Comparison of Optical Quality Between Two Intraocular Lenses Using Double-Pass Based Optical Quality Analysis System
Journal of the Korean Ophthalmological Society
;
: 1818-1823, 2013.
Article
in Korean
| WPRIM
| ID: wpr-208505
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.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Retinaldehyde
/
Cataract
/
Visual Acuity
/
Lenses, Intraocular
Language:
Korean
Journal:
Journal of the Korean Ophthalmological Society
Year:
2013
Type:
Article
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