Findl O, Drexler W, Menapace R, Bobr B, Bittermann S, Vass C, Rainer G, Hitzenberger C K, Fercher A F
Universitätsklinik für Augenheilkunde, Allgemeines Krankenhaus Wien, Austria.
J Cataract Refract Surg. 1998 Aug;24(8):1094-8. doi: 10.1016/s0886-3350(98)80103-x.
To measure effective lens position (ELP) of 4 intraocular lenses (IOLs) using high precision and high resolution dual-beam partial coherence interferometry (PCI) and to assess the tendency of these IOLs to produce a lens-capsule distance (LCD), a possible risk factor for posterior capsule opacification.
Department of Ophthalmology, Vienna General Hospital; Institute of Medical Physics, University of Vienna, Austria.
In a retrospective study, PCI was used to measure ELP and LCD in 139 pseudophakic eyes of 110 patients with 4 IOLs: acrylic 3-piece IOL (AcrySof MA60BM); silicone 3-piece IOL without a capsular tension ring (PhacoFlex SI30) and with a capsular tension ring (PhacoFlex SI30 and Morcher Type 14); silicone plate-haptic IOL (Staar AA4203VF); and a hydrogel plate-haptic IOL (logel 1103).
The ELP and LCD were determined with a precision of approximately 3 to 4 microns. An LCD was detected in 21% eyes with the AcrySof, 20% of eyes with the SI30 without a capsular tension ring, 10% of eyes with a capsular tension ring, 21% of eyes with the Staar, and 17% of eyes with the logel. The LCDs detected by PCI, but not by slitlamp examination, were significantly smaller than those detected by both.
The amount of LCD detected by PCI was approximately the same with all IOL types (approximately 20%) except the PhacoFlex SI30 with a capsular tension ring (10%).
使用高精度和高分辨率双光束部分相干干涉测量法（PCI）测量4种人工晶状体（IOL）的有效晶状体位置（ELP），并评估这些IOL产生晶状体-囊袋距离（LCD）的趋势，LCD是后囊膜混浊的一个可能危险因素。
维也纳总医院眼科；奥地利维也纳大学医学物理研究所。
在一项回顾性研究中，使用PCI测量了110例患者139只假晶状体眼的ELP和LCD，这些眼睛植入了4种IOL：丙烯酸三件式IOL（AcrySof MA60BM）；无囊袋张力环的硅胶三件式IOL（PhacoFlex SI30）和有囊袋张力环的硅胶三件式IOL（PhacoFlex SI30和Morcher 14型）；硅胶板襻IOL（Staar AA4203VF）；以及水凝胶板襻IOL（logel 1103）。
ELP和LCD的测量精度约为3至4微米。在植入AcrySof的眼中，21%检测到LCD；在无囊袋张力环的SI30眼中，20%检测到LCD；在有囊袋张力环的眼中，10%检测到LCD；在植入Staar的眼中，21%检测到LCD；在植入logel的眼中，17%检测到LCD。PCI检测到但裂隙灯检查未检测到的LCD明显小于两者均检测到的LCD。
除带囊袋张力环的PhacoFlex SI30（10%）外，PCI检测到的所有IOL类型的LCD量大致相同（约20%）。
