What is photo phobia?

What is photo phobia? Photophobia is eye discomfort in bright light. The cornea allows light to enter the eye. As light passes through the eye the iris changes shape by expanding and letting more light through or constricting and letting less light through to change pupil size.

Photophobia is eye discomfort in bright light. The cornea allows light to enter the eye. As light passes through the eye the iris changes shape by expanding and letting more light through or constricting and letting less light through to change pupil size.