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@alex.j_1about 2 months ago
How does the anatomy of the retina enable night vision?
I know some people can see better in the dark than others, and I’ve heard this has to do with the retina. What anatomical features of the retina allow for night vision, and how do rods and cones play into this? Are there any conditions that specifically affect night vision?
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Replies (3)
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H
@holly_02
Night vision relies on rod cells in the retina, which are super sensitive to low light but don’t detect color. That’s why everything looks grayish in the dark.
about 2 months ago
J
@jackbaker.29
The fovea (center of the retina) is packed with cones for color vision, but the periphery has more rods, so you actually see better in the dark if you look slightly to the side of an object.
about 2 months ago
B
@benjamingrant
Some people have conditions like retinitis pigmentosa that affect the rods and make it hard to see in low light.
about 2 months ago