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Some visual, optometric and perceptual effects of coloured glasses

Wilkins, Arnold; Neary, Catherine


Arnold Wilkins


We examined 20 individuals who had worn coloured glasses (Irlen filters) for a period of at least 3 months and who claimed to find them beneficial. Sixteen had a history of reading difficulties. The performance of a variety of visual tasks was compared (1) using the coloured lenses; (2) using neutral density filters of similar photopic transmittance; and (3) using trial lenses to correct any residual refractive error. The coloured lenses appeared to reduce discomfort and susceptibility to a anomalous perceptual effects upon viewing grating patters. They also improved the speed of visual search by a small amount. The lenses had idiosyneratic effects on ocular muscle balance and acuity. They did not affect contrast sensitivity at a spatial frequency of 4 c/deg. Copyright © 1991, Wiley Blackwell. All rights reserved


Wilkins, A., & Neary, C. (1991). Some visual, optometric and perceptual effects of coloured glasses. Ophthalmic and Physiological Optics, 11(2), 163-171.

Journal Article Type Article
Acceptance Date Feb 2, 1990
Publication Date Jan 1, 1991
Journal Ophthalmic and Physiological Optics
Print ISSN 0275-5408
Electronic ISSN 1475-1313
Publisher Wiley
Peer Reviewed Peer Reviewed
Volume 11
Issue 2
Pages 163-171
Keywords coloured glasses
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