People with aniridia lack an iris -- the colored part of the eye surrounding the pupil. But that's the least of their problems, said Jill Nerby, founder of the nonprofit Aniridia Foundation ...

The iris is the colored portion of the eye. A combination of the parents ... The organization warns that buying lenses without a prescription increases the risk of developing: itchy, watery ...

Eye color is a result of melanin deposits in the iris, which is the part of the eye ... of heterochromia in humans are benign and occur without any underlying abnormality. According to the Genetic ...

Your eye is a slightly asymmetrical globe, about an inch in diameter. The front part (what you see in the mirror) includes: Just behind the iris and pupil lies the lens, which helps focus light on ...

“They tell me it’s too risky, because you only have one set of eyes,” Titus said. Procedures called iris implants have received US Food and Drug Administration approval for people who are ...

Fluid drains out of your eye through a system of canals. These canals live in a mesh of tissue between your iris (the colored part of your eye) and your cornea (the clear outer layer). When your ...