Adaptation to light is a function of iris and pupil sir?

Adaptation to light is a function of iris and pupil sir?

Rods and cones are involved in light adaptation and dark adaptation. Horizontal cells form the connection between the two.

The iris controls how much light enters the eye and falls on the retina. The retina which has the rods and cones processes the light through this layer of photoreceptor cells.

Thank you.