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What are the cells of the eye called that are most sensitive to light?



A. Rods
B. Cones
C. Cornea

This question is part of Special Senses Quiz
Asked by Jmerrick, Last updated: Sep 14, 2020

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3 Answers

neazea

neazea

neazea
Neazea

Answered Dec 07, 2016

My text book states that "Rods are our dim-light peripheral vision receptors. They are more numerous and FAR MORE SENSITIVE TO LIGHT than cones"
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John Adney

John Adney

John Adney
John Adney

Answered Nov 24, 2016

The correct answer is Rods not Cones. Rods are a lot more sensitive to light than are cones. Therefore, in very bright light the rods are not used at all. This is also why rods are used for seeing in low lights areas: their high sensitivity to light allows them to work even in low light areas. Cones, on the other hand, have low sensitivity to light. Therefore, they need a lot of light in order to see correctly. This is why you cannot see in color in low light conditions: there is simply not enough light to activate the cones, which provide color vision. Cones are used in high light areas, but this does not mean they have high sensitivity to light. For a good, non-technical, explanation of this see:https://faculty.washington.edu/chudler/retina.html

Thanks for correcting this error.

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John Smith

John Smith

John Smith
John Smith

Answered Nov 25, 2016

Cones
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