1. Circadian Medicine Circadian Medicine United Kingdom says:

    I have been following developments on dyslexia for some decades, so I am aware that there is already thinking on whether the distribution of retinal cones influences dyslexia.  This previous literature has not been referred to in this study.

    For example G S Grosser and CS Spafford wrote a number of academic articles on this issue in the 1980s and 1990s.  They found that their samples of dyslexics reported colors at more peripheral positions than other readers, and this data was consistent with the premise that dyslexics have an anomalous distribution of retinal receptors. I would be interested in whether 2017 considered the Grosser and Spafford proposition that dyslexics have an anomaly in the spatial distribution of their photoreceptors – with cones being found more peripherally in dyslexics than non-dyslexics.  

    In addition blue light sensitivity is found in other neurological conditions, and it would be interesting to know whether research on abnormal retinal distribution could be extended to other conditions (where eye gaze and movement is also abnormal).  

    Finally if there is a lack of ‘one eye’ dominance in dyslexia (as possibly other conditions) is there the possibility that this is influencing neural network connections?  

    Dyslexia can result in people making unusual associations and this goes beyond confusing letters to associating concepts - and can support creativity thinking.   I struggled to read as a child, but my dyslexia has also supported me in accessing top law, art and science universities.

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