Glossary
Iris: The colored circle at the front of the eye, which secretes nutrients to keep the lens healthy, and controls the amount of light that enters the eye by adjusting the size of the pupil.Ciliary Body: Muscular part between the iris and the choroid, which helps the eye focus by controlling the shape of the lens.
Choroid: A network of blood vessels for providing nutrients to the retina located between the outer sclera and inner retina.
Lens: Transparent tissue that allows light into the eye.
Retina: The layer of cells on the back of the eye that converts light into electrical signals and send them to the brain.
Vitreous chamber: The fluid that fills the posterior chamber of the eye.
Uvea: The middle layer of the eye which consists of the iris, ciliary body and choroid.
