<unk>  is a disease of the human eye wherein the peripheral retina becomes atrophic in a<unk>  pattern and may develop tears, breaks, or holes, which may further progress to retinal detachment. It is an important cause of retinal detachment in young myopic individuals. The cause is unknown, but pathology reveals inadequate blood flow resulting in ischemia and fibrosis.<unk>  occurs in approximately 6–8% of the general population and in approximately 30% of phakic retinal detachments. Similar lesions are seen in patients with Ehlers-Danlos syndrome, Marfan syndrome, and Stickler syndrome, all of which are associated with an increased risk of retinal detachment. Risk of developing<unk>  in one eye is also increased if<unk>  is already present in the other eye.
Lattice degeneration
Ballooning degeneration
Feathery degeneration
Degeneration 
Calcification
Remyelination
Joint locking 
Demineralization 