each wavelength, and the longitudinal chromatic aberration was obtained from the slope of linear regressions to those curves. RESULTS The longitudinal chromatic aberration from psychophysical measurements was 1.37 diopters (D) ± 0.08 (SD) (hydrophobic) and 1.21 ± 0.08 D (hydrophilic). From wavefront-sensing, the longitudinal chromatic aberration was 0.88 ± 0.07 D and 0.73 ± 0.09 D, respectively. At 480 to 950 nm, the longitudinal chromatic aberration was 1.27 ± 0.09 D (hydrophobic) and 1.02 ± 0.13 D (hydrophilic). The longitudinal chromatic aberration was consistently higher in eyes with the hydrophobic IOL than in eyes with the hydrophilic IOL (a difference of 0.16 D and 0.15 D, respectively). Similar to findings in young phakic eyes, the longitudinal chromatic aberration from the psychophysical method was consistently higher than from wavefront-sensing, by 0.48 D (35.41%) for the hydrophobic IOL and 0.48 D (39.43%) for the hydrophilic IOL. CONCLUSION Longitudinal chromatic aberrations were smaller with hydrophilic IOLs than with hydrophobic IOLs of the same design. FINANCIAL DISCLOSURE No author has a financial or proprietary interest in any material or method mentioned.
Collapse
Affiliation(s)
- Maria Vinas
- From the Instituto de Óptica (Vinas, Dorronsoro, Marcos), Consejo Superior de Investigaciones Científicas, and the Instituto de Oftalmología Avanzada (Garzón, Poyales), Madrid, Spain.
| | - Carlos Dorronsoro
- From the Instituto de Óptica (Vinas, Dorronsoro, Marcos), Consejo Superior de Investigaciones Científicas, and the Instituto de Oftalmología Avanzada (Garzón, Poyales), Madrid, Spain
| | - Nuria Garzón
- From the Instituto de Óptica (Vinas, Dorronsoro, Marcos), Consejo Superior de Investigaciones Científicas, and the Instituto de Oftalmología Avanzada (Garzón, Poyales), Madrid, Spain
| | - Francisco Poyales
- From the Instituto de Óptica (Vinas, Dorronsoro, Marcos), Consejo Superior de Investigaciones Científicas, and the Instituto de Oftalmología Avanzada (Garzón, Poyales), Madrid, Spain
| | - Susana Marcos
- From the Instituto de Óptica (Vinas, Dorronsoro, Marcos), Consejo Superior de Investigaciones Científicas, and the Instituto de Oftalmología Avanzada (Garzón, Poyales), Madrid, Spain
| |
Collapse
|
36
|
Fernández-García A, Romero C, Garzón N. "Dry Lake" technique for the treatment of hypertrophic bleb following XEN(®) Gel Stent placement. ACTA ACUST UNITED AC 2015; 90:536-8. [PMID: 26008922 DOI: 10.1016/j.oftal.2015.03.003] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2014] [Accepted: 03/07/2015] [Indexed: 10/23/2022]
Abstract
CASE REPORT The case of a patient with previous uncomplicated XEN(®) drainage glaucoma surgery is described, who presented with hypertrophic bleb and mechanical ectropion. Treatment consisted of the «Dry Lake» procedure to drain the hypertrophic bleb following blockage with viscoelastic of the ab-interno stent and bleb sealing with a tissue adhesive. DISCUSSION Proposals for the management of this type of bleb include therapeutic strategies, sutures or even autologous blood. The use of Tissucol(®), already described in glaucoma surgery, may be appropriate to treat this complication of XEN(®) placement.
Collapse
Affiliation(s)
| | - C Romero
- Instituto de Oftalmología Avanzada, Madrid, España
| | - N Garzón
- Instituto de Oftalmología Avanzada, Madrid, España
| |
Collapse
|
37
|
Garzón N, Poyales F, de Zárate BO, Ruiz-García JL, Quiroga JA. Evaluation of rotation and visual outcomes after implantation of monofocal and multifocal toric intraocular lenses. J Refract Surg 2015; 31:90-7. [PMID: 25735041 DOI: 10.3928/1081597x-20150122-03] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2014] [Accepted: 12/16/2014] [Indexed: 11/20/2022]
Abstract
PURPOSE To evaluate rotational stability and its influence on postoperative visual acuity of different monofocal and multifocal toric intraocular lenses (IOLs). METHODS A prospective interventional study was designed. Ninety-one patients with a mean age of 71.65 ± 11.82 years were implanted with toric IOLs after phacoemulsification. Three monofocal toric IOLs (the Lentis LT [Oculentis, Berlin, Germany], enVista [Bausch & Lomb, Rochester, NY], and AcrySof IQ [Alcon Laboratories, Inc., Fort Worth, TX]) and one multifocal toric IOL (AcrySof IQ ReSTOR; Alcon Laboratories, Inc.) were implanted. Preoperative and postoperative images were taken to calculate the misalignment due to the marking method. To evaluate rotation in the different follow-up visits, another photograph was taken 1 hour and 1, 7 and 30 days postoperatively. Refraction, uncorrected distance visual acuity (UDVA), and corrected distance visual acuity were measured 30 days postoperatively. RESULTS Postoperative UDVA was 0.1 logMAR or better in 64.6% of eyes implanted with monofocal IOLs and 46.4% of eyes implanted with multifocal IOLs. The enVista toric IOL showed the best UDVA compared to the other monofocal IOLs, with 81% of eyes with 0.1 logMAR or better. The mean misalignment in the total group studied was 0.07° ± 0.60°; 69.6% of monofocal IOLs and 67.9% of multifocal IOLs showed less than 5° of rotation. A correlation was found between postoperative UDVA and rotation in the monofocal and multifocal IOLs implanted (r = 0.439 [P < .011] and = 0.787 [P = .001], respectively). CONCLUSIONS At 1 month postoperatively, UDVA was slightly more affected by IOL rotation in multifocal than monofocal toric IOLs. The marking method was also effective.
