评估改良型超声乳化手术治疗高度近视合并白内障的疗效。

选择2019年3月至2020年4月在哈尔滨爱尔眼科医院就诊的高度近视合并白内障患者66例，其中33例患者采取常规超声乳化手术治疗（对照组），33例患者采用改良超声乳化手术治疗（观察组），对比分析两组患者术后6个月时视力恢复情况、术前与术后1个月和3个月的角膜内皮细胞计数情况，以及术后并发症的发生情况。计数资料的比较采用χ²检验，计量资料的比较采用t检验和重复测量方差分析。

术后6个月，观察组视力恢复至0.5及以上患者的比例明显高于对照组（93.94% vs. 72.73%；χ²=5.346，P<0.05）。术后，两组患者角膜内皮细胞计数的差异有统计学意义（F=11.460，P<0.05），而且观察组术后1、3个月的角膜内皮细胞计数均显著低于对照组（P<0.01）。术后，观察组并发症发生率显著低于对照组（6.06% vs. 33.3%；χ²=7.759，P<0.01）。

改良型超声乳化手术治疗高度近视合并白内障能够有效改善患者视力，保护角膜内皮细胞，减少手术并发症，值得临床推广。

To evaluate the effect of modified phacoemulsification for high myopia complicated with cataract.

A total of 66 patients with high myopia complicated with cataract who visited the Harbin Aier Eye Hospital from March 2019 to April 2020 were selected and divided into control group and observation group by random number table method, with 33 cases in each group. The control group received conventional phacoemulsification, while the observation group received modified phacoemulsification. The visual acuity recovery, corneal endothelial cell count before and after surgery, and postoperative complications of the two groups were compared. χ² test was used for comparison of counting data, t test and repeated measurement analysis of variance were used for comparison of measurement data.

After 6 months, the proportion of patients in the observation group and the control group whose visual acuity recovered to 0.5 or above was 93.94% and 72.73%, respectively. The observation group was significantly better than the control group (χ²=5.346, P < 0.05). After surgery, there was a statistically significant difference in the corneal endothelial cell count between the two groups of patients (F=11.460, P < 0.05), and the corneal endothelial cell count in the observation group was significantly lower than that in the control group at 1 and 3 months after surgery (P < 0.01). After surgery, The incidence of postoperative complications in the observation group was significantly lower than that in the control group (6.06% vs. 33.3%; χ²=7.759, P < 0.01).

Modified phacoemulsification can effectively improve the visual acuity of patients with high myopia and cataract, protect corneal endothelial cells, reduce postoperative complications, which is worth promoting in clinic.