人工晶状体囊袋夹持固定法在后囊破裂中的应用

目的观察囊袋夹持固定法植入人工晶状体治疗白内障手术中晶状体后囊破裂的效果。方法通过完全居中的、大小适宜的前囊连续环行撕囊，利用囊袋夹持固定法(人工晶状体光学部完全植入囊袋内而2个袢位于前囊前表面)使人工晶状体达到稳定的囊袋固定，以处理白内障手术中发生的后囊破裂。分别对接受囊袋夹持法的13眼老年性白内障患者、4眼外伤性白内障患者、3眼先天性白内障患者进行随访观察。结果术后随访平均视力大于等于0．5的患者17眼(85％)，夹持于囊袋的人工晶状体能够保持良好、稳定的居中位置，后囊破裂的大小稳定，所有术眼均未出现人工晶状体相关的葡萄膜反应。结论在后囊破裂较大，无法将人工晶状体植入囊袋内时，可以利用前囊撕囊孔进行囊袋内夹持固定法固定人工晶状体。良好的前囊连续环行撕囊不仅可以保证手术的安全性，而且是囊袋夹持法固定人工晶状体的必要条件。

Application of capsular capture fixation of intraocular lens to posterior capsular rupture

Objective To observe the application of capsule capture fixation of IOL to deal with the posterior capsular rupture during cataract operation. Methods By completely centered, suited-size anterior continuous circular capsularhexis, capsular capture fixation (the whole optic located in the capsule, while the haptics before the anterior capsule) was applied to deal with posterior capsular rupture during cataract operation so that the intraocular lens (IOL) could be fixed consistently in the capsule. Twenty patients including 13 eyes suffering from senile cataract, 4 eyes from traumatic cataract, 3 eyes from congenital cataract were performed with capsular capture,and were followed-up. Results After 12-month of follow-up, 17 eyes (85%) attained final best corrected visual acuity (BCVA) better than or equal to 0. 5. The main causes of the BCVA less than 0. 5 were corneal trauma, amblyopia, age-related macu-laropathy,respectively.The IOL captured in the capsule could be kept well consistently centered, at the same time the size of posterior capsule rupture remained invariable. No uveal reaction related to the IOL occurred. Conclusion When the size of posterior capsule rupture was larger and the IOL could not be implanted in the capsule, the capsule capture fixation should be applied to fix the IOL in the capsule. Perfect anterior continuous circular capsulorrhexis not only could ensure the safety of phacoemulsifi-cation but also be requisition of capsule capture fixation.