Question

Why is a blind spot called so?

Answer 1

Blind spot:

1. A blind spot refers to a small fragment of the visual field in each eye.
2. Photoreceptors are absent in this region and no image detection occurs in this specific area.
3. Visual perception does not occur in this region as the visual fields of both eyes overlap.
4. Due to the absence of photoreceptors, no light detection occurs and a blind spot is created.
5. The optic nerve leaves the eye through this area and the blind spot is present in all vertebrates.