Permanently changing your eye color isn't something you can readily do, but our ophthalmologist explains that there are four main ways they can do so naturally.

Cosmetic iris implanting, laser pigment removal, keratopigmentation: these new surgical techniques promise what was once in ...

Muscles in the colored part of your eye, your iris, then work to constrict or dilate your pupils, letting in more or less light as needed. 2. Medication "Certain medications can interfere with the ...

That coloured circle is called the iris… and the black spot in the middle ... There is a blind spot in both of your eyes. It is the point on the retina where the optic nerve joins the retina.

Learn about the anatomy of your eyes and how each part of the eye works in order to create visual output.