Contrast sensitivity of aspheric and standard spherical intraocular lens after phacoemulsification
- VernacularTitle:非球面晶状体与传统球面晶状体植入术后对比敏感度的研究
- Author:
Ren-Feng, XU
;
Li-Li, WANG
;
Zhen-Ping, HUANG
;
Yong, WU
- Publication Type:Journal Article
- Keywords:
functional vision;
contrast sensitivity;
intraocular lens;
cataract
- From:
International Eye Science
2007;7(2):319-321
- CountryChina
- Language:Chinese
-
Abstract:
AIM:To compare the contrast sensitivity obtained through anterior surface modified prolate intraocular lens with the contrast sensitivity obtained through standard spherical intraocular Iens.METHODS:Patients presenting for cataract surgery in one eye were randomized to receive either the Acrysef IQ intraocular lens(AIcon)or the AR40e intraocular lens(AMO).50 eyes after phacoemulsification with IOL implantation were included,23 eyes received Acrysof IQ,and 27 eyes received AP40e intraocular lens (AMO).Contrast sensitivity testing under photopic conditions (85cd/m2)served as the prindpal outcome measure.The contrast sensitivity function was measured with CSV-1000E Vision Testing Instrument(provided by VECTOR ⅥSION COMPANY) at 30 days after surgery.RESULTS:The Acrysof IQ intraocular lens provided statistically significantly better contrast sensitivity at 6,12 and 18 cydes per degree under photopic conditions.CONCLUSION:The use of anterior surface modified prolate intraocular lens for cataract surgery has the potential to improve functional vision.
