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Rua Amaro D, Bertelmann E, von Sonnleithner C. Clinical outcomes and optical performance of a new segmental refractive extended depth-of-focus intraocular lens. BMC Ophthalmol 2024; 24:320. [PMID: 39090592 PMCID: PMC11293127 DOI: 10.1186/s12886-024-03586-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2024] [Accepted: 07/22/2024] [Indexed: 08/04/2024] Open
Abstract
BACKGROUND The visual performance and the optical quality of a segmental refractive extended depth-of-focus (EDoF) intraocular lens (IOL) were evaluated in a prospective, single-arm, single-center study. METHODS A total of 20 patients (40 eyes) after bilateral implantation of the refractive segmental EDoF Acunex Vario AN6V were included. Assessment procedure: refraction outcome, monocular and binocular uncorrected (UCVA) and distance-corrected visual acuity (DCVA), defocus curve, contrast sensitivity (CS), higher-order aberrations (HOAs) and patient satisfaction were evaluated 1 and 3 months after surgery. RESULTS At 3-month follow-up, mean spherical equivalent was - 0.23 ± 0.32 D. Binocular uncorrected distance visual acuity (VA) at distance, intermediate and near was - 0.08 ± 0.06 logMAR at 4 m, -0.03 ± 0.06 logMAR at 66 cm and 0.16 ± 0.06 logMAR at 40 cm, respectively. The binocular defocus curve showed a VA better than 0.20 logMAR over a range from + 1.50 to - 2.45 D. Contrast sensitivity aligned with monofocal lenses, highlighting the lens's clinical value. Aberrometry showed minimal changes in corneal aberrations. NEI-RQL-42-Questionnaire showed a high patient satisfaction for daily activities and revealed reduced dependence on glasses, particularly for near and intermediate vision. The Acunex Vario AN6V demonstrated minimal dysphotopsias, making it a promising option for those seeking spectacle independence. CONCLUSION This segmental refractive EDoF IOL provides a high degree of spectacle independence for far and intermediate distances with functional near VA. Although inducing residual coma aberrations, it showed subjectively good results with little dysphotopsias. TRIAL REGISTRATION This study protocol was reviewed and approved by ethics committee of Charité University, Berlin, Germany, with approval number EA4/126/20.
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Affiliation(s)
- David Rua Amaro
- Department of Ophthalmology, Charité Medical University, Campus Virchow, Augustenburger Platz 1, 13353, Berlin, Germany
| | - Eckart Bertelmann
- Department of Ophthalmology, Charité Medical University, Campus Virchow, Augustenburger Platz 1, 13353, Berlin, Germany
| | - Christoph von Sonnleithner
- Department of Ophthalmology, Charité Medical University, Campus Virchow, Augustenburger Platz 1, 13353, Berlin, Germany.
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Hui N, Chu MF, Li Y, Wang CY, Yu L, Ma B. Comparative analysis of visual quality between unilateral implantation of a trifocal intraocular lens and a rotationally asymmetric refractive multifocal intraocular lens. Int J Ophthalmol 2022; 15:1460-1467. [PMID: 36124189 DOI: 10.18240/ijo.2022.09.08] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Accepted: 04/26/2022] [Indexed: 11/23/2022] Open
Abstract
AIM To compare visual quality after unilateral cataract surgery with implantation of trifocal intraocular lens (IOL) and asymmetric refractive multifocal IOL. METHODS The prospective nonrandom, comparative study consisted of 60 eyes of 60 patients suffering unilateral cataract surgery with implantation of two different IOLs: AT LISA tri 839MP (30 eyes; Carl Zeiss Meditec, Germany) and LS-313 MF30 (30 eyes; Oculentis GmbH, Germany). Visual acuity, refractive outcome, contrast sensitivity, defocus curves, quality of vision, and optical phenomena were evaluated at 3mo postoperatively. RESULTS There were no statistical differences between groups in uncorrected distance visual acuity (P=0.13) and uncorrected near visual acuity (P=0.54). In contrast, uncorrected intermediate visual acuity was better in trifocal group compared to the refractive multifocal group (P=0.02). No significant statistical between-group difference was detected in cylinder (P=0.43). Compared to trifocal group, spherical refraction and spherical equivalent in refractive multi focal group were more myopic (P<0.01). Under photopic conditions, no significant statistical differences were found between groups in contrast sensitivity at 3 and 6 cycles per degree (cpd). The refractive multifocal group performed better at 12 and 18 cpd than the trifocal group (P=0.01, P=0.034, respectively). The questionnaires of quality of vision and optical phenomena showed no differences between groups. CONCLUSION Trifocal IOL is superior to refractive multifocal IOL in intermediate visual acuity. Rotationally asymmetric refractive multifocal IOL is more myopic in automated refraction and significantly better for the photopic contrast sensitivity at high frequency.
