在无并发症、药物治疗无效的开角型青光眼,滤过手术一般能满意地控制眼压。但在某些病例中,如青年性开角型青光眼,各种继发性青光眼其手术成功率较前者低,且青光眼手术第一次失败再行第二次滤过术者,其成功率更低。各种年龄且无并发症的无晶体眼中,滤过术的效果亦差,原因尚不清楚。滤过泡的形成和保持的机理尚不明瞭。在成 In the absence of complications, drug treatment ineffective open angle glaucoma, filtration surgery can generally control the intraocular pressure with satisfaction. However, in some cases, such as young patients with open-angle glaucoma, all kinds of secondary glaucoma, the success rate of the operation was lower than the former, and the first failure of glaucoma surgery and then the second filter, the success rate is more low. The effect of filtration is also poor in all age-free and uncomplicated aphakia, the reason for which is unclear. The mechanism by which blebs are formed and maintained is not known. Into