目的 调查成都市学龄前儿童散光和弱视状况,并分析学龄前儿童不同程度散光的弱视患病率.方法 对2185名4～6岁儿童在自然瞳孔下,用Canon RK-FI全自动电脑验光仪检查散光度数,调查儿童的散光发生率;将弱视眼根据散光程度分组,比较各组间的弱视患病率.结果 调查的儿童中,低度散光(≤1.0 D)发生率为29.73%,中度散光(1.00～2.00 D)发生率为4.69%,高度散光(＞2.00 D)发生率为2.97%.低度散光的儿童中,弱视患病率为1.23%;中度散光的儿童中,弱视患病率为4.39%;高度散光的儿童中,弱视率为14.29%.结论 儿童散光程度越严重,患弱视的几率越高.%Objective To investigate the astigmatism and amblyopia among the preschool children in Chengdu city, and to analyze the attack rate of amblyopia with different degrees of astigmatism in this population. Methods Canon RK - FI automatic computer optometry instrument was used to detect the degree of astigmatism in natural pupils of 2,185 children at the age of 4 - 6. The attack rate of astigmatism was investigated. Those with amblyopic eyes were divided into three groups according to different degrees. Comparison of attack rate was made among the three groups. Results Among these children, the incidence of low astigmatism( ≤1.0 D ),medium astigmatism( 1. 00 - 2.00 D )and high astigmatism( > 2. 00 D )was respectively 29. 73% ,4. 69% and 2. 97% . The attack rates of amblyopia in the children with low, medium and high astigmatism were respectively 1. 23% ,4. 39% and 14. 29% . Conclusion The more serious the degree of childrens astigmatism, the higher the attack rate of amblyopia.
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