COMPARISON OF FUNCTIONAL MOBILITY PERFORMANCE WITH CLINICAL VISION MEASURES IN SIMULATED RETINITIS-PIGMENTOSA

被引：24

作者：

HAYMES, S

GUEST, D

HEYES, A

JOHNSTON, A

机构：

[1] Victorian College of Optometry, Melbourne

[2] Royal Guide Dogs Associations of Australia, Melbourne

[3] Department of Optometry, University of Melbourne, Melbourne

来源：

OPTOMETRY AND VISION SCIENCE | 1994年 / 71卷 / 07期

关键词：

RETINITIS-PIGMENTOSA; MOBILITY PERFORMANCE; CLINICAL VISION MEASURES; LOW VISION; RETINAL ILLUMINANCE;

D O I：

10.1097/00006324-199407000-00004

中图分类号：

R77 [眼科学];

学科分类号：

100212 ;

摘要：

Simulations of retinitis pigmentosa (RP) under various conditions of retinal illuminance were designed and investigated in order that they might be used in the mobility training of clients with early RP. Goggles incorporating a 2.5 neutral density (ND) filter with a 0.5-mm mm diameter pinhole were found to be a potentially useful simulation device for this purpose. This investigation also compared mobility performance with clinical vision measures under photopic, mesopic, and scotopic conditions of retinal illuminance. Although none of the clinical vision measures we used was entirely predictive of mobility performance, some measures were better predictors than others. For a severe constriction of the visual field and decreasing retinal illuminance, both edge contrast sensitivity and visual acuity, measured outdoors, accounted for a greater proportion of the variance in mobility performance than did low contrast visual acuity measured under the same circumstances. The same clinical vision measures, taken indoors, were of no value in predicting outdoor mobility performance.

引用

页码：442 / 453

页数：12

共 18 条

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