Uveitis is an inflammation of the eye's structures responsible for its blood supply. The structures, called the uveal tract, include the iris, ciliary body and choroid. There are three major types of uveitis, each classified by the structures it affects. 1. Anterior uveitis (also known as iridocyclitis)

Retinal vascular occlusions may involve both arteries and veins. Far more common are retinal vein occlusions. They occur when a retinal vein becomes obstructed by an adjacent blood vessel. This causes hemorrhage in the retina, which can result in swelling and lack of oxygen to the retina and sometimes

Laser treatments are used for a variety of vascular occlusions. For central vein occlusion, the purpose of the treatment is to prevent further growth of new blood vessels in the front of the eye. For branch vein occlusions and macular edema (swelling), the treatment is used to close leaky blood vessels