Shigemori S, Nagata T, Onodera T
Eye clinic, Haibara General Hospital, Japan.
Nippon Ganka Gakkai Zasshi. 1993 Jun;97(6):721-5.
We compared the effect of intraocular lens (IOL) length and its design on the anterior chamber depth (ACD) change during contraction and relaxation of the ciliary muscle. We performed phacoemulsification or extra capsular cataract extraction using continuous circular capsulorhexis on 100 eyes, and implanted in 23 eyes a short one-piece IOL, in 22 eyes a short three-piece IOL, in 25 eyes a long one-piece IOL, and in 30 eyes a long three-piece IOL. All IOLs were fixed in the capsular bag. ACD changes after administration of 2% pilocarpine and 1% cyclopentolate were measured with a pachymeter between 3 and 6 months postoperatively. The compatibility of the IOLs with ciliary muscle contraction and relaxation was, in descending order, the short one-piece IOL, the short three-piece IOL, the long one-piece IOL, and the long three-piece IOL. The results indicated that short IOLs are more physiologically fixed in the capsular bag, with less stress on the zonules of Zinn.
我们比较了人工晶状体（IOL）的长度及其设计对睫状肌收缩和舒张过程中前房深度（ACD）变化的影响。我们对100只眼进行了连续环形撕囊的超声乳化白内障吸除术或囊外白内障摘除术，并在23只眼中植入了短的一体式IOL，22只眼中植入了短的三件式IOL，25只眼中植入了长的一体式IOL，30只眼中植入了长的三件式IOL。所有IOL均固定于囊袋内。术后3至6个月，使用测厚仪测量给予2%毛果芸香碱和1%环喷托酯后ACD的变化。IOL与睫状肌收缩和舒张的相容性由高到低依次为短的一体式IOL、短的三件式IOL、长的一体式IOL和长的三件式IOL。结果表明，短IOL在囊袋内的生理固定性更好，对晶状体悬韧带的张力更小。
