Food and Behaviour Research

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Scotopic sensitivity in dyslexia and requirements for DHA supplementation

Greatrex, J.C., Drasdo, N., Dresser, K. (2000) Lancet. 355(9213) 1429-30. 

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Much interest is shown in reduced scotopic sensitivity in dyslexia and the possible role of docosahexaenoic-acid deficiency as a causative factor. However, we found that significant decreases in scotopic sensitivity are not a general characteristic of dyslexia, which may cast doubt on the value of DHA supplementation.