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Affiliation(s)
- Na Hui
- Shaanxi Eye Hospital, Xi'an People's Hospital (Xi'an Fourth Hospital), Affiliated Guangren Hospital, School of Medicine, Xi'an Jiaotong University, Xi'an 710004, Shaanxi Province, China
| | - Mei-Fang Chu
- Shaanxi Eye Hospital, Xi'an People's Hospital (Xi'an Fourth Hospital), Affiliated Guangren Hospital, School of Medicine, Xi'an Jiaotong University, Xi'an 710004, Shaanxi Province, China
| | - Yan Li
- Shaanxi Eye Hospital, Xi'an People's Hospital (Xi'an Fourth Hospital), Affiliated Guangren Hospital, School of Medicine, Xi'an Jiaotong University, Xi'an 710004, Shaanxi Province, China
| | - Cong-Yi Wang
- Shaanxi Eye Hospital, Xi'an People's Hospital (Xi'an Fourth Hospital), Affiliated Guangren Hospital, School of Medicine, Xi'an Jiaotong University, Xi'an 710004, Shaanxi Province, China
| | - Lei Yu
- Shaanxi Eye Hospital, Xi'an People's Hospital (Xi'an Fourth Hospital), Affiliated Guangren Hospital, School of Medicine, Xi'an Jiaotong University, Xi'an 710004, Shaanxi Province, China
| | - Bo Ma
- Shaanxi Eye Hospital, Xi'an People's Hospital (Xi'an Fourth Hospital), Affiliated Guangren Hospital, School of Medicine, Xi'an Jiaotong University, Xi'an 710004, Shaanxi Province, China
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Venter JA, Collins BM, Hannan SJ, Teenan D, Schallhorn JM. Outcomes of a Refractive Segmented Bifocal Intraocular Lens with a Lower Near Addition. Clin Ophthalmol 2022; 16:2531-2543. [PMID: 35974904 PMCID: PMC9375988 DOI: 10.2147/opth.s376323] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Accepted: 07/29/2022] [Indexed: 12/04/2022] Open
Abstract
Purpose To evaluate clinical and subjective outcomes of a segmented bifocal IOL with a 2.0 D near addition. Patients and Methods Retrospective analyses of patients who had undergone refractive lens exchange with bilateral implantation of the SBL-2 IOL (Lenstec, Inc., Christ Church, Barbados) were performed. The number of patients included in the study was 389 (778 eyes). Refractive, visual and patient-reported outcomes were presented for the last available visit (mean follow-up 2.05 ± 1.33 months). Results The percentage of eyes within ±0.50D and ±1.00D of emmetropia was 82.5% (642/778) and 97.8% (761/778), respectively. The mean uncorrected intermediate visual acuity (66 cm) of the last available visit was 0.08 ± 0.15 logMAR monocularly and 0.04 ± 0.14 logMAR binocularly. The mean monocular and binocular uncorrected near visual acuity (40 cm) were 0.30 ± 0.15 logMAR and 0.24 ± 0.14 logMAR, respectively. Of all patients, 97.2% (378/389) claimed never to use any correction for distance vision, while 93.1% (362/389) of patients did not require any correction for near vision. The mean scores for visual phenomena (on the scale from 1 – no difficulty to 7 – severe difficulty) were 1.8 ± 1.3, 1.7 ± 1.2, 1.7 ± 1.2 and 1.6 ± 1.2 for glare, halo, starburst, and ghosting/double vision, respectively. Conclusion Despite the lower near addition of SBL-2 segmented bifocal IOL, patients achieved reasonable rates of spectacle independence and a low incidence of visual phenomena.
