Work

Changes in differential threshold in patients with glaucoma during prolonged perimetry.

Year: 1983

Type: article

Abstract: Patients with chronic open-angle glaucoma and others suspected of having glaucoma were subjected to continuous contrast threshold measurement by automatic and manual perimetric techniques. The results show that an increase of contrast threshold over time is a frequent finding in glaucoma patients and that this increment can be large, especially at points close to existing field defects. it is reproducible and independent of background illumination and can be demonstrated with both automatic and manual testing, but it is larger in the automatic than in the manual mode of testing. The results may have some important implications for visual field testing in glaucoma.

Source: British Journal of Ophthalmology

DOI: 10.1136/bjo.67.8.512

Authors: A Heijl, S M Drance

Institutions: University of British Columbia, Lund University

Language: English

Topic: Glaucoma and retinal disorders

Subfield: Ophthalmology

Field: Medicine

Domain: Health Sciences

SDG: Good health and well-being

Open Access status: bronze

Funders: Baker Foundation, Medical Research Council Canada, Medical Research Council