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目的了解兰州市区小学及中学生的弱视发病情况,分析弱视的发病原因及分布情况。方法选择兰州市区5所小学及5所中学的初中生共计12361名进行视力普查,对矫正视力达不到0.9者进行验光矫正,对异常视力者进行视力损害原因分析,确定弱视发病者并分析发病原因。结果兰州市区12361名小学及中学生弱视发病人数为445人(512眼),发病率为3.6%,引起弱视的主要发病原因为屈光不正227例,占51.01%;斜视89例,占20.00%;屈光参差64例,占14.39%;形觉剥夺34例,占7.64%;其它31例,占6.96%。结论兰州市区的弱视发病率较全国平水平偏高,屈光不正及斜视是弱视的主要原因。
Objective To understand the incidence of amblyopia in primary and secondary school students in Lanzhou city and analyze the causes and distribution of amblyopia. Methods A total of 12361 junior high school students from 5 primary schools and 5 middle schools in Lanzhou City were selected for vision screening, corrected for uncorrected visual acuity of 0.9, corrected for visual impairment, and analyzed for amblyopia onset Causes. Results The incidence of amblyopia in 12361 primary and secondary school students in Lanzhou was 445 (512 eyes), with a prevalence of 3.6%. The main causes of amblyopia were ametropia with 227 eyes (51.01%), strabismus (89 eyes), accounting for 20.00% ; 64 cases of anisometropia, accounting for 14.39%; 34 cases of shape deprivation, accounting for 7.64%; the other 31 cases, accounting for 6.96%. Conclusion The prevalence of amblyopia in Lanzhou is higher than that of the national average. Ametropia and strabismus are the main causes of amblyopia.