Progressive nature of pigmented paravenous retinochoroidal atrophy.

A 30-year-old man with pigmented paravenous chorioretinal atrophy showed, within a relatively short time, changes that documented the progressive nature of this disease. These changes included: further constriction of peripheral visual fields; more extensive and frequently confluent areas of retinochoroidal atrophy; a scalloped appearance of lesions resembling posterior gyrate atrophy; peripheral pigment clumping; and the presence of localized atrophic areas with crystal deposition in the peripheral retina.