青光眼具有病因复杂 ,病情多变 ,个体差异大的特点 ,是一类致盲率高 ,治疗比较困难的眼病。随着眼科的发展 ,科技的进步 ,相当多的青光眼患者通过的药物或激光等治疗就能控制病情。但仍有为数不少的青光眼患者尚需手术治疗。小梁切除术是目前最普遍应用的眼外滤过术式。小梁切 Glaucoma with complex causes, changing conditions, the characteristics of large individual differences, is a class of high blindness, the treatment of more difficult eye disease. With the development of ophthalmology, advances in technology, a considerable number of glaucoma patients through the treatment of drugs or lasers can control the disease. But there are still a large number of glaucoma patients still need surgery. Trabeculectomy is the most common application of extra-ocular filtration surgery. Trabecular cut