The Student Room Group

Optometry-The dark adaptation curve

As rod sensitivity improves why does the stimulus become colourless?
Reply 1
Because rods are not responsible for color vision. It is not black and white but color perception is different and very limited. That is one of the reasons why myopes usually see much worse in the dark. Not enough rays reach the retina and the color difference is so vague everything seems even darker and any source of light seems much lighter.

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