儿童散光年龄分布及其与子午线弱视的关系  

Astigmatism distribution characters of age and relationship with meridian amblyopia in children

作　　者：邓敏[1] 许江涛[1] 马艳玲[1] 孙青[1] 郝玉星[1] 

机构地区：[1]昆明市儿童医院眼科,云南昆明650034

出　　处：《中国儿童保健杂志》2013年第8期880-882,共3页Chinese Journal of Child Health Care

摘　　要：【目的】研究4～8岁儿童≥1.00DC散光与子午线弱视形成的关系。【方法】收集在本院眼科门诊行睫状肌麻痹检影验光,散光度绝对值≥1.00DC的儿童顺规散光共1 005例(1 910眼)进行相关统计分析。【结果】1)4～6岁各类型散光共1 636眼(85.7%)。7～8岁散光274眼(14.3%)。2)1 910眼散光类型以复性远视散光(53.2%)和混合性散光(29.4%)为主,不同类型散光分布差异有统计学意义(χ2=134.52,P<0.05)。3)≥1.00DC散光所致弱视1 769眼(占92.4%),轻度弱视眼占69.3%,中度弱视眼占23.1%,重度弱视仅3眼。4)不同矫正视力与散光度关系差异有统计学意义(χ2=362.732,P<0.05)。【结论】≥1.00DC散光眼极易发生弱视,该散光所致弱视以轻、中度为主;其散光类型分布以复性远视散光为主,其次为混合散光;随散光度增高,矫正视力有下降的趋势;儿童散光筛查和光学矫正的重点应放在学龄前期。[Objective] To investigate the relationship of ≥1.00DC astigmatism and meridian amblyopia in 4~8 years old children. [Method] A total of 1 005 out-patients （1 910 eyes） were analyzed which regular astigmatism degree ≥1.00DC by retinoscopy under cycloplegia. [Results] There were 1 636 eyes（85.7%） of different astigmatism in 4-6 years old children, and 274 eyes（ 14.3 % ） in 7 - 8 years old children. Compound hyperopic astigmatism（53.2 % ） was the most astigmatism type, and then mixed astigmatism （29.4 %）. There was significant difference in astigmatism constituent ratio（x2=134.52, P〈0.05）in different ages. There were 1 796 eyes（92.4% ） with amblyopia cause by asitgmatism, mild amoblypia shared of big part （69. 3%）,and moderate amblypia was in the minority （23. 1%）. Only 3 eyes were severe amblyopia. There was significant difference in astigmatism degree and best corrected visual acuity（x2 =362. 732,P〈0.05）. [Conclu- sions] Mild and moderate amblyopia are easy to occur and become the main components in children while astigmatism de- gree≥1.00DC. There are different distributions of astigmatism type in children. The main type is compound hyperopic a- stigmatism and then is mixed astigmatism. With the increasing astigmatism degree, best corrected visual acuity has been fall- ing. The most important period of astigmatism screening and optical correction is pre-school.

关 键 词：散光 子午线弱视 儿童 

分 类 号：R779.7[医药卫生—眼科]