膜性自内障的病例,有一部分为青少年眼球穿通孔,致晶体受伤之结果;一部分为先天性或青年性白内障手术后所形成。手术在一定的意义上说,也是外伤;当晶体外伤或手术后,残留囊膜或加之少许皮质,再有炎症机化物,即形成膜性白内障(以下简称膜障)。另有甚少数的白内摘除手术后病例,因炎症所形成的第三白内障(Tertiary Cataract)亦应属于膜障之范畴。 Film from the cataract cases, part of the young people through the hole, resulting in the result of crystal injury; part of congenital or young cataract surgery formed. Surgery in a certain sense, but also trauma; when the crystal trauma or surgery, the residual capsule or a small amount of cortex, and then the inflammatory machine, the formation of membranous cataract (hereinafter referred to as the membrane barrier). In addition, a small number of cases after enucleation surgery, Tertiary Cataract due to inflammation, should belong to the category of membrane barrier.