夜视障碍评估。

Evaluation of night vision disturbances.

作者信息

Florakis G J, Jewelewicz D A, Michelsen H E, Trokel S L

机构信息

Department of Ophthalmology, Columbia Presbyterian Medical Center, New York, NY 10032.

出版信息

J Refract Corneal Surg. 1994 May-Jun;10(3):333-8.

PMID:7522090

Abstract

BACKGROUND

Evaluation of night vision disturbances has relied on subjective responses. We designed a test to more objectively measure night vision disturbances.

METHODS

The test consisted of projecting a small circle onto a visual acuity screen. The patient is asked to draw exactly what he sees on an Amsler grid. We evaluated 118 eyes in photopic and scotopic conditions and under different conditions of refractive correction.

RESULTS

Image degradation increased in scotopic conditions for myopes (p = .0001), hyperopes (p = .005), and emmetropes (p = .01). Myopic refractive error correlated with size of glare response (p = .001). Astigmatism correlated with decentration of glare response (p = .0001). Decentration increased in scotopic compared to photopic conditions (p = .002).

CONCLUSION

Our test offers a simple, convenient way to evaluate night vision disturbances and may offer a means of assessing night vision disturbances in patients considering refractive surgery.

摘要

背景

夜间视力障碍的评估一直依赖主观反应。我们设计了一项测试，以更客观地测量夜间视力障碍。

方法

该测试包括在视力表屏幕上投射一个小圆圈。要求患者在阿姆斯勒方格上精确画出他所看到的东西。我们在明视觉和暗视觉条件下以及不同屈光矫正条件下评估了118只眼睛。

结果

在暗视觉条件下，近视患者（p = 0.0001）、远视患者（p = 0.005）和正视患者（p = 0.01）的图像退化情况均有所增加。近视屈光不正与眩光反应大小相关（p = 0.001）。散光与眩光反应的偏心度相关（p = 0.0001）。与明视觉条件相比，暗视觉条件下偏心度增加（p = 0.002）。