Miyata Kazunori, Kato Satoshi, Nejima Ryohei, Miyai Takashi, Honbo Masato, Ohtani Shinichiro
Miyata Eye Hospital, Miyakonojo, Japan.
Acta Ophthalmol Scand. 2007 Feb;85(1):99-102. doi: 10.1111/j.1600-0420.2006.00758.x.
To investigate the influence of optic edge design on posterior capsule opacification (PCO) and anterior capsule contraction (ACC).
A total of 43 eyes of 43 patients scheduled to undergo cataract surgery were included in this study. Patients received either a Sensor AR40 intraocular lens (IOL) or a Sensor AR40e IOL. The area of the anterior capsule opening (ACO) was determined by diaphanoscopy using the anterior eye segment analysis system EAS-1000 at 1 day, 1 week and 1, 3, 6 and 12 months postoperatively. Posterior capsule opacification was evaluated objectively in two ways, using either the EAS-1000 or POCOman.
There was no significant difference between the two groups in either ACO area or percentage reduction of ACO area at any time-point after surgery. The difference in the degree of PCO 1 year after surgery was not significant when measured by either the EAS-1000 or POCOman.
A sharp IOL edge is required to prevent PCO. Sharp-edged IOLs do not appear to be a risk factor for ACC.
研究光学边缘设计对后囊膜混浊（PCO）和前囊膜收缩（ACC）的影响。
本研究纳入了43例计划行白内障手术患者的43只眼。患者分别植入Sensor AR40人工晶状体（IOL）或Sensor AR40e IOL。使用眼前节分析系统EAS - 1000通过透照法在术后1天、1周以及1、3、6和12个月测定前囊开口（ACO）面积。采用EAS - 1000或POCOman两种方法客观评估后囊膜混浊情况。
两组在术后任何时间点的ACO面积或ACO面积减少百分比方面均无显著差异。术后1年，通过EAS - 1000或POCOman测量的PCO程度差异均不显著。
需要锐利的IOL边缘来预防PCO。边缘锐利的IOL似乎不是ACC的危险因素。
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