川北医学院学报2017，Vol.32Issue(1)：33-37,5.DOI:10.3969/j.issn.1005-3697.2017.01.010
184名8～12岁儿童不同阅读距离及阅读时间调节滞后和调节反应的观察
Observation of accommodative response and accommodative lag under different reading distance and reading time in 184 Children aged 8-12 years
摘要
Abstract
Objective:To compare and analyze the effects of children with different refractive status and different reading distance and reading time adjustment quantity and adjust lag difference,to clarify the regulation of children reaction state,and by adjusting the reaction angle that the reading distance and the occurrence and development of myopia relationship to provide reference.Methods:184 children between 8 and 12 years old were selected randomly.The accommodative responses and accommodative lag in the reading distance of 20 cm and 33 cm were measured using binocular open visual field infrared automatic optometry (WAM-5500).Results:For 33cm reading distance under reading time of 1 and 10 min,accommodative reactions were 2.03 ± 0.41 D(1 min) and 2.31 ± 0.51 D (10 min) and accommodative lags were 1.00 ±0.41 D (1 min) and 1.21 ±0.14 D (10 min) in emmetropia,as well as 1.90 ±0.43 D(1 min),2.25 ±0.42 (10 min) of accommodative reactions and 1.01 ±0.43 D (lmin),1.09 ±0.11 D (10 min) of accommodative lags for low myopia,1.75 ± 0.43 D (1 min),2.01 ± 0.34 D (10 min) of accommodative reactions and 1.03 ± 0.37 D (1 min),1.05 ± 0.09 D (10 min) of accommodative lags for moderate myopia with corrected distance visual acuity,respectively.For 20cm reading distance,accommodative reactions were 3.72 ± 0.63 D (1 min) and 3.93 ± 0.43 D (10 min) and accommodative lags were 1.27 ±0.64 D (1 min) and 1.42 ± 0.26 D (10 min) in emmetropia;as well as 3.62 ± 0.49 D (1 min),3.91 ± 0.23 (10 min) of accommodative reactions and 1.18 ±0.50 D (1 min),1.37 ±0.10 D (10 min) of accommodative lags for low myopia,3.32 ±0.60 D (1 min),3.71 ±0.21 D (10 min) of accommodative reactions and 1.26 ±0.63 (1 min),1.35 ±0.15 D (10 min) of accommodative lags for moderate myopia with corrected distance visual acuity,respectively.The accommodative demand,responses and lag in 20 cm reading distance were significant higher than that in 33 cm reading distance (P ＜ 0.05),However,accommodative demand,responses and lag in 10 min were all higher than those in 1 min,thedifference was not significant.Conclusion:Reading distance and reading time are related factors that regulate the amount of accommodative reaction and accommodative lag,which may be associated with the development of juvenile myopia.To control the reading distance is the key method for the children's myopia prevention.关键词
屈光不正/调节需求/调节反应/调节滞后/离焦Key words
Ametropia/Accommodative demand/Accommodative response/Accommodative lag/Defocus分类
医药卫生引用本文复制引用
黄馨慧,王明进,何鲜桂,吕敏之,张宏伟..184名8～12岁儿童不同阅读距离及阅读时间调节滞后和调节反应的观察[J].川北医学院学报,2017,32(1):33-37,5.基金项目
国家自然科学青年基金项目(81402695) （81402695）
