The<unk>  is affected by glaucoma, diabetes, and<unk>  inflammations and atrophies of various kinds, generally responding by showing patchy thinning and depigmentation. In albinism, it is fully or partially nonpigmented and translucent, which contributes to the photophobia of that condition. However, diseases specific to the<unk>  itself are almost non-existent, and it seems to be a highly differentiated, stable cell type that almost never gives rise to malignancies, unlike the melanocytes of the<unk>  stroma. Reports of adenomas and adenocarcinomas of the<unk>  exist, but some of these are debatable.
Iris pigment epithelium
Corneal endothelium
Retinal nerve fiber layer
Macula of retina
Corneal keratocyte
Layer of rods and cones
Corneal limbus
Scleral lens