The uvea is the pigmented middle layer of the three concentric layers that make up the eye. The words comes from the Latin word for grape, and it is thought the name is given because, when dissected from the eye, the uvea looks like a wrinkled, purple grape skin. The uvea has three main parts: the iris, ciliary body and choroid. The iris is the most visible part of the uvea. It is the uniquely pigmented part of the eye that gives it color. If the iris is brown, a person is said to have brown...