An automated statis perimeter/adaptometer using light emitting diodes. Issue 7 (July 1983)

• Record Type: Journal Article
• Authors: Ernst, W.; Faulkner, D. J.; Hogg, C. R.; Powell, D. J.; Arden, G. B.; Vaegan,
• Is Part Of: British journal of ophthalmology. Volume 67:Issue 7(1983)
• Page Start: 431
• Page End: 442
• Publication Date: 1983-07
• Subjects: Ophthalmology -- Periodicals; 617.7
• DOI: 10.1136/bjo.67.7.431
• Languages: English
• ISSNs: 0007-1161

Abstract

Abstract : An automated static perimeter/adaptometer is described which measures thresholds with lights of 2 wavelengths. The instrument uses light-emitting diodes to produce the stimuli and is controlled by a small computer, making it very suitable for clinical testing of large numbers of patients. The use of 2 LEDs with different peak emission wavelengths (530 and 660 nm) permits an assessment of the relative state of rod and cone mechanisms in a particular region of the retina either during dark adaptation or when the eye is fully dark adapted.