Collapse
|
38
|
Abstract
OBJECTIVE This double-blind, double-dummy, two-way comparative trial evaluated the overall efficacy and tolerability of intramuscular (im) vs oral meloxicam. SUBJECTS 346 patients with rheumatoid arthritis (RA). TREATMENT AND METHODS 173 patients in each group were randomised to receive either im meloxicam (15 mg) plus a placebo tablet, or oral meloxicam (15 mg) plus a placebo injection for 7 days. RESULTS Significant (p < 0.001) improvements in overall pain and disease activity were observed by patients treated with im and oral meloxicam, with no significant difference between treatments. The im formulation was better than the oral tablet in terms of rapidity of action (p=0.012), global efficacy (p=0.030) and duration of morning stiffness (p=0.026). Local tolerability of im meloxicam was very good and comparable with placebo injections. CONCLUSION Oral and im meloxicam (15 mg) were both effective and well-tolerated for acute exacerbations of RA. The im formulation had some advantages, such as a faster onset of action.
Collapse
Affiliation(s)
- B Combe
- Fédération de Rhumatologie, H pital Lapeyronie 371, Montpellier, France
| | | | | | | |
Collapse
|
39
|
|
40
|
Abstract
An isotonic electrolyte solution with a composition similar to equine sweat was compared to an isotonic glucose-glycine-electrolyte solution for oral rehydration therapy in exercising horses. Ten horses were dehydrated by using frusemide and allocated randomly to receive 4 different oral solutions: isotonic sweat-like electrolyte solution, half-strength hypotonic electrolyte solution, isotonic glucose-glycine-electrolyte solution, and plain water. Solutions were given by nasogastric tube using the same volume as the bodyweight lost by each horse. Blood samples were collected before and throughout 6 h of the rehydration period. Results showed that all solutions recovered pre-frusemide values of packed cell volume (PCV) and total plasma protein (TP) in a similar fashion. No changes for Na+ values were observed during the rehydration period when the isotonic sweat-like solution was used. However, a significant hyponatraemia was induced throughout rehydration when the other 3 solutions were given, especially when hypotonic solution and water were used. Osmolality values did not change when both isotonic solutions were administered; but a significant hypotonicity was observed when hypotonic solution and water were given. When the isotonic sweat-like solution was used, plasma Cl-, K+ and creatinine values recovered to premedication values significantly faster than the other 3 solutions. In conclusion, the isotonic sweat-like electrolyte was the best solution because it restored rapidly the fluid and plasma electrolyte imbalances. In contrast, the isotonic glucose-glycine-electrolyte solution impaired the plasma electrolyte imbalances.
Collapse
Affiliation(s)
- L Monreal
- Facultat de Veterinària, Universitat Autònoma de Barcelona, Spain
| | | | | | | | | |
Collapse
|
41
|
Garzón N. [Interview with Nelly Garzón, Prof. of the School of Nursing of the University of Colombia]. Rev Enferm 1981; 4:75-76. [PMID: 6914777] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
|
42
|
Garzón N. [Nursing as a discipline]. Nueva Enferm 1980:19-23. [PMID: 6907730] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
|
43
|
Garzón N. [To Spanish nursing which has removed the confining ceiling. Interview with Nelly Garzón, President of the National Nurses' Association of Colombia]. Nueva Enferm 1980:16-9. [PMID: 6907725] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
|
44
|
Páez de Reyes F, De Franco V, De Dorado YH, De Rangel R, De Vanegas ML, Cruz LM, Garzón N, Cascante M, Palacio R, Quintero S, Ramírez C. [Planning for the future of nursing education]. ANEC 1967; 2:26-39. [PMID: 5185852] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
|