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 49-year-old white woman was referred by an outside eye provider to the glaucoma service at Tufts Medical Center for ...

MIT engineers have made a breakthrough in this area—they’ve developed a method to grow muscle tissue that contracts in ...

That coloured circle is called the iris and the black spot in the middle is the pupil. This is the part of the eye that lets the light in. Lights out please! When it’s dark, muscles in the iris ...

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. Together, they help your eyes focus so you can clearly see ...

MIT engineers developed a method to grow artificial muscle tissue that twitches and flexes in multiple, coordinated ...