Keratoconus and bilateral lattice-granular corneal dystrophies.

The occurrence of lattice and granular corneal dystrophies in the same eye has been reported in individuals who trace their families to the province of Avellino in Italy. We present the first histopathologic report of keratoconus and bilateral lattice-granular corneal dystrophies occurring in the same patient. This individual's family also originated in Avellino, Italy.