Visual system: Different shades of colour blindness

Colour-Vision and Colour-Blindness

Hemianopic colour blindness.

A man developed cortical blindness after cerebral infarction in the distribution of both posterior cerebral arteries. When he recovered from this condition, he was found to be colour blind in the left visual field, but not in the right. This unusual situation resulted in apparently contradictory performances on hemifield and free-field tasks of colour discrimination, naming, and recognition. Th...

Colour Perception, and Colour-Blindness Tests

Colour Blindness and Young's Hypothesis.

disease of the posterior ciliary arteries, and the two cases that I have quoted might well have been caused by this. In now bringing my lecture to an end I do not wish you to think that I have exhausted the whole subject of the relation of arteriosclerosis to the eye. There is the question of optic atrophy and retrobulbar neuritis caused by pressure of the thickened wall of the carotid artery, ...

Colour-blindness among the Chinese.