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Optics grooves on intraocular lens optics and anterior capsulorhexis contraction

Poster Details

First Author: M.Nagata JAPAN

Co Author(s):    H. Matsushima   N. Nishida   T. Senoo              

Abstract Details


Evaluation of capsulorhexis contraction postoperatively in two different hydrophobic acrylic intraocular lenses (IOLs) having peripheral grooves.


Department of Ophthalmology, Dokkyo Medical University, Tochigi, Japan.


The study was conducted on 47 eyes that had undergone cataract surgery. ZCB00V (AMO) or SZ-1 (NIDEK) were randomly selected and implanted after phacoemulsification. Anterior retro illumination images were photographed using slit lamp and EAS1000 (NIDEK) at 1 weeks, 1 month and 3 months postoperatively. Capsulorhexis opening area were analyzed and the ratios of area were compared. After that, fibrosis of anterior capsule were also measured using area analysis software (Area Q, S-Tech) after 3 months postoperatively. Unpaired t-test was used for statistically analysis.


Reduction rate of capsulorhexis opening area were 1.03±2.54% (ZCB00V) and 4.23±6.19% (SZ-1) after 3 months postoperatively. The area of fibrosis in anterior capsule were 16.9±8.3% (ZCB00V) and 13.6±11.1% (SZ-1).


The reduction rate of capsulorhexis opening area were insufficient after implanting ZCB00V and SZ-1. Peripheral optics grooves on IOLs may prevent capsulorhexis contraction.

Financial Disclosure:

research is funded, fully or partially, by a company producing, developing or supplying the product or procedure presented

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