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Affiliation(s)
- Jan A Venter
- Optical Express, Glasgow, UK
- Eye and Laser Institute, Port Elizabeth, South Africa
- Correspondence: Jan A Venter, Eye and Laser Institute, 205 Cape Road, Newton Park, Port Elizabeth, South Africa, Tel +44 7713 480975, Email
| | | | | | | | - Julie M Schallhorn
- University of California, San Francisco, Department of Ophthalmology, San Francisco, CA, USA
- F.I. Proctor Foundation, University of California, San Francisco, CA, USA
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Fan C, Zhou Y, Jiang J. Secondary positioning of rotationally asymmetric refractive multifocal intraocular lens in a patient with glaucoma: A case report. World J Clin Cases 2022; 10:7013-7019. [PMID: 36051137 PMCID: PMC9297401 DOI: 10.12998/wjcc.v10.i20.7013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Revised: 04/20/2022] [Accepted: 05/28/2022] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Asymmetric multifocal intraocular lenses (IOLs) are now widely used in the modern cataract surgery, providing a good level of visual performance over a range of distances and high postoperative patient satisfaction. We report a case of improved visual quality after shifting the near segment of an asymmetrical multifocal IOL to the superotemporal placement in the dominant eye of a glaucoma patient.
CASE SUMMARY A 72-year-old woman with bilateral glaucoma underwent phacoemulsification in the dominant eye (left eye) with implantation of an asymmetrical multifocal IOL. Postoperative uncorrected distance visual acuity (UDVA) was 0.0 logMAR (20/20 Snellen) and uncorrected near visual acuity (UNVA) was 0.1 logMAR (20/25 Snellen). Two weeks later, the patient presented to our clinic with decreased vision due to migration of lens epithelial cells to IOL anterior surface and edema of corneal endothelial cells. Anterior capsule polishing and superotemporal placement of near segment [+3.00 diopter (D) addition (add)] of IOL were performed. As a result, UDVA at the first week and first year after reposition was 0.0 logMAR (20/20 Snellen), and compared with 0.3 logMAR (20/40 Snellen) in the first week, the UNVA was improved to 0.0 logMAR (20/20 Snellen) one year after surgery.
CONCLUSION The postoperative inflammatory reaction and lens epithelial cells proliferation were obvious in this glaucoma patient. Capsule polishing and rotation of the lens were beneficial to the patient, which not only enhanced the patient's vision, but also improved the patient's satisfaction. Therefore, glaucoma patients need to be cautious of implanting multifocal IOLs. Placement of a near segment of an asymmetrical multifocal IOL in the dominant eye should be performed on an individual basis.
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Affiliation(s)
- Cong Fan
- Department of Ophthalmology, Xiangya Hospital Central South University, Changsha 410000, Hunan Province, China
| | - Yi Zhou
- Department of Ophthalmology, Xiangya Hospital Central South University, Changsha 410000, Hunan Province, China
| | - Jian Jiang
- Department of Ophthalmology, Xiangya Hospital Central South University, Changsha 410000, Hunan Province, China
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Zhu Y, Zhong Y, Fu Y. The effects of premium intraocular lenses on presbyopia treatments. ADVANCES IN OPHTHALMOLOGY PRACTICE AND RESEARCH 2022; 2:100042. [PMID: 37846220 PMCID: PMC10577869 DOI: 10.1016/j.aopr.2022.100042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 01/28/2022] [Accepted: 02/20/2022] [Indexed: 10/18/2023]
Abstract
Background Presbyopia has become a global disease affecting the world's aging population. Among various treatments, cataract extraction and intraocular lens (IOL) implantation have become the most popular and common methods of presbyopia correction. During the twentieth century, IOLs have underwent significant innovation and advancements to meet the patients' high demands for functional vision at all distances. Main Text To meet the increasing needs for excellent near and intermediate vision for daily activities, some premium IOLs with more than one focus have been developed, for example, the refractive MfIOLs, diffractive MfIOLs, extended depth of field (EDOF) IOLs, and accommodating IOLs (AIOLs) were introduced to meet this need. In addition, the add-on MfIOLs have been explored as promising supplementary IOLs for pseudophakic presbyopia. When selecting the MfIOLs, the IOLs' features, patients' characteristics, preoperative eye conditions, and treatment expectations should be considered. Conclusions In this review, we focus on the multifocal IOLs (MfIOLs) commonly used for presbyopia correction and systematically summarized their optical designs and clinical outcomes. More evidence-based studies are required to provide guidelines for MfIOL selection, provide maximum visual benefits, and develop personalized visual solutions in the future.
