Abstract
Abstract The paper by Cotton and Evans presents a useful review of research on the Irlen lens procedure. However, as the “franchised Irlen lens practitioner” referred to in the paper, I am concerned that its value as an investigation of the effects of lenses is limited by a number of factors. Unfortunately, analysis of the results is restricted by the fact that it has not been possible to access the raw data. However based on the data contained in the paper and in the thesis (Evans, 1988) from which the research component of it emanates, the following observations can be made.
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