According to Helmholtz's analysis of the eye,the sharpness of focus within the visual field is
A) impressively acute only in a very small region near the center.
B) about the same quality as that produced by a good camera lens.
C) impressive evidence of the optical perfection of the eye.
D) uniform throughout the entire field.

Question

Quizplus · Accepted Answer

Helmholtz's analysis of the eye determined that the sharpness of focus is impressively acute only in a small area near the center of the visual field. This is due to the high density of receptors in the fovea, the central area of the retina, which allows for greater acuity in that area compared to the surrounding peripheral areas.

According to Helmholtz's Analysis of the Eye,the Sharpness of Focus