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Although numerous papers have been written on the subject of legibility, there appears to be a lack of research into the relationship between printed matter and visual impairment in this context. The research aim of this thesis is to conduct a comprehensive study on the reading performance of those suffering from a particular impairment, namely Retinitis Pigmentosa and to identify typographic considerations that would improve this performance. The work confirms the importance of specially designed material and the need for specific guidelines to ensure optimum legibility for particular eye deficiencies.
Benedetti, C. Typographic Legibility for Retinitis Pigmentosa Readers.Thesis submitted for the award of M.Phil to Technological University Dublin, September 2001.