DISTANCE VISUAL-ACUITY AND MONOVISION

被引：30

作者：

COLLINS, M

GOODE, A

BROWN, B

机构：

[1] Centre for Eye Research, School of Optometry, Queensland University of Technology, Brisbane

[2] Department of Optometry and Radiography, Hong Kong Polytechnic

来源：

OPTOMETRY AND VISION SCIENCE | 1993年 / 70卷 / 09期

关键词：

CONTACT LENS; VISUAL ACUITY; MONOVISION; SUPPRESSION; ASTIGMATISM;

D O I：

10.1097/00006324-199309000-00007

中图分类号：

R77 [眼科学];

学科分类号：

100212 ;

摘要：

We have investigated aspects of visual acuity with monovision correction. Binocular distance visual acuity with monovision was approximately equal to monocular visual acuity for addition powers (monocular defocus) of +1.00 to +2.50 D, using both high and low contrast logMAR visual acuity charts. Neither the eye chosen to be defocused (dominant or nondominant) or pupil size (3.5, 5 and 7 mm) affected the binocular visual acuity loss with monovision for high contrast charts. We also investigated the effect of induced residual astigmatism (+0.50, +1.00, and -1.00 D) on binocular distance visual acuity in monovision correction. Residual astigmatism caused a significantly greater reduction of binocular visual acuity in the monovision condition than it did in normal binocular conditions. This effect appears to be related to a process of meridional interocular suppression. It may therefore be of clinical importance to correct low amounts of residual astigmatism in monovision corrections to provide optimum binocular visual acuity.

引用

页码：723 / 728

页数：6

共 15 条

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