The region of the vertebrate eye where the optic nerve passes out of the retina is called:

Correct option is B

Correct Answer: (b)
Explanation:
The blind spot (optic disc) is the point on the retina where the optic nerve exits the eye, and no photoreceptor cells (rods or cones) are present.
Information Booster:
The blind spot is insensitive to light because it lacks rods and cones.
The optic nerve carries impulses from the retina to the brain.
The fovea centralis, on the other hand, is the area of sharpest vision.
The iris controls pupil size and regulates light entry.
The optic chiasma is the brain region where optic nerves cross.
Additional Information:
(a) Iris regulates light, not vision.
(c) Optic chiasma lies outside the eye.
(d) Fovea is the point of highest visual acuity, not nerve exit.