Grapheme-colour synaesthesia and the orthoptist

Abstract

Aim: To give an overview of the condition known as grapheme-colour synaesthesia, and examine whether there is a need for orthoptists to be aware of its existence and potential impact when it coexists with other conditions, such as specific learning difficulty and Meares-Irlen syndrome.Methods: A literature-based review was performed. Relevant material was identified using the University of Liverpool library catalogue, Google, PubMed and Web of Knowledge. The focus was on relevant research published within the last 15 years.Results: Evaluation of the literature shows that grapheme-colour synaesthesia is thought to arise from increased structural connectivity between brain areas involved in th..