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急性闭角型青光眼最危险的情况之一是在发作时不能用药物降低眼压。这是由于闭角型青光眼者的角膜曲率半径比正常人小,前房浅,晶体位置靠前和晶体厚度增加。房角关闭的眼前房深度平均比正常眼浅1mm,其中0.65mm是晶体前移引起的,0.35mm是由晶体厚度增加所致。毛果芸香碱能减少前房深度和角膜曲率半径,并增加晶体轴长,故闭角型青光眼急性发作时用该药一般无效。当眼压显著增高且有炎症时,做周边虹膜切除比眼压恢复正常时手术更具危险,术中及术后并发症也多。目前用氩激光治疗可阻止急性发作,其方法有三:周边虹膜成形术、瞳孔成形术和激光虹膜切除术。作者用上述方法之一或综合使用治疗7例对药物治疗无效的闭角型青光眼发
One of the most dangerous conditions in acute angle-closure glaucoma is the lack of medication to reduce IOP during the episode. This is due to angle-closure glaucoma who corneal curvature radius smaller than normal, shallow anterior chamber, the location of the crystal front and the increase in crystal thickness. The anterior chamber depth of closure of the anterior chamber is, on average, 1 mm less than normal, with 0.65 mm being caused by the advancement of the lens and 0.35 mm being due to an increase in the thickness of the lens. Pilocarpine can reduce the depth of the anterior chamber and corneal curvature radius, and increase the crystal axis length, so the angle closure glaucoma acute attack with the drug generally ineffective. When the intraocular pressure was significantly increased and there is inflammation, peripheral iridotomy is more dangerous than normal intraocular pressure to restore surgery, intraoperative and postoperative complications are also more. Currently argon laser treatment can stop the acute attack, which has three methods: peripheral iridoplasty, pupil angioplasty and laser iridectomy. The authors use one of the above methods or a combination of treatment of 7 cases of closed angle-type glaucoma