extracapsular extraction of cataract

例句：

1. 1. The extracapsular extractionof cataract is a common surgicalprocedure for treating glaucoma.
   白内障的外囊摘除术是治疗青光眼的常见手术。
2. 2. During thesurgery, the surgeon carefully removes thelens and the capsule from the eye.
   在手术中，外科医生小心地从眼睛中取出晶状体和囊膜。
3. 3. This procedure is often performed to relievepressure on the optic nerve, whichcan lead to vision loss.
   这种手术通常用于减轻对视神经的压力，可能导致视力丧失。