青年近视患者客观视觉质量的对比研究

Comparative study of the objective optical quality in young adults with myopia

目的分析近视对健康青年人视觉质量的影响。方法随机选取近视和正视健康青年人共93例,按照屈光不正度数将其分为正视组、低度近视组、中度近视组、高度近视组。均选择右眼为研究对象,使用双通道视觉质量分析系统进行视觉质量测量。结果正视、低度近视和中度近视三组间的视觉质量差异均无统计学意义(P>0.05)。高度近视的视觉质量明显低于其他三组(P<0.05)。MTFcutoff、SR、OSI、OV100%、OV20%、OV9%与年龄之间均无相关性(P>0.05);MTFcutoff、SR、OV100%、OV20%、OV9%与SE之间呈正相关,OSI与SE之间呈负相关(P<0.01)。结论青年高度近视的视觉质量低于低、中度近视的视觉质量,近视患者的视觉质量随近视度数的增加而降低。

ABSTRACT：Objective To investigate the influence of myopia on optical quality in healthy young adults. Methods Nine-ty-three healthy young adults were mainly recruited and were divided into emmetropia group, low myopia group, moder-ate myopia group and high myopia group according to their spherical equivalent refraction （SE）. Only right eyes of the 93 cases were included for the analysis. The OQAS was used to measure optical quality in the study. Results No significant difference is found among emmetropia group, low myopia group and moderate myopia group in any of the optical quality parameters（P〉0.05）. Mean values of MTFcutoff, SR, OV100%, OV20%, OV9%in high myopia group are significantly lower than that in the emmetropia group, low or moderate myopia group （P〈0.05）. The mean value of OSI in the high myopia group is significantly higher than that in the emmetropia group, low or moderate myopia group （P〈0.05）. No significant dif-ference is found between each parameter of optical quality and age （P〉0.05）. There is a positive correlation between each pa-rameter of optical quality and SE （P〉0.05）, and a negative correlation between OSI and SE （P〈0.01）. Conclusion The optical quality of high myopia young adults is worse than the optical quality of low or moderate myopia young adults. The optical quality of young adults with myopia decreased with the rise of SE.