钻石刀和钢刀所致角膜切口与准分子激光两种紫外线辐射的比较研究

Marshall J, Trokel S, Rothery S, Krueger R R

Br J Ophthalmol. 1986 Jul;70(7):482-501. doi: 10.1136/bjo.70.7.482.

This paper reviews the potential role of excimer lasers in corneal surgery. The morphology of incisions induced by two wavelengths of excimer laser radiation, 193 nm and 248 nm, are compared with the morphology of incisions produced by diamond and steel knives. Analysis suggests that ablation induced by excimer laser results from highly localised photochemical reactions and that 193 nm is the optimal wavelength for surgery. The only significant complication of laser surgery is loss of endothelial cells when incisions are within 40 micron of Descemet's membrane.

本文综述了准分子激光在角膜手术中的潜在作用。比较了193纳米和248纳米两种波长的准分子激光辐射所诱导切口的形态与金刚石刀和钢刀所产生切口的形态。分析表明，准分子激光诱导的消融是由高度局部化的光化学反应引起的，并且193纳米是手术的最佳波长。激光手术唯一显著的并发症是当切口距离后弹力层膜40微米以内时内皮细胞的损失。