It is characterized by three overlapping stages of venous inflammation (vasculitis), occlusion, and retinal neovascularization. The exact mechanism is not known but it has been preposed that T-cells play a role in the inflammation that begins in the eye. Vascular endothelial growth factor (VEGF) is found in an increased amount in patients with ED and explains the increase in vascularization within the eye. Neovascularization is stimulated by hypoxia or ischemia.
Eales disease
Bright's disease
Haff disease
Caroli disease
Meleda disease
Borna disease
Machado–Joseph disease
Elephantiasis