An area of the retina that contains only cones and is the site of sharpest vision is the fovea centralis.
What is fovea centralis?
Fovea is small depression in the center of the macula that has only cones and constitutes the area of maximum visual acuity.
The fovea is center of eye's sharpest vision and contains only cones. It is the point in the retina where the sharpest vision is possible.
The fovea is responsible for sharp central vision which is also called foveal vision and is necessary in humans for reading, driving, and any activity where visual detail is of primary importance.
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