人眼对比敏感度的相关影响因素及评价分析

Analysis of influential factors to the contrast sensitivity on human eyes

目的探讨人眼对比敏感度与性别、眼别、主导眼、年龄及屈光度的关系。方法在最佳矫正视力下,检测75例(150眼)近视患者的对比敏感度值,并将所得数据进行统计学分析。结果①不同性别的对比敏感度之间差异没有统计学意义(P﹥0.05)。②不同眼别的对比敏感度之间差异没有统计学意义(P﹥0.05)。③主导眼的对比敏感度优于非主导眼,但两者差异没有统计学意义(P﹥0.05)。④随着年龄增长,人眼对比敏感度不断下降,青年组和老年组的对比敏感度数值组间差异有统计学意义(P﹤0.05),而青年组和中年组、中年组和老年组的数值组间差异没有统计学意义(P﹥0.05),年龄与对比敏感度值有相关性。⑤随着屈光度增长,人眼对比敏感度不断下降,除了低度组与高度组、中度组与高度组的wg的数值组间差异有统计学意义外(P﹤0.05),其余各组的数值组间差异均没有统计学意义(P﹥0.05),屈光度与部分对比敏感度值有相关性(wog:r=0.224,P=0.006;wg:r=-0.229,P=0.005;redtest:r=-0.093,P=0.256;readaption:r=-0.064,P=0.433)。结论人眼对比敏感度及视功能随年龄增长及屈光度的增加而逐渐下降,主导眼与非主导眼相比,其对比敏感度稍好。

Objective To explore changes in contrast sensitivity as a function of gender, dominant eye, age and refractive error in human eyes. Methods The contrast sensitivity of 75 people （150 eyes） was examined under the best corrected visual acuity and analyzed statistically. Results （1） There was no significant difference in CSF between males and females（P〉 0.05）. （2） There was no significant difference in CSF between the right and left eyes （P〉 0.05）. （3） The CSF of the dominant eye was better than that of the nondominant eye but the difference between them was not significant （P 〉 0.05）. （4） CSF and visual function decreased with aging and there was a significant difference between the young group and the senior group （P〈 0.05）, but there were no significant differences between the young and adult groups or the adult and senior groups （P 〉 0.05）. （5） CSF and visual function decreased with an increase in ametropia. There were no significant differences among all groups on CSF （P〉 0.05）except the difference on WG of low myopia and high myopia, moderate myopia and high myopia. Meanwhile, the terms were significantly correlated between ametropia and part of the CSF （wog： r=0.224, P=0.006;wg： r=-0.229, P=0.005;red test： r=-0.093, P= 0.256; readaption： r=-0.064, P=0.433）. Conclusion The CSF decreased with aging and an increase in ametropia and the CSF of the dominant eye was slightly better than that of the non-dominant eye.