老年性成熟期白内障手术方式目前多采用现代囊外摘除,其晶体囊膜及悬韧带尚能保持一定的张力和韧性,这是完成现代囊外摘除与人工晶体植入的基本条件。但对于过熟期白内障而言,则欠缺这种条件,其皮质大多液化,囊膜变厚而皱缩,失去原有张力而松弛,晶体悬韧带脆性增加易断,晶状体 At present, modern extracapsular cataract surgery mostly uses modern extracapsular cataract extraction, and its crystal capsule and suspensory ligament can still maintain a certain tension and toughness, which is the basic condition for completing modern extracapsular excision and intraocular lens implantation. However, for over-mature cataract, is the lack of such conditions, most of its liquefaction of the cortex, the capsule thickening and shrinkage, loss of tension and relaxation of the original, the crystal suspensory ligament fragility increases easily broken, the lens