Comparison of Optical Quality Between Two Intraocular Lenses Using Double-Pass Based Optical Quality Analysis System.
10.3341/jkos.2013.54.12.1818
- Author:
Ae Young KWAK
1
;
Moonjung CHOI
;
Kyoung Yul SEO
;
Ji Min AHN
Author Information
1. The Institute of Vision Research, Department of Ophthalmology, Yonsei University College of Medicine, Seoul, Korea.
- Publication Type:Original Article
- Keywords:
Double-pass;
Optical Quality Analysis System;
Visual quality;
1-piece aspheric intraocular lenses
- MeSH:
Cataract;
Lenses, Intraocular*;
Retinaldehyde;
Visual Acuity
- From:Journal of the Korean Ophthalmological Society
2013;54(12):1818-1823
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
PURPOSE: To compare postoperative optical qualities between two types of 1-piece aspheric intraocular lenses using the double-pass technique. METHODS: Uncorrected visual acuity (UCVA), best corrected visual acuity (BCVA), and spherical equivalent were evaluated in the subject groups; the first which included 25 eyes implanted with Tecnis(R) ZCB00 and the second which included 16 eyes implanted with Acrysof(R) IQ SN60WF. In addition, modulation transfer function (MTF) cut-off, Strehl ratio, and objective scattering index (OSI) were measured 6 months after cataract surgery in the 2 subject groups using Optical Quality Analysis System (OQAS, Visiometrics S.L., Terrasa, Barcelona, Spain) which is based on the double-pass technique. RESULTS: There were no significant differences in the spherical equivalent, UCVA, BCVA, and OSI between the 2 groups. However, both the MTF cut-off, and Strehl ratio showed statistically significant differences. The MTF cut-off (28.0 +/- 7.79 vs. 20.4 +/- 9.51 c/deg, p = 0.025) and Strehl ratio (0.14 +/- 0.04 vs. 0.12 +/- 0.05, p = 0.042) were higher in the Tecnis(R) ZCB00-implanted group. CONCLUSIONS: The difference in characteristics of intraocular lenses subtly affects the vision quality as measured by values such as MTF cut-off and Strehl ratio after cataract surgery. OQAS based on the double-pass technique is considered useful in more objective estimates of the real retinal image quality after cataract surgery which is difficult to explain simply by measuring visual acuity.
