Reduced contrast sensitivity in compressive lesions of the anterior visual pathway.

Abstract:

:A clinical procedure for determining contrast sensitivity was performed on patients with suspected sella area masses. The test consisted of a series of six plates, each containing a bar pattern of fixed sinusoidal spatial frequency in which contrast varies along the length of the bar. Patients with compressive lesions of the chiasm of optic nerve showed loss of contrast sensitivity over the whole range of spatial frequencies. The general loss in contrast was evident even in patients with 20/20 Snellen acuity. After surgery, contrast sensitivity improved, as did other measures of vision, but significant contrast deficits remained. Contrast sensitivity is a sensitive indicator for the diagnosis and evaluation of compressive lesions of the chiasm.

journal_name

Neurology

journal_title

Neurology

authors

Kupersmith MJ,Siegel IM,Carr RE

doi

10.1212/wnl.31.5.550

subject

Has Abstract

pub_date

1981-05-01 00:00:00

pages

550-4

issue

5

eissn

0028-3878

issn

1526-632X

journal_volume

31

pub_type

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