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Affiliation(s)
- Yanan Zhu
- Corresponding author. Eye Center, Second Affiliated Hospital, School of Medicine, Zhejiang University, No. 88 Jiefang Road, Hangzhou, 310009, Zhejiang Province, China.
| | | | - Yanyan Fu
- Eye Center of the Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310009, Zhejiang Province, China
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Comparing prediction accuracy between total keratometry and conventional keratometry in cataract surgery with refractive multifocal intraocular lens implantation. Sci Rep 2021; 11:19234. [PMID: 34584140 PMCID: PMC8478919 DOI: 10.1038/s41598-021-98491-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Accepted: 09/08/2021] [Indexed: 11/08/2022] Open
Abstract
We aimed to compare refractive outcomes between total keratometry using a swept-source optical biometer and conventional keratometry in cataract surgery with refractive multifocal intraocular lens (IOL) implantation. We included patients who underwent cataract surgery with refractive multifocal IOL implantation. The IOL power was calculated using conventional formulas (Haigis, SRK/T, Holladay 2, and Barrett Universal II) as well as a new formula (Barrett TK Universal II). The refractive mean error, mean absolute error, and median absolute error were compared, as were the proportions of eyes within ± 0.25 diopters (D), ± 0.50 D, and ± 1.00 D of prediction error. In total 543 eyes of 543 patients, the absolute prediction error of total keratometry was significantly higher than that of conventional keratometry using the SRK/T (P = 0.034) and Barrett Universal II (P = 0.003). The proportion of eyes within ± 0.50 D of the prediction error using the SRK/T and Barrett Universal II was also significantly higher when using conventional keratometry than total keratometry (P = 0.010 for SRK/T and P = 0.005 for Barrett Universal II). Prediction accuracy of conventional keratometry was higher than that of total keratometry in cataract surgery with refractive multifocal IOL implantation.
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Vargas V, Ferreira R, Alió Del Barrio JL, Alió JL. Visual Outcomes, Patient Satisfaction, and Light Distortion Analysis After Blended Implantation of Rotationally Asymmetric Multifocal Intraocular Lenses. J Refract Surg 2021; 36:796-803. [PMID: 33295991 DOI: 10.3928/1081597x-20200902-01] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Accepted: 08/27/2020] [Indexed: 11/20/2022]
Abstract
PURPOSE To evaluate the visual outcomes and patient satisfaction after blended implantation of rotationally asymmetric multifocal intraocular lenses (IOLs) (LENTIS Mplus LS-313 +3.00 and +1.50 diopters [D], Oculentis GmbH). METHODS This was an interventional prospective study that included 40 eyes of 20 patients who underwent uneventful refractive lens exchange. Patients were implanted with the LENTIS Mplus LS-313 +3.00 D IOL in the non-dominant eye and the +1.50 D IOL in the dominant eye. Twelve months after surgery, binocular and monocular uncorrected and corrected near, intermediate, and distance visual acuity, defocus curve, contrast sensitivity, and light distortion analysis (LDA) were evaluated. Monocular total ocular aberrometry with a pyramidal wavefront sensor (Osiris; CSO) and patient satisfaction was evaluated with the 10-item Near Activity Vision Questionnaire (NAVQ-10). RESULTS There was a statistically significant improvement in the uncorrected distance visual acuity in both eyes after surgery (P < .001), with good uncorrected near and intermediate distance visual acuity (0.18 and 0.38 logMAR, respectively). The binocular defocus curve showed good levels of visual acuity for the most important ranges of vision. Contrast sensitivity and LDA had significantly better results when measured binocularly than monocularly. Higher order aberrations were significantly higher in the +3.00 D eye (P < .001). The mean Rasch score for the NAVQ-10 questionnaire was 26.9 ± 27.66. CONCLUSIONS Visual outcomes, defocus curve, LDA, and contrast sensitivity were significantly better binocularly than monocularly. The implantation of a blended IOL combination with different near addition complements the advantages of each IOL, improving binocular visual outcomes and providing good patient satisfaction. [J Refract Surg. 2020;36(12):796-803.].
