Review: Normal and Defective Colour Vision

The Recognition of Flashing Coloured Lights by Persons with Normal and Defective Colour Vision.

sudden onset, oed&ma of retinal tissues, equally sudden cessation on removal of the cause and complete restoration of vision. (2) Whenever chronic nephritis complicates pregnancy, the visual disturbances are due to renal retinitis. (3) This retinitis is associated with high blood-pressure which, together with the signs of retinitis, have a tendency to persist after delivery. (4) This form of re...

Colour-Vision and Colour-Blindness

The genetics of normal and defective color vision

The contributions of genetics research to the science of normal and defective color vision over the previous few decades are reviewed emphasizing the developments in the 25years since the last anniversary issue of Vision Research. Understanding of the biology underlying color vision has been vaulted forward through the application of the tools of molecular genetics. For all their complexity, th...

Expert Review Examination of Colour Vision

Congenital colour vision anomalies are common, with red/green anomaly affecting 8-10% of males. Acquired loss of colour perception can be a sensitive indicator of macular and optic nerve disease. It is vital to understand how colour vision tests can be used effectively to diagnose the type of colour anomaly. This article reviews the different tests available and the protocols for their appropri...

L-cone pigment genes expressed in normal colour vision

To directly test the hypothesis that only two pigment genes are expressed from the X-chromosome array, we examined expressed M and L pigment gene sequences from > 100 male eye donors. In this sample, there were eight men who expressed high levels of more than one L pigment gene in addition to M pigment genes. The fact that these eyes expressed both L and M pigment genes at significant levels su...