Home › Authors › International Research Group on Colour Vision Deficiencies. Symposium 👤 International Research Group on Colour Vision Deficiencies. Symposium 8 books Books by International Research Group on Colour Vision Deficiencies. Symposium Colour vision deficiencies XI 1993 Colour vision deficiencies IX 1989 Colour vision deficiencies VIII 1987 Colour vision deficiencies VII 1984 Colour vision deficiencies VI 1982 Colour vision deficiencies IV 1978 Colour vision deficiencies II 1974 Acquired colour vision deficie Acquired colour vision deficiencies 1972