Cones and Color Vision
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You are here: Home » Ophthalmology Notes » Cones and Color Vision
Cones less sensitive than rods to light.
Cones provide color vision and greater visual acuity.
High light intensity bleaches out the rods, and color vision with high acuity produced by cones.
Trichromatic theory of color vision:
3 types of cones:
Blue, green and red.
According to the region of visual spectrum absorbed.
Each type of cone contains retinene associated with photopsins.
Photopsin protein is unique for each of the 3 cone pigments.
Each cone absorbs different wavelengths of light.
Category: Ophthalmology Notes
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