Corneal dystrophy lesions is an unknown aetiology which may manifest either at birth or in 1st or 2nd decade of life and may remain stationary or progressive. It has got strong here do familial tendency.

The associated anomalies are as follows: Congenital glaucoma Keratoconus Anterior staphyloma Congenital absence of des membrane Deafness primarily known as Cogan's syndrome Keratoconjunctivitis sicca Medullated optic nerve fibers Conjunctival xerosis Ptosis upper lid