retinal densitometry

densitometry, retinal

A technique used to study visual pigments in vivo. It consists of measuring the small fraction of light that is reflected by the pigment epithelium of the retina before and after bleaching with a bright source of light. See visual pigment.
Millodot: Dictionary of Optometry and Visual Science, 7th edition. © 2009 Butterworth-Heinemann
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