A person with vitamin A deficiency develops twilight vision disturbance. Name the cells that fulfill this photoreceptor function:

Answer options

1. Horizontal cells of retina
2. Ganglionic nerve cells
3. Cone cells
4. Bipolar neurons
5. Rod cells

Explanation

A person with vitamin A deficiency develops twilight vision disturbance. Name the cells that fulfill this photoreceptor function:Rods are rod-like structures and are required for dim light (twilight/ night) vision. Both rods and cones contain light-sensitive pigments. Rod cells contain a purplish pigment known as visual purple or rhodopsin and it is formed from vitamin A.