近视眼不同矫正方式的双眼视功能研究

Study of binocular function between spectacle and soft contact lens correction on myope

关键词:  近视  框架眼镜  角膜接触镜  双眼视功能

Key words:  myope  spectacle  soft contact lens  binocular function

摘要:

[目的] 探讨近视眼戴框架眼镜和角膜接触镜矫正的双眼视功能及其区别。 [方法] 选取近视眼63例，按习惯矫正方式分为框架眼镜矫正和角膜接触镜矫正两组，Von Graefe法测量每位近视的远、近距离水平隐斜，梯度性AC/A比率，远、近距离正、负融像性聚散，比较两组各参数差异。 [结果] 戴框架眼镜和角膜接触镜两组的近距离水平隐斜分别为（-7.33±3.67）△、（-4.12±3.35）△，AC/A比率分别为（2.69±1.78）△/D、(4.34±1.68)△/D，两组差异均有显著性意义（P<0.05）,戴角膜接触镜近距离水平隐斜、AC/A比率更接近正常水平。戴角膜接触镜近距离负融像性聚散（21.32±5.12）△较戴框架眼镜组（17.14±6.03）△增大，两组差异有显著性意义（P<0.05）；远距离水平隐斜，远距离正、负融像性聚散、近距离正融像性聚散两组比较差异无显著性意义（P>0.05）。 [结论] 近视戴角膜接触镜矫正，近距离水平隐斜、AC/A比率较戴框架眼镜更接近正常值。

Abstract:

[Objective] To study the binocular function of myope with spectacle and soft contact lens and the difference between them. [Methods] Sixty-three myopes were selected in the study and divided into two groups according to the conventional correction way. Distance and near horizontal phoria, AC/A ratio, distance and near fusional vergence were measured in all subjects. [Results] Near horizontal phoria and near negative fusional vergence were （-7.33±3.67）△，（17.14±6.03）△ wearing spectacle. Those were（-4.12±3.35）△，（21.32±5.12）△ with soft contact lens , respectively. AC/A ratio were （2.69±1.78）△/D，(4.34±1.68) △/D in the two groups. Statistically significant differences were found with soft contact lens correction in comparison to spectacle in near horizontal phoria, AC/A ratio and near negative fusional vergence(P<0.05). There was no difference in distance horizontal phoria, distance and near positive fusional vergence and distance negative fusional vergence（P>0.05). [Conclusion] Soft contact lens correction in myope reduces near exophoria, increases AC/A ratio and makes them close to normal values compared with spectacle correction.