The
colored part of the eye is called the iris. It controls light levels
inside the eye similar to the aperture on a camera. The round opening in
the center of the iris is called the pupil. The iris is embedded with
tiny muscles that dilate (widen) and constrict (narrow) the pupil size.
The
colored part of the eye is called the iris. It controls light levels
inside the eye similar to the aperture on a camera. The round opening in
the center of the iris is called the pupil. The iris is embedded with
tiny muscles that dilate (widen) and constrict (narrow) the pupil size.