作者用显微手术成功地进行了615例874眼老年性白内障摘出术,术前无青光眼经过10个月到6年的观察,发现在874眼中有16眼(1.8％)发生无晶体性青光眼。在这16眼中,7眼(44％)为瞳孔阻滞,6眼(37％)为施氏管阻滞,3眼(19％)为前房角阻滞,而无一例发现睫状环阻滞。 (一)瞳孔阻滞:7眼中有6眼手术时只作了虹膜切开,而未作虹膜切除,故提出:不作虹膜切除是本组病例发生玻璃体疝,形成瞳孔阻滞的主要原因。由于采用显微手术使创口闭合良好,在这7眼中只有1眼发生术后浅前房,故认为术后浅前房是引起瞳孔阻滞的次要原因。其中6眼在眼压升高以前出现玻璃体疝不断向前突 The authors successfully performed 615 cases of 874 senile cataract extraction using microsurgery. No preoperative glaucoma was observed after 10 months to 6 years, and 16 eyes (1.8%) of 874 eyes were found to have aphakic glaucoma. Of the 16 eyes, 7 eyes (44%) had pupillary block, 6 eyes (37%) had Shihlin block and 3 eyes (19%) had anterior chamber angle block, and none of them showed ciliary loop resistance Hysteresis (A) Pupillary block: 6 eyes in 7 eyes only made iris incision surgery, but not for iris resection, it is proposed: not for iris resection is the case of vitreous hernia, the formation of pupillary block the main reason. Due to the use of microsurgery to make the wound closed well, only one of the seven eyes had a shallow anterior chamber after surgery, so that the postoperative shallow anterior chamber is the secondary cause of pupillary block. Six of them had anterior protrusion of vitreous hernia before the intraocular pressure increased