双生子屈光状态的研究  

A twin study on refractive state in children

作　　者：王志强[1] 王冬妹[1] 欧阳镇[1] 唐锡麟[1] 

机构地区：[1]哈尔滨医科大学公共卫生学院,哈尔滨15001

出　　处：《中国学校卫生》1992年第4期206-208,共3页Chinese Journal of School Health

摘　　要：本文测量分析了103对7～12岁同性别双生儿童的屈光状态。结果表明:单卵双生屈光状态(球镜度数及柱镜度数)的偶内相似程度高于双卵双生;柱镜度数的遗传度高达0.77,而球镜度数的遗传度仅为0.43;提示儿童散光多受遗传因素控制,而小于6.00D的近视或远视则多受环境因素的影响。Diopters of sphere and cylinder were measured in 103 pairs of twins of the same sex (71 monozygotic and 32 dizygotic) aged 7—12 years. The monozygotic twins showed a higher within-pair similarity than dizygotic twins for both sphere and cylinder. Heritability estimate of cylinder(0. 77) was higher than that of sphere (0. 43). These results suggest that genetic factors play a major part in the determination of astigmatism,but environmental influences are more important for spherical ametropia.

关 键 词：屈光度 遗传度 散光 双生子 儿童 

分 类 号：R778.130.2[医药卫生—眼科]