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Ye L, Chen T, Hu Z, Yang Q, Su Q, Li J. Comparison of the visual performance between Oculentis MF30 and Tecnis ZMB00 multifocal intraocular lenses. ANNALS OF TRANSLATIONAL MEDICINE 2021; 9:144. [PMID: 33569446 PMCID: PMC7867926 DOI: 10.21037/atm-20-7777] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Background To compare the visual performance of MF30 asymmetric refractive multifocal intraocular lenses (MIOLs) with ZMB00 all optic zone diffractive MIOLs. Methods This is a prospective study. Patients that underwent phacoemulsification were divided into two groups according to the type of MIOLs used: 35 patients were implanted with asymmetric refractive MIOLs and 35 patients with all optic zone diffractive MIOLs. Visual acuity (VA), refraction, defocus curves, objective optical quality, and a questionnaire evaluating quality of life were measured at 3 months postoperatively. Results There were no significant differences between the two groups in uncorrected distance visual acuity (UDVA), uncorrected near visual acuity (UNVA), best-corrected distance visual acuity (BCDVA), or distance-corrected near visual acuity (DCNVA). However, the uncorrected intermediate VA was 0.24±0.10 in the refractive group and 0.31±0.13 in the diffractive group (P<0.05), and the distance-corrected intermediate VA was 0.22±0.09 in the refractive group and 0.31±0.14 in the diffractive group (P<0.05). Defocus curves showed two peaks of maximum vision in both groups. However, the curve between the two peaks in the refractive group was smoother than that of the diffractive group. The modulated transfer function cut-off frequency was 22.74±12.29 c/d in the refractive group and 30.50±10.04 c/d in the diffractive group (P<0.05). The Optical Quality Analysis System (OQAS) values 100% (OV100%) was 0.75±0.41 in the refractive group and 1.02±0.34 in the diffractive group (P<0.05), while the OV20% was 0.52±0.34 in the refractive group and 0.71±0.25 in the diffractive group (P<0.05). There was no significant difference between the two groups in overall satisfaction, spectacle independence ratio, or visual interference phenomenon. Conclusions Both MIOLs achieve good VA at distance and near vision. Oculentis MF30 showed better intermediate VA, and Tecnis ZMB00 appears to have better objective visual quality. Trial registration NCT02234635 (http://www.clinicaltrials.gov).
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Affiliation(s)
- Lingying Ye
- Cataract Department, Eye Hospital of Wenzhou Medical University, Wenzhou, China
| | - Tianyu Chen
- Retina Department, Eye Hospital of Wenzhou Medical University, Wenzhou, China
| | - Zhixiang Hu
- Retina Department, Eye Hospital of Wenzhou Medical University, Wenzhou, China
| | - Qingwen Yang
- Cataract Department, Eye Hospital of Wenzhou Medical University, Wenzhou, China
| | - Qiudong Su
- Cataract Department, Eye Hospital of Wenzhou Medical University, Wenzhou, China
| | - Jin Li
- Cataract Department, Eye Hospital of Wenzhou Medical University, Wenzhou, China
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Liu Y, Gao Y, Liu R, Hu C, Ma B, Miao J, Luo J, Qi H. Influence of angle kappa-customized implantation of rotationally asymmetric multifocal intraocular lens on visual quality and patient satisfaction. Acta Ophthalmol 2020; 98:e734-e742. [PMID: 31981307 DOI: 10.1111/aos.14356] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2019] [Accepted: 12/31/2019] [Indexed: 12/19/2022]
Abstract
PURPOSE To evaluate the visual outcomes and patient satisfaction with angle kappa-customized implantation of SBL-3 (Lenstec, Inc.; +3 D), a rotationally asymmetric multifocal intraocular lens (MIOL). METHODS This was a prospective randomized control study. Data from consecutive patients, who underwent bilateral implantation of SBL-3 MIOL from June 2017 to August 2018, were enrolled in the study. One eye of each patient was randomly chosen to receive a horizontal IOL placement (control group), while the other eye received angle kappa-customized placement (design group). The outcomes include uncorrected distance visual acuity (UDVA), uncorrected intermediate visual acuity (UIVA), uncorrected near visual acuity (UNVA), defocus curve, contrast sensitivity, quality of vision and patient satisfaction. The follow-up was 3 months. RESULTS The study enrolled 80 eyes of 40 patients. There was no significant difference in mean UDVA, UIVA and UNVA between the two groups. The design group showed significantly better visual acuity at -1.50 D of defocus, based on the defocus curve (p = 0.022), and less vertical coma (p = 0.002) than the control group. No significant differences in contrast sensitivity, modulation transfer function, Strehl ratio and patient satisfaction were found between the two groups. CONCLUSION Angle kappa-customized implantation of SBL-3 had little impact on visual outcomes and patient satisfaction, except for a moderate impact on intermediate visual acuity.
