[Skip to Content]
Access to paid content on this site is currently suspended due to excessive activity being detected from your IP address 54.204.161.30. Please contact the publisher to request reinstatement.
[Skip to Content Landing]
Article
April 1950

FLICKER FUSION FIELDSIII. Findings in Early Glaucoma

Author Affiliations

ST. LOUIS
From the Department of Ophthalmology and the Oscar Johnson Institute of the Washington University School of Medicine.

Arch Ophthalmol. 1950;43(4):661-677. doi:10.1001/archopht.1950.00910010672005
Abstract

MANY attempts have been made in the past to alter the usual technic of taking visual fields in an effort to detect the earliest changes due to glaucoma. Some have reduced the illumination (Bair,1 1940; Marlow,2 1947; Mann and Sharpley,3 1947). Others (Derby, Waite and Kirk,4 1926; Derby, Chandler and O'Brien,5 1928) found that the light threshold and the dark adaptation rate are defective in early glaucoma. In all such tests perception involves visual acuity or form vision, and absolute light thresholds.

Since Phillips6 (1933) first reported on flicker fusion frequency fields, there has been increasing interest in this entirely different type of tests. Weekers7 (1947) has reported that flicker fusion frequency fields are depressed in cases of early glaucoma.

Unlike all other tests, determination of the flicker fusion frequency fields depends on two factors: (1) the length of the latent period between

First Page Preview View Large
First page PDF preview
First page PDF preview
×