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Chapter 1 Light and colour |
Nature of light. Different light sources and their effect on appearance. Colour mixing and colour wheels. How colour is classified (Munsell system). The names of colours. |
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Chapter 2 Colour vision |
The eye, rods and cones on the retina and their photopigments. Day and night vision. The three types of cone pigment. Rival theories of colour perception. How animals see colour. The evolution of colour vision. |
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Chapter 3 Colour vision deficiencies |
John Dalton and the study of colour blindness. The different types of colour vision deficiency. The occurence of colour vision deficiency in the UK and across the world. Colour confusions explained on the chromaticity diagram. Severe and mild deficiencies, (dichromacy and anomalous trichromacy). Genes and inheritance. Colour deficiency acquired through illness or injury. |
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Chapter 4 Diagnosis |
Types of colour vision test. Ishihara plates and other pseudoisochromatic tests. Arrangement tests. The anomaloscope. Lanterns used for testing pilots and train drivers. Genetic testing. What happens during a full colour vision test. Sample test report. |
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Chapter 5 The appearance of colours |
Normal colour vision. How the vision of a colour defective may be simulated. Colour selection for the World Wide Web. A selection of images as seen by different types of colour defective. |
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Chapter 6 Everyday life |
The difficulties that colour defectives encounter in life. Problems in choosing and preparing food. Colour-blind artists. Choosing clothes and decorations. The problems that children encounter at school and at home. |
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Chapter 7 Careers |
Accidents attributed to colour blindness. Careers requiring good colour vision. Problems in medicine. Horticulture and agriculture. Transport: driving and aviation. The rules for colour defective pilots. Electronics industry. |
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Chapter 8 Techniques that may help |
Quack remedies. The effect of coloured filters on colour perception. Recommended filters to improve colour discrimination. Contact lenses worn over one eye - do they work? |
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Copyright © 2002, Donald McIntyre Revised: 22 May 2002 URL: http://www.daltonism.org.uk email: Donald.McIntyre.1958@pem.cam.ac.uk |