EFFECT OF LIGHT FILTERS ON CONTRAST SENSITIVITY FUNCTION IN NORMAL AND RETINAL DEGENERATION SUBJECTS

被引：21

作者：

LEGUIRE, LE

SUH, S

机构：

[1] Department of Ophthalmology, Children's Hospital, Columbus, Ohio, 43205

[2] College of Medicine, Ohio State University

来源：

OPHTHALMIC AND PHYSIOLOGICAL OPTICS | 1993年 / 13卷 / 02期

关键词：

D O I：

10.1111/j.1475-1313.1993.tb00440.x

中图分类号：

R77 [眼科学];

学科分类号：

100212 ;

摘要：

Contrast sensitivity functions were measured with five light filters and without a filter, in the presence of a glare source, in 12 retinal degeneration subjects and 9 normal subjects. The light filters included yellow-tinted, CPF 527, NoIR 111, 0.6 neutral density and sunglasses with a 95% UV filter. Retinal degeneration subjects showed a mild improvement in contrast sensitivity at the higher spatial frequencies and maintained mean log contrast sensitivity with light filters which reduced photopic light transmission up to 75%. Normal subjects exhibited a systematic decrease of contrast sensitivity at higher spatial frequencies with all light filters and overall mean log contrast sensitivity was significantly correlated (r = 0.86, P < 0.025) with photopic light transmission of the filters. It is concluded that, when in the presence of a glare source, the benefits of certain light filters to retinal degeneration subjects is related to the reduction of overall photopic luminance.

引用

页码：124 / 128

页数：5

共 12 条

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