青年尸眼连续环形撕后囊的研究

STUDY OF POSTERIOR CONTINUOUS CURVILINEAR CAPSULORHEXIS IN YOUTH

目的：研究青壮年连续环形撕后囊的优点及方法。方法：将90只青年尸眼（平均26．17岁）随机分为后囊中央线状切开组及连续环形撕后囊（PCCC）组处理后囊膜，然后注水提高玻璃体腔压力至玻璃体脱出，观察后囊膜变化情况。结果：前组全部出现切口延长，至少一端到达赤道部，平均注水量1．01ml；后组撕开口边缘完整，无放射状撕裂，直径增大了1．13mm，注水量为1．51ml，两组注水量比较有显著意义。结论：连续环形后囊撕开口较线形切开口有更强的抗张性。

To study the advantages and methods of posterior continuous curvilinear capsulorhexis (PCCC) in youth. Methods: Two different kinds of methods were randomly used in the posterior capsule (PC) of 90 youth cadaver eyes (mean age: 26. 17 years).① Linear cut in PC and ②PCCC, then observed the changes of PC when we injected water to increase intravitreous pressure until vitreous prolapse oc-cured. Results: The first group had peripheral extension of the PC tear in all of the cases and the mean quantity of the injected water was 1. 01 ml; the second group didn't show radial tears and the diameter of PCCC in-creased to 1. 13 mm, and its mean quantity of the injected water was 1. 51 ml. The differences between the two groups were statistically significant. Conclusion: The stretching power of the PCCC is stronger than that of the linear cut.