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Affiliation(s)
- Yiyun Liu
- Department of Ophthalmology Peking University Third Hospital Beijing China
- Beijing Key Laboratory of Restoration of Damaged Ocular Nerve Peking University Third Hospital Beijing China
| | - Yufei Gao
- Department of Ophthalmology Peking University Third Hospital Beijing China
- Beijing Key Laboratory of Restoration of Damaged Ocular Nerve Peking University Third Hospital Beijing China
| | - Rongjun Liu
- Department of Ophthalmology Peking University Third Hospital Beijing China
- Beijing Key Laboratory of Restoration of Damaged Ocular Nerve Peking University Third Hospital Beijing China
| | - Chenxi Hu
- Department of Ophthalmology Peking University Third Hospital Beijing China
- Beijing Key Laboratory of Restoration of Damaged Ocular Nerve Peking University Third Hospital Beijing China
| | - Baikai Ma
- Department of Ophthalmology Peking University Third Hospital Beijing China
- Beijing Key Laboratory of Restoration of Damaged Ocular Nerve Peking University Third Hospital Beijing China
| | - Jinhong Miao
- Department of Ophthalmology Peking University Third Hospital Beijing China
- Beijing Key Laboratory of Restoration of Damaged Ocular Nerve Peking University Third Hospital Beijing China
| | - Jinhua Luo
- Department of Ophthalmology Peking University Third Hospital Beijing China
- Beijing Key Laboratory of Restoration of Damaged Ocular Nerve Peking University Third Hospital Beijing China
- China Academy of Chinese Medical Sciences • Eye Hospital Beijing China
| | - Hong Qi
- Department of Ophthalmology Peking University Third Hospital Beijing China
- Beijing Key Laboratory of Restoration of Damaged Ocular Nerve Peking University Third Hospital Beijing China
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Kim JW, Eom Y, Chung HW, Song JS, Jeong JW, Park SK, Kim HM. Factors for good near and distance visual outcomes of multifocal intraocular lens with inferior segmental near add. Graefes Arch Clin Exp Ophthalmol 2020; 258:1735-1743. [DOI: 10.1007/s00417-020-04761-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Revised: 05/11/2020] [Accepted: 05/19/2020] [Indexed: 11/28/2022] Open
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Comparative Analysis of Visual Performance and Optical Quality with a Rotationally Asymmetric Multifocal Intraocular Lens and an Apodized Diffractive Multifocal Intraocular Lens. J Ophthalmol 2020; 2020:7923045. [PMID: 32377423 PMCID: PMC7189321 DOI: 10.1155/2020/7923045] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2019] [Revised: 01/15/2020] [Accepted: 02/10/2020] [Indexed: 02/07/2023] Open
Abstract
Purpose To compare the short-term visual outcomes and intraocular optical performance of a rotationally asymmetric multifocal intraocular lens (MIOL) (SBL-3, Lenstec, Inc., Christ Church, Barbados) and an apodized diffractive MIOL (the Acrysof IQ ResTOR SN6AD1, Alcon Laboratories, Inc., Fort Worth, Texas, United States). Methods A prospective, comparative, nonrandomized, and single-center study. Sixty-eight age-related cataract patients (81 eyes) after phacoemulsification cataract surgery and in-the-bag MIOL implantation were enrolled. Thirty-eight eyes received SBL-3, and 43 eyes received SN6AD1. Ophthalmological evaluation included uncorrected distance visual acuity (UDVA), uncorrected intermediate visual acuity (UIVA), uncorrected near visual acuity (UNVA), corrected distance visual acuity (CDVA), modulation transfer function (MTF), Strehl ratio (SR), intraocular aberrations (4 mm optical zone), and defocus curve at 3 months postoperatively. The Chinese version of the visual function index-14 (VF-12-CN) and spectacle independence were assessed in all patients. Results There was no statistically significant difference between groups in postoperative UDVA (p = 0.186). Postoperative UIVA and UNVA were significantly better for the SBL-3 group than for the SN6AD1 group (p < 0.01). Statistically significant differences were revealed in defocus levels from –3.50 D to −4.00 D with better visual acuities for the SBL-3 group (p < 0.01). For intraocular optical quality outcomes, statistically significant differences between groups were observed in RMS of intraocular total aberrations, coma, and trefoil high-order aberrations, presenting significantly higher values of these parameters in the eyes of the SBL-3 group (p < 0.01). Statistically significant differences were revealed in the MTF values at spatial frequencies of 5 and 10 cycles/degree between groups. There were no significant differences in scores of VF-12-CN, and spectacle independence between the groups (p > 0.05). Conclusions Both MIOLs were able to successfully restore visual function after cataract surgery. SBL-3 provided better UIVA and UNVA with a wider range of intermediate vision.
