[Refractive errors, amblyopia and strabismus in