2. How can we see?
We see objects when a process that
involves the eyes and the brain occurs
Hinweis der Redaktion
Light enters through the cornea. The cornea protects the eye. It also acts like a lense, focusing light rays.Then it enters the pupil, an opening in the eye. Dim light = bigger pupil. Bright light = smaller pupil.Iris is muscle that expands to change size of pupil. Iris gives color