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Petelczyc K, Kolodziejczyk A, Błocki N, Byszewska A, Jaroszewicz Z, Kakarenko K, Kołacz K, Miler M, Mira-Agudelo A, Torres-Sepúlveda W, Rękas M. Model of the light sword intraocular lens: in-vitro comparative studies. BIOMEDICAL OPTICS EXPRESS 2020; 11:40-54. [PMID: 32010498 PMCID: PMC6968750 DOI: 10.1364/boe.11.000040] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2019] [Revised: 11/15/2019] [Accepted: 11/17/2019] [Indexed: 06/10/2023]
Abstract
This work presents the first models of light sword intraocular lenses (LS IOLs) with angularly modulated optical power. We performed an experimental, comparative study with multifocal and extended depth of focus intraocular lenses, which are available on the market. The measurements conducted in an original optical bench were utilised for an analysis of point spread functions, elongated foci, modulation transfer functions and the areas defined by them. The LS IOL models perform homogeneous imaging in the whole range of designed defocus. The proposed concept of extended depth of focus seems to be promising for the development of presbyopia-correcting intraocular lenses capable of regaining fully functional vision.
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Affiliation(s)
- Krzysztof Petelczyc
- Faculty of Physics, Warsaw University of
Technology, ul. Koszykowa 75, 00-662 Warsaw, Poland
| | - Andrzej Kolodziejczyk
- Faculty of Physics, Warsaw University of
Technology, ul. Koszykowa 75, 00-662 Warsaw, Poland
| | - Narcyz Błocki
- Łukasiewicz Research Network
– Maksymilian Pluta Institute of Applied Optics, ul.
Kamionkowska 18, 03-805 Warsaw, Poland
| | - Anna Byszewska
- Faculty of Physics, Warsaw University of
Technology, ul. Koszykowa 75, 00-662 Warsaw, Poland
- Ophthalmology Department, Military
Institute of Medicine, ul. Szaserów 128, 04-141 Warsaw,
Poland
| | - Zbigniew Jaroszewicz
- Łukasiewicz Research Network
– Maksymilian Pluta Institute of Applied Optics, ul.
Kamionkowska 18, 03-805 Warsaw, Poland
- National Institute of Telecommunications,
ul. Szachowa 1, 04-894 Warsaw, Poland
| | - Karol Kakarenko
- Faculty of Physics, Warsaw University of
Technology, ul. Koszykowa 75, 00-662 Warsaw, Poland
| | - Katarzyna Kołacz
- Łukasiewicz Research Network
– Maksymilian Pluta Institute of Applied Optics, ul.
Kamionkowska 18, 03-805 Warsaw, Poland
| | - Michał Miler
- Faculty of Physics, Warsaw University of
Technology, ul. Koszykowa 75, 00-662 Warsaw, Poland
- Łukasiewicz Research Network
– Maksymilian Pluta Institute of Applied Optics, ul.
