人眼视功能的追踪研究  

Tracking research on visual function of normal human

作　　者：钟浩[1] 吴文灿[1] 姜国华[1] 田志强[1] 

机构地区：[1]北京航天医学工程研究所,100094

出　　处：《眼科新进展》1999年第1期21-23,共3页Recent Advances in Ophthalmology

摘　　要：目的　研究年龄老化因素对视功能的影响，揭示视功能的纵向变化规律。方法　运用视觉功能检侧仪追踪１３０ 名被试者５ａ前后的视功能。结果　５ａ后，各组对比视力差异有显著性（Ｐ＜ ０．０５）；２个高年龄组的昏暗视力在５ａ 前后变化非常明显（Ｐ＜ ０．０１）；各年龄组的眩目恢复时间均随年龄的老化而显著延长（Ｐ＜ ０．０１ 或Ｐ＜ ０．０５）；随着年龄的增长，人眼的屈光度有由近视向远视变化的趋势。结论　纵向研究表明，４５ａ 左右是人眼视功能指标变化速率增大的转折点。Objective To study the effects of old age factor on vision function and find out the longitudinal regulation of vision function. Methods One hundred and thirty subjects with normal eyes who had been examined 5 years before were tested in the visual experiment. Results Contrast vision showed significant differences among the subjects in the four groups(P<0.05);Night vision changed obviously in the two older groups(P< 0.01 );The recovery course from dazzling prolonged correspondingly with the increase in age.(P<0.05 or P<0.05);With age increasing,the diopter of these subjects had a tendency of hypermetropia from myopia. Conclusion The results indicate that it is at about 45 years old that the change of the velocity of visual function get larger.

关 键 词：视觉功能 纵向研究 年龄老化 

分 类 号：R770.42[医药卫生—眼科]