Shepard D D
Ophthalmic Surg. 1977 Oct;8(5):93-5.
The author implanted 500 intraocular lenses (IOLs) during intracapsular surgery. Data from the 60 lenses with metal posterior loops showed a markedly high incidence of complication compared to plastic loops: twice as many overall complications, three times the cystoid mascular edema, three times the rate for subsequent corrective surgical procedures, and 30 times more IOLs had to be removed. IOL manufacturers are advised to abandon metal loops for intracapsular implantation. Polypropylene is suggested as the apparent ideal loop material.
作者在囊内手术中植入了500枚人工晶状体（IOL）。60枚带有金属后襻的晶状体的数据显示，与塑料襻相比，并发症发生率显著更高：总体并发症多出一倍，囊样黄斑水肿多出两倍，后续矫正手术的发生率多出两倍，必须取出的人工晶状体多出30倍。建议人工晶状体制造商放弃用于囊内植入的金属襻。聚丙烯被认为是理想的襻材料。
