EFFECT OF NEODYMIUM - YAG LASER PHOTODISRUPTION ON INTRAOCULAR LENSES INVITRO

被引：14

作者：

JOO, CK

KIM, JH

机构：

[1] Department of Ophthalmology, Catholic University Medical College, Seoul

来源：

JOURNAL OF CATARACT AND REFRACTIVE SURGERY | 1992年 / 18卷 / 06期

关键词：

IRRADIATION; ND-YAG LASER; POLY(HYDROXYETHYL METHACRYLATE); POLY(METHYL METHACRYLATE); SILICONE;

D O I：

10.1016/S0886-3350(13)80443-9

中图分类号：

R77 [眼科学];

学科分类号：

100212 ;

摘要：

Poly(methyl methacrylate) (PMMA) based intraocular lenses (IOLs) such as injection-molded PMMA and lathe-cut PMMA IOLs and soft IOLs such as silicone and poly(hydroxyethyl methacrylate)(polyHEMA) IOLs were tested for vulnerability to Nd:YAG laser photodisruption. The laser beam was focused on the posterior surface and inside of the IOLs in balanced salt solution. Cracks and central defects with radiating fractures were observed in PMMA IOLs; blistered lesions and localized pits were observed in silicone and polyHEMA IOLs, respectively. A molten edge surrounding the large hole, which was an indication of the thermal effect of the laser, was observed in the injection-molded PMMA while only a minute lesion was found in the polyHEMA IOL which contained 38% water. The size of the superficial damage of the IOL increased as the power of laser irradiation increased and PMMA IOLs showed greater damage than soft IOLs (P < .05).

引用

页码：562 / 566

页数：5

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