A DALTONIC PAINTER

Mr. J.J., painter, has been a professional artist for thirty years. On clinical examination of the color vision by pseudo-isochromatic plate s, City University Colour Vision Test, standard and desaturated Panel- D 15, Farnsworth 100-hue test and Nagel's anomaloscop evidenced a typi cal hereditary deuteranopia. Neverless, the recognition and the denomi nation of coloured samples, presented singly or in simultaneous chroma tic contrast, evidenced only a few errors. In an interview, the subjec t explained his difficulties with colours, mainly with green, and the procedures used to avoid mistakes in painting:knowledge of the names o f colors written on tubes; precise order of arranging the tubes; use o f a palette restricted to some basic hues, avoiding green. The subject artistic technique is based on drawing, on better perceived colours ( i.e. the blues) and on value contrasts. He also enumerated his difficu lties with colours in casual situations:clothes, traffic, food. Some r eproductions of the works of the painter illustrate this study.