Exemplar Problems

Question:

What are the key components involved in the sense of vision, and how does vision work?

Answer:

Vision involves the cornea, lens, retina, and optic nerve. Light enters through the cornea and lens, focusing on the retina. Photoreceptor cells (rods and cones) in the retina detect light and convert it into electrical signals. These signals are transmitted via the optic nerve to the brain’s visual cortex for processing.