The ______ automatically reacts to the intensity of light that comes through the tear film, cornea, and aqueous humor to regulate the amount of light entering the interior of the eye. – Optical Training Institute

The ______ automatically reacts to the intensity of light that comes through the tear film, cornea, and aqueous humor to regulate the amount of light entering the interior of the eye.

The ______ automatically reacts to the intensity of light that comes through the tear film, cornea, and aqueous humor to regulate the amount of light entering the interior of the eye.