Binocular Vision

An updated search of the Medline database through July 14, 2005 mentioned two studies focused on the use of tinted lenses and eye patching as a technique to steady binocular vision as a therapy for dyslexia.  These studies reported conflicting results. Stein and colleagues reported results of a randomized trial in which 143 dyslexic children were instructed to wear yellow tinted glasses with or without the left lens occluded.  The children were instructed to wear the glasses whenever they were reading or writing. Significantly more of the children who were given occlusion, gained stable binocular vision in the first 3 months compared with children given the unoccluded glasses. Christenson and colleagues, however, found no difference in reading ability in children with dyslexia and abnormal binocular vision who were tested both with and without occluded, blue-tinted lenses.

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