目的：评价囊袋张力环联合虹膜拉钩在外伤性白内障晶状体半脱位超声乳化手术中的有效性及安全性。

方法：对我院2011-01/2014-09收治的21例21眼外伤性白内障合并晶状体半脱位患者行超声乳化白内障吸除术，术前患眼悬韧带离断范围在6个钟点范围以内，术中连续环形撕囊后，根据悬韧带离断范围大小使用1～4个虹膜拉钩，水分离、水分层，超乳劈核法吸除白内障，术中不同时期植入囊袋张力环，植入后房型人工晶状体。观察术前、术后视力、眼压、瞳孔及术中有无玻璃体脱出、囊袋撕裂情况和悬韧带离断范围有无扩大。

结果：患者21例术后随访3～12mo，随访终末期矫正视力：<0.3者1眼，0.4～0.7者15眼，>0.8者5眼； 眼压均在正常范围以内。20例患者人工晶状体位正，光学区中央位于视轴处，无严重眼部并发症； 1例因自发性囊袋破裂，人工晶状体坠入玻璃体腔，后行玻璃体切除和悬吊术处理。

结论：在虹膜拉钩和/或囊袋张力环的辅助下，通过设置合理的超声乳化参数，能够较好地完成悬韧带离断范围小于6个钟点的白内障超声乳化手术，术后效果满意。

AIM: To evaluate the clinical efficacy and safety of capsular tension ring(CTR)combined with iris hooks in eyes with large traumatic zonular dialysis or weakness that underwent micro-incision coaxial phacoemulsification with posterior chamber(PC)intraocular lens(IOL)implantation.

METHODS: This prospective study was carried on 21 patients(21 eyes)with traumatic cataract and traumaticzonular dialysis(<180 degrees determined pre- or intra-operatively)in our hospital from January 2011 to September 2014. After CCC, 1-4 iris hooks might be used probably and a in-the-bag CTR was inserted in order to maintain or re-establish an extended capsular diaphragm before or at any time during cataract removal. Then micro-incision coaxial phacoemulsification with foldable acrylic PC IOL implantation was performed. Zonular dialysis range, posterior capsule rupture, vitreous loss, pupil size, best corrected visual acuity(BCVA), intraocular pressure(IOP)in the pre- and post-operative periods and postoperative IOL decentration were observed after operation.

RESULTS: The mean follow-up period was 3～12mo. No serious postoperative complication was found. BCVA in our cases: <0.3 in 1 eye, 0.4～0.7 in 15 eyes, >0.8 in 5 eyes. IOPs were in normal range too. The IOLs in 20 eyes remained the required position to the final follow-up examination except one eye in which the PC IOL was dislocated into vitreous cavity due to a postoperative spontaneity PCR, and in which vitrectomy and IOL suture fixation was performed.

CONCLUSION: In cases of cataract associated with traumatic zonular dialysis(<180°), by setting the rational parameters of phacoemulsification, the CTR and iris hooks are found to be efficient in preventing IOL decentration and reducing operation complication. In our cases, the CTR combined with iris hooks is relatively safe application.