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Information for Optometrists

Irlen Syndrome Research Summaries Synopsis: Summary of Irlen research and comparison of studies. Source: Australasian Association of Irlen Consultants. Authors: Robinson, G.L., and Whiting, P.R. Extensive Review 2004 Update 2008 The effects of Irlen Coloured Filters on Eye Movement: A long-term placebo controlled and masked study Synopsis: Found improvements in a range of visual tasks in 113 subjects with reading diffilculties using Irlen Filters. There were also linear effects for age. Source: Behavioural Optometry 1,7,4, 5-18 Authors: Robinson & Foreman Coloured Overlays in Schools: Orthoptic and Optometric findings Synopsis: The benefit children received from a coloured overlay was not related to orthoptic of optometric findings. Concludes that children with visually precipitated symptoms and/or reading difficulties need both evaluation of their accomodative and binocular status and investigation of the effect of coloured filters. Source: Ophthalmological and Physiological Optometry 22, 156-165 (2002). The College of Optometrists. Published by Elsevier Science Ltd. UK. Authors: Scott, McWhinnie, Taylor, Stevenson, Irons, Lewis, Evans, Evans & Wilkins Coloured Overlays and their effects on reading speed: A Review Synopsis: Coloured overlays can reduce symptoms of visual stress and increase reading speed, and are not placebo. Source: Ophthalmological and Physiological Optometry 22, 448-454 (2002). The College of Optometrists. Published by Elsevier Science Ltd. UK. Author: Wilkins, A. The effect of Coloured Filters on the rate of reading in an Adult Student population Synopsis: Irlen Syndrome likely to be as common in adults as in children, and improvements using Irlen filters similar. Source: Ophthalmological and Physiological Optometry 22, 535-545 (2002). The College of Optometrists. Published by Elsevier Science Ltd. UK. Authors: Evans & Joseph Eye Movement efficiency in normal and reading disabled elementary school children: effects of varying luminance and wavelength Synopsis: Blue filters resulted in a significant improvement in the number of fixations and regressions and rate of reading in reading disabled children. Source: Journal of the American Optometric Association. Authors: Solan, Ficara, Brannan & Rucker Both Coloured Overlays and Coloured Lenses can improve reading fluency, but their optimal chromaticities differ Synopsis: For improvement in reading rate, overlay colours provide no clinically reliable guide to optimal lens colour. Source: Ophthalmological and Physiological Optometry 19,4, 279-285 (1999). The College of Optometrists. Published by Elsevier Science Ltd. UK. Authors: Lightstone, A., Lightstone T., & Wilkins, A.