Over the lifetime of an individual, a certain amount of uveal pigment is chronically dispersed into the anterior segment of the eye. This is perhaps best exemplified by the relatively non-pigmented trabecular meshwork of the infant eye in contrast to the more uniformly pigmented trabecular meshwork of an individual in his eighth or ninth decade of life. Vertical pigment on the corneal epithelium has been described in the literature since the late 1800’s. However, it was only in 1940 that Sugar first described pigment dispersion in association with glaucoma in a 29-year-old patient. In 1949, Sugar and Barbour described the features of the condition that is now referred to as ‘pigmentary glaucoma’. Pigmentary glaucoma is a secondary open-angle glaucoma characterized by homogenous brownish pigmentation of the chamber angle, pigment deposition on the corneal endothelium and slit-like, radial, midperipheral transillumination defects of the iris. When the anterior chamber findings exist in absence of elevated intraocular pressure, glaucomatous optic neuropathy or visual field defects, the condition is referred to as pigment dispersion syndrome.