双向劈核法在硬核白内障超声乳化手术中的应用

Application of anteroposterior interceptive chop in phacoemulsification for hard nucleus cataract

目的:探讨前后夹击双向劈核法在硬核白内障超声乳化手术中的应用效果。方法:对219例(271眼)级以上硬核白内障采取前后夹击劈核法,经充分水分离和水分层,吸除硬核前的皮质及软核后,乳化头退至前囊口上缘,劈核器轻压核下方,停止灌注让核上缘随前房变浅脱出囊袋口,乳化头顺势抵住核上缘,灌注加深前房后,乳化头滑入核后面,劈核器置核前面,前后夹击将核劈碎乳化吸出。结果:271眼硬核都被顺利击碎,平均乳化时间为57.4s,术后1d视力≥0.3者249眼(91.9%),术后1mo视力≥0.5者235眼(86.7%),≥1.0者96眼(35.4%)。结论:硬核白内障超声乳化手术中双向劈核法碎核彻底、操作简便、安全有效,为粉碎硬核的一种好方法。

AIM：To evaluate the effect of anteroposterior interceptive chop in phacoemulsification for hard nucleus cataract. METHODS：Two hundred and seventy-one eyes of 2.19 patients with hard nucleus cataract, grading level Ⅳ or Ⅴ, were operated with anteroposterior interceptive chop method for splitting the nucleus, and then with phacoemulsification. RESULTS：The hard nucleus of the 271 eyes were successfully routed. The average phaco time was 57.4 s. Postoperatively, the number of patients with visual acuity ≥0.3 was 91.9% at postoperative 1 day, ≥0.5 in 86.7% patients and ≥ 1.0 in 35.4% patients at postoperative 1 month. CONCLUSION：Anteroposterior interceptive chop for splitting nucleus in phacoemulsification is an effective, convenient and safe method to operate on hard nucleus cataract.