Pattern dystrophy of the retinal pigment epithelium in Crohn's disease. A case report.

The authors describe a case of bilateral pattern dystrophy of the retinal pigment epithelium in a man with Crohn's disease. The patient was examined every 6 months over a follow-up of 30 months. The right eye presented a macroreticular dystrophy while in the left eye a butterfly pattern dystrophy was diagnosed. During the follow-up period the retinal lesion changed; in the right eye the lesion increased in size, while in the left eye the morphology of the lesion passed from the butterfly to Sjögren's type. This report adds a new ocular manifestation of Crohn's disease, emphasizing the importance of the ophthalmological follow-up in the recognition of posterior segment complications associated with this inflammatory bowel disease.