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Optical Engineering

Application Of Cathode-Ray Tube Technology To The Clinical Evaluation Of Visual Functions
Author(s): Francoise Vernier; Jacques Charlier; Duc Dung Nguyen
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Paper Abstract

Cathode-ray tubes (CRTs) have many applications in the clinical evaluation of visual functions. They have been used to test visual acuity, contrast sensitivity, visual fields, and early development of vision in preverbal children. Because CRTs provide considerable flexibility for the definition of spatial and temporal components of the stimulus, their use provides an attractive solution to many visual stimulation problems. However, there are some limitations due to the scanning of the picture frame by the electron beam and also to the electron-photon conversion process. The spatial, photometric, spectral, and temporal characteristics of a specifically designed monochromatic television system are evaluated with reference to the physiological requirements of visual tests.

Paper Details

Date Published: 1 February 1988
PDF: 6 pages
Opt. Eng. 27(2) 272123 doi: 10.1117/12.7976656
Published in: Optical Engineering Volume 27, Issue 2
Show Author Affiliations
Francoise Vernier, Essilor International (France)
Jacques Charlier, Institut National de la Sante et de la Recherche Medicale (INSERM) (France)
Duc Dung Nguyen, Institut National de la Sante et de la Recherche Medicale (INSERM) (France)

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