Testing Colour Vision

Inherited congenital colour vision defects are relatively common and symmetrical in both eyes, for example approximately 8% of males are red – green colour blind. Conversely acquired colour loss may only affect one eye or, if bilateral, would usually be asymmetrical eg. a reduced perception of red can occur early in diseases of the optic nerve eg. optic neuritis, and chiasm eg. pituitary tumour.

Please login or subscribe to view the rest of this page.