<unk>  (OM) is a blue-gray and/or brown lesion of the conjunctiva that can be separated into benign conjunctival epithelial<unk>  (BCEM) and primary acquired<unk>  (PAM), of which the latter is considered a risk factor for uveal melanoma. The disease is caused by an increase of melanocytes in the iris, choroid, and surrounding structures. Overproduction of pigment by these cells can block the trabecular meshwork through which fluid drains from the eye. The increased fluid in the eye leads to increased pressure, which can lead to glaucoma. In humans, this is sometimes known as pigment dispersion syndrome.
Ocular melanosis
Macular corneal dystrophy
Band keratopathy
Bullous keratopathy
Cryptophthalmos
Granular corneal dystrophy
Corneal dystrophy
Sympathetic ophthalmia