高度近视白内障术后矫正视力与眼轴长度相关性

The correlation between corrected visual acuity and axial length in high myopia cataract surgery

目的分析应用小切口非超声乳化手术治疗高度近视白内障患者的术后最佳矫正视力与患眼眼轴长度的相关。方法以本院眼科2011年1月-2015年1月期间收治经筛选后的116眼高度近视白内障为研究对象,按照眼轴长度分为2个对照组,统计各组术后最佳矫正视力,取其平均值作为对比。结果眼轴长度≥26mm、<29mm组50例(79眼),术后3个月平均最佳矫正视力0.58±0.07;眼轴长度≥29mm组32例(37眼),术后3个月平均最佳矫正视力0.15±0.06。比较两组术后3个月平均最佳矫正视力,通过统计处理,t=4.05,P<0.05,两组之间有非常显著差别。说明高度近视白内障眼白内障摘除术后最佳矫正视力随眼轴长度增长而相应下降。结论高度近视白内障眼术后最佳矫正视力与其眼轴长度成负相关性。

Objetive To analyze the correlation between best corrected visual acuity and axial length in high myopia cataract patients treated by small incision non-phacoemulsification surgery. Methods According to axial length, 116 cases of high myopia and cataract from January 2011 to January 2015 at the department of ophthalmology in our hospital are divided into 2 groups. The average value of best corrected visual acuity of each group is calculated for comparison. Results The average best corrected visual acuity of groups including 50 cases（79 eyes） with axial length≥26mm and 29mm at 3 months after surgery is 0.58±0.07; the average best corrected visual acuity of groups including 32 cases（37 eyes） with axial length≥29mm is 0.15±0.06. The statistical results（t=4.05,P〈0.05） indicate that there is a very notable difference between the two groups. The best corrected visual acuity after high myopia cataract extraction decreases with the increasing of the axial length. Conclusion The best corrected visual acuity after high myopia cataract surgery was negatively correlated with the axial length.