Pigmentary Glaucoma

Pigmentary glaucoma (also referred to as “ocular melanosis”) describes a pathological elevation in intraocular pressure, which occurs as a result of the proliferation and accumulation of cells containing melanin in the aqueous outflow tracts. Studies support a hereditary etiology. Symptoms are generally bilateral, although not always symmetrical and comprise the visible accumulation of pigment within the scleral/episcleral, corneal and/or uveal tissues as well as any combination of corneal edema, blepharospasm, episcleral injection, visual deficits, blindness and/or buphthalmos. Commonly affected breeds include the Cairn Terrier, Boxer & Labrador Retriever.