Although she is normally not aware of its existence, Ingrid discovers that she has a blind spot in her vision by closing one eye and focusing on a fixed point. What explains why Ingrid has this blind spot in her vision?
A) She suffers from retinal degeneration.
B) She is experiencing sensory adaptation.
C) No photoreceptors are located where the optic nerve leaves the eye.
D) There is insufficient light to activate her rods.

Question

Quizplus · Accepted Answer

No photoreceptors are located where the optic nerve leaves the eye, resulting in a blind spot in the visual field.

Although She Is Normally Not Aware of Its Existence, Ingrid