Neovascular glaucoma is an uncommon type of glaucoma that is difficult or nearly impossible to treat. This condition is often caused by proliferative diabetic retinopathy (PDR) or central retinal vein occlusion (CRVO). It may also be triggered by other conditions that result in ischemia of the retina or ciliary body. Individuals with poor blood flow to the eye are highly at risk for this condition.
Neovascular glaucoma results when new, abnormal vessels begin developing in the angle of the eye that begging blocking the drainage. Patients with such condition begin to rapidly lose their eyesight.