人工晶状体
眼科
材料科学
医学
人工晶状体
戒指(化学)
作者
John Zdral,Liliana Werner,Nick Mamalis,Sneha Bontu,Sean Kennedy,Bonnie An Henderson
出处
期刊:Journal of Cataract and Refractive Surgery
[Ovid Technologies (Wolters Kluwer)]
日期:2021-04-01
卷期号:47 (4): 516-521
被引量:1
标识
DOI:10.1097/j.jcrs.0000000000000478
摘要
Purpose To determine whether a newly modified capsular tension ring (CTR) is effective at preventing toric intraocular lens (TIOL) rotation and misalignment. Setting John A. Moran Eye Center, University of Utah, Salt Lake City, Utah, USA. Design Experimental study. Methods Ten human cadaver eyes were used to test the ease or difficulty of TIOL rotation in the capsular bag under 3 experimental conditions: a TIOL alone, a TIOL with a standard CTR, or a TIOL with a newly modified CTR with indentations in a sinusoidal pattern. Scores for the ease of IOL rotation were compared by using the nonparametric Friedman analysis of variance test. In addition, both anterior and posterior Miyake-Apple views were filmed to observe the rotational stability of TIOLs in the capsular bag under the 3 test conditions. Results In the ten eyes of five patients, the rotational stability improved with a standard CTR, but further improvement was statistically observed (P Conclusions A newly designed CTR prototype represents a new technology for improving the rotational stability of a TIOL in the capsular bag. Under all test conditions, the prototype performed significantly better than a standard CTR. The results support the use of this new CTR design to improve the accuracy and refractive success of TIOLs.
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