方法：将高度硬核白内障患者83例93眼随机分为两组，分层乳化劈裂白内障超声乳化组(A组)43例47眼，常规超声乳化组(B组)40例46眼。比较两组术中后囊破裂情况、术后第1，7d最佳矫正视力、角膜水肿程度及术后1mo平均角膜内皮细胞丢失。

结果：A组术中后囊破裂情况、术后第1，7d最佳矫正视力、角膜水肿程度及术后1mo平均角膜内皮细胞丢失均明显好于B组。

结论：分层乳化劈裂技术在高度硬核白内障超声乳化术中应用，对眼内组织损伤小，破后囊率低，并发症少，使眼部条件较差的高度硬核白内障患者获得较为理想的手术效果，是一项具有应用价值的技术。

METHODS: Totally 43 cases(47 eyes)of highly hard nuclear cataract was performed cataract extraction combined IOL implantation with stratified emulsion splitting cataract ultrasonic emulsification technology.

RESULTS:Postoperative visual acuity 1 day, 1 week and 1 month best-corrected visual acuity ≥0.5 was accounted for 70.21%, 87.23% and 89.36%. Intraoperative capsule rupture was found in 2 eyes. Corneal mild edema was found in 7 eyes(14.89%)after the first l day post-operation.

CONCLUSION:Stratified emulsion splitting technique has a practical application with little tissue damage, low capsular rupture rate and few complications for highly hard nuclear cataract patients and can bring a desirable outcome.