Many people often do not have symptoms until very late in their disease course. Patients often become symptomatic when there is irreversible damage. Symptoms are usually not painful and can include: * Vitreous hemorrhage * Floaters, or small objects that drift through the field of vision * Decreased visual acuity * "Curtain falling" over eyes
Retinopathy
Maculopathy
Optic neuropathy
Peripheral neuropathy
Color blindness
Arthropathy
Retinal degeneration 
Ocular hypertension