目的：探讨不同劈核技术对年龄相关性白内障超声乳化术疗效的影响。

方法：选取2015-01/2018-01本院收治的年龄相关性白内障患者200例264眼，依据随机数字表法分为拦截组(100例130眼)和钩法组(100例134眼)。拦截组给予拦截劈核技术完成超声乳化术，钩法组给予钩法预劈核技术完成超声乳化术，比较两组患者实际超声乳化时间(US/TIME)、累积释放能量(cumulative release energy，CDE)、最佳矫正视力、角膜水肿程度、并发症。

结果：钩法组US/TIME、CDE明显低于拦截组，差异有统计学意义(P<0.05)； 钩法组术后1、3d最佳矫正视力明显高于拦截组，而角膜水肿程度明显低于拦截组，差异有统计学意义(P<0.05)。拦截组和钩法组术后7d最佳矫正视力、角膜水肿程度比较，差异无统计学意义(P>0.05)。钩法组并发症发生率明显低于拦截组，差异有统计学意义(P<0.05)。

结论：与拦截劈核技术比较，钩法预劈核技术可有效减少年龄相关性白内障患者超声乳化术的US/TIME、CDE，有利于尽早改善患者最佳矫正视力、角膜水肿程度，且可有效减少并发症。

METHODS: Totally 200 elderly patients(264 eyes)with age-related cataract were selected from January 2015 and January 2018 in our Hospital, according to the random digital table method, they were divided into the interceptor group(100 patients 130 eyes)and the hook group(100 patients 134 eyes). Interceptor group was given interceptor chopping techniques to complete phacoemulsification; the hook group was given hook pre-chopping techniques to complete phacoemulsification. The actual phacoemulsification time(US/TIME), the cumulative release energy(CDE), the best corrected visual acuity, the corneal edema degree, the complication were compared in the two groups.

RESULTS: The US/TIME and CDE in the hook group were significantly lower than those in the interceptor group, the difference was statistically significant(P<0.05). The 1 and 3d postoperative best corrected visual acuity in the hook group were significantly higher than those in the interceptor group, the 1 and 3d postoperative corneal edema degree in the hook group were significantly lower than those in the interceptor group, the difference was statistically significant(P<0.05). The comparison of the 7d postoperative best corrected visual acuity and corneal edema degree in the interceptor group and the hook group, there was no statistically significant difference(P>0.05). The complication rate in the hook group was significantly lower than that in the interceptor group, the difference was statistically significant(P<0.05).

CONCLUSION: Compared with the interceptor chopping techniques, the hook pre-chopping techniques can effectively reduce the US/TIME and CDE of phacoemulsification in the age-related cataract patients, it is beneficial to improve the best corrected visual acuity and the corneal edema degree as soon as possible, and it can effectively reduce the complications.