Where does S cone density peak?

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Multiple Choice

Where does S cone density peak?

Explanation:
S-cone density isn’t highest right at the fovea. The very center of the visual detail area is dominated by L- and M-cone inputs, with relatively few S-cones, so there’s a dip there. As you move a short distance away from the foveal center, S-cone density rises and reaches a peak at about 0.5 degrees from the fovea. Beyond that, their density tapers off as the retina transitions to more M/L-cone input and eventually rod-dominated areas. That off-center peak around half a degree best explains where S-cone density is greatest.

S-cone density isn’t highest right at the fovea. The very center of the visual detail area is dominated by L- and M-cone inputs, with relatively few S-cones, so there’s a dip there. As you move a short distance away from the foveal center, S-cone density rises and reaches a peak at about 0.5 degrees from the fovea. Beyond that, their density tapers off as the retina transitions to more M/L-cone input and eventually rod-dominated areas. That off-center peak around half a degree best explains where S-cone density is greatest.

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