摘要
目的 研究激光小梁成形术机理 ,进一步推广其在临床的应用。方法 对氩激光、倍频 Nd:YAG激光、半导体激光小梁成形术后 10 d、1m o、6 m o的猴眼房角进行组织学观察和比较。结果 激光小梁成形术后光凝区的小梁被破坏 ,前房侧小梁表面出现一从角膜内皮细胞延伸过来的细胞层。三种波长激光都能有效地进行小梁成形术 ,其中半导体激光所造成的损伤较其他 2种大。结论 房水流出阻力下降 ,房水流出量的增加可能与光凝区前房侧小梁网表面的细胞层和非光凝区小梁间隙增大、Schlem m管扩张有关。
Objective To study the mechanism of the laser trabeculoplasty(LTP) and promote its clinical use. Methods The laser trabeculoplasty was performed in 4 rhesus monkey (8 eyes)with the argon laser, the diode laser and frequency doubled Nd: YAG laser (“532” laser).The histopathologic changes were observed and compared 10 days, 1 month, and 6 months after the operation.Results The trabecular meshwork in the lasered photocoagulation spots were destroyed. The surface of uveal meshwork was covered by a cellular sheet extending from the corneal endothelium. Tabeculoplasty with 3 wavelength lasers was effective. The histologic destroy in diode laser group was deeper than that in other two laser groups.Conclusion The increasment of the flow of the aqueous humor is relative to the enlargement of the intertrabecular spaces and the dilatation of the Schlemm canal in the non photocoagulation regions and the cellular sheet of the surface of uveal meshwork in the photocoagulation regions.
出处
《眼科新进展》
CAS
2000年第4期243-245,共3页
Recent Advances in Ophthalmology
基金
上海市科委科研基金!资助 (编号 9741190 13)
关键词
开角型青光眼
氢激光
半导体激光
ND:YAG激光
primary open angle glaucoma
argon laser
diode laser
frequency double Nd: YAG laser
trabeculoplasty
histopathology
