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Question

Colour vision in human eyes is the function of photoreceptor cells named

This question was previously asked in
NDA I 2017 GAT Previous Year Paper (23-Apr-2017)
The correct answer is

Cones

The correct answer is Cones.

Cones are retinal photoreceptors that work in bright light and provide colour vision and sharp (photopic) vision; three types respond to red, green and blue light.

Rods work in dim light and give black-and-white (scotopic) vision. The blind spot (optic disc) has no photoreceptors at all, and the fovea is a small pit packed with cones — a region of the retina, not a type of cell.

Short trick: Cones = Colour; Rods = dim light (night vision).

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