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Which part of the retina has the greatest density of light receptors and gives the sharpest vision?
AThe blind spot area
BThe fovea itself
CThe optic nerve exit
DThe cornea surface
Answer & Solution
Correct answer: B. The fovea itself
1. The centre of a focused image falls on the fovea.
2. The fovea has the greatest density of light receptors and therefore the greatest acuity, or sharpness, in the visual field.
3. The blind spot is the opposite case, a place with no receptors where the optic nerve meets the eye.
_Source: OpenStax Physics (CC BY 4.0), Ch 16 "Mirrors and Lenses", section 16.3 Lenses_
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