Unilateral Meesmann's dystrophy.

We report the first case of a unilateral microcystic Meesmann's epithelial dystrophy, observed in the left cornea of a 43-year-old patient. The diagnosis was verified histologically by the unilateral occurrence of a 'peculiar substance' within epithelial cysts and within the cytoplasm of the corneal epithelial cells. In an attempt to resolve the patient's frequent corneal erosions, we performed an autologous stem cell transplantation from the non-involved right eye. The results are, so far, satisfactory.