文章基本信息

标题：Wavefront and Visual Function Analysis After Aspherical and Spherical Intraocular Lenses Implantation
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作者：Ahn, Hyunseok ; Kim, Sun Woong ; Kim, Eung Kweon 等
期刊名称：Journal of the Korean Ophthalmological Society
印刷版ISSN：0378-6471
出版年度：2008
卷号：49
期号：8
页码：1248-1255
DOI：10.3341/jkos.2008.49.8.1248
语种：Korean
出版社：The Korean Ophthalmological Society
摘要：Purpose
To compare postoperative wavefront aberration and visual functions between aspherical Tecnis Z9003, a new acrylic aspheric intraocular lens (IOL), and spherical AcrySof SA60AT IOL.
Methods
Fifty patients (56 eyes) who underwent cataract extraction and were implanted with spherical or aspherical IOLs were randomly evaluated by wavefront analysis, including an examination of spherical aberration and higher-order aberrations using two different types of aberrometers (ray tracing and automatic retinoscope), manifested refraction, a contrast sensitivity test, and modulation transfer function (MTF), three months after surgery.
Result
There were no statistically significant differences of spherical equivalent and best-corrected visual acuity between the two different IOL groups. However, the aspherical IOL group showed less spherical aberration and better contrast sensitivity and MTF than the spherical IOL group.
Conclusions
Tecnis Z9003 could compensate for positive spherical aberrations of the cornea and improve contrast sensitivity and MTF, thereby improving visual function.
关键词：Aspheric intraocular lens; Contrast sensitivity; Modulation transfer function; Spherical aberration; Visual function