<unk>  is a general term that refers to some form of non-inflammatory damage to the retina of the eye. Most commonly, it is a problem with the blood supply that is the cause for this condition.
Frequently,<unk>  is an ocular manifestation of systemic disease.
Retinopathy
Optic neuropathy
Peripheral neuropathy
Color blindness
Dry eyes
Ocular hypertension
Red eye  
Red eye