Peggy cannot see a star as she is looking straight up at it, but she can see it from the corner of her eye. Peggy's vision is most likely:

Question

Quizplus · Accepted Answer

Peggy's ability to see the star from the corner of her eye indicates that she is using her peripheral vision. This is a typical phenomenon as our peripheral vision is more sensitive to detecting objects that are on the periphery of our visual field. Option A is incorrect because color blindness is unrelated to this phenomenon. Option B is incorrect because the blind spot is a different phenomenon, which occurs due to the absence of photoreceptor cells in the optic nerve head. Option D is also incorrect because foveal vision is sharper than peripheral vision, but it is not related to Peggy's ability to see the star.

Peggy Cannot See a Star as She Is Looking Straight