Kamionkowska 18, 03-805 Warsaw, Poland
| | - Alejandro Mira-Agudelo
- Grupo de Óptica y Fotónica,
Instituto de Física, Facultad de Ciencias Exactas y Naturales,
Universidad de Antioquia UdeA, Calle 70 No. 52-21, Medellín,
Colombia
| | - Walter Torres-Sepúlveda
- Grupo de Óptica y Fotónica,
Instituto de Física, Facultad de Ciencias Exactas y Naturales,
Universidad de Antioquia UdeA, Calle 70 No. 52-21, Medellín,
Colombia
| | - Marek Rękas
- Ophthalmology Department, Military
Institute of Medicine, ul. Szaserów 128, 04-141 Warsaw,
Poland
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Comparison of the Clinical Performance of Refractive Rotationally Asymmetric Multifocal IOLs with Other Types of IOLs: A Meta-Analysis. J Ophthalmol 2018; 2018:4728258. [PMID: 30363767 PMCID: PMC6181000 DOI: 10.1155/2018/4728258] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2017] [Revised: 07/01/2018] [Accepted: 07/22/2018] [Indexed: 01/11/2023] Open
Abstract
Objective To compare the clinical performance of refractive rotationally asymmetric multifocal intraocular lens (IOLs) with spherical monofocal, accommodating, and bifocal IOLs. Methods A comprehensive literature search of PubMed, EMBASE, Cochrane Controlled Trials Register, and Web of Science up to February 2017 was performed to identify randomized controlled trials (RCT) and comparative cohort studies. Main outcomes were uncorrected distance visual acuity (UDVA), uncorrected intermediate visual acuity (UIVA), uncorrected near visual acuity (UNVA), higher-order aberrations (HOAs), MTF, Strehl ratio, and residual sphere and cylinder. Results Mplus provided significantly worse UDVA than spherical monofocal IOLs (WMD: 0.13, P=0.008), but significantly better UIVA than high-add bifocal IOLs (WMD: −0.19, P < 0.00001), spherical monofocal IOLs (WMD: −0.12, P < 0.0001), and accommodating IOLs (WMD: −0.21, P < 0.00001). Mplus provided significantly worse UNVA than high-add bifocal IOLs (WMD: 0.07, P < 0.00001), but significantly better UNVA than spherical monofocal IOLs (WMD: −0.19, P < 0.00001). Mplus resulted in significantly higher HOAs than high-add bifocal IOLs (WMD: 0.38, P < 0.00001) and spherical monofocal IOLs (WMD: 0.51, P=0.0004). Mplus provided a significantly lower MTF cut-off and Strehl ratio than other type of IOLs. Conclusion The Mplus IOLs perform best regarding intermediate visual acuity whereas they lack in distance visual acuity compared to monofocal IOLs and near visual acuity compared to bifocal IOLs. These results may be due to structure of Mplus IOLs resulting in higher-order aberrations.
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14
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Wolffsohn JS, Davies LN. Presbyopia: Effectiveness of correction strategies. Prog Retin Eye Res 2018; 68:124-143. [PMID: 30244049 DOI: 10.1016/j.preteyeres.2018.09.004] [Citation(s) in RCA: 148] [Impact Index Per Article: 24.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2018] [Revised: 09/14/2018] [Accepted: 09/18/2018] [Indexed: 01/04/2023]
Abstract
Presbyopia is a global problem affecting over a billion people worldwide. The prevalence of unmanaged presbyopia is as high as 50% of those over 50 years of age in developing world populations, due to a lack of awareness and accessibility to affordable treatment, and is even as high as 34% in developed countries. Definitions of presbyopia are inconsistent and varied, so we propose a redefinition that states "presbyopia occurs when the physiologically normal age-related reduction in the eye's focusing range reaches a point, when optimally corrected for distance vision, that the clarity of vision at near is insufficient to satisfy an individual's requirements". Strategies for correcting presbyopia include separate optical devices located in front of the visual system (reading glasses) or a change in the direction of gaze to view through optical zones of different optical powers (bifocal, trifocal or progressive addition spectacle lenses), monovision (with contact lenses, intraocular lenses, laser refractive surgery and corneal collagen shrinkage), simultaneous images (with contact lenses, intraocular lenses and corneal inlays), pinhole depth of focus expansion (with intraocular lenses, corneal inlays and pharmaceuticals), crystalline lens softening (with lasers or pharmaceuticals) or restored dynamics (with 'accommodating' intraocular lenses, scleral expansion techniques and ciliary muscle electrostimulation); these strategies may be applied differently to the two eyes to optimise the range of clear focus for an individual's task requirements and minimise adverse visual effects. However, none fully overcome presbyopia in all patients. While the restoration of natural accommodation or an equivalent remains elusive, guidance is given on presbyopic correction evaluation techniques.
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Affiliation(s)
- James S Wolffsohn
- Ophthalmic Research Group, Life and Health Sciences, Aston University, Birmingham, B4 7ET, UK.
| | - Leon N Davies
- Ophthalmic Research Group, Life and Health Sciences, Aston University, Birmingham, B4 7ET, UK
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15
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Patient-centered advancements in cataract surgery. Curr Opin Ophthalmol 2016; 28:1-2. [PMID: 27820749 DOI: 10.1097/icu.0000000000000341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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