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

Medically reviewed by Christine L. Larsen, MD Medications, trauma, and medical conditions can lead to abnormally small pupils ...

a layer of tissue just inside the outer white part of your eye. The uvea is made up of a layer of blood vessels, a muscular ring that surrounds your pupil, and the iris, the colored part of your eye.

Female Narrator Because so many diseases can first be seen inside the eye, you have a greater opportunity for early diagnosis and treatment... making a yearly dialated eye exam well worth the time.

That coloured circle is called the iris and the ... the front of the eye is curved, it bends the light as it goes in, turning the image on the retina upside down. Inside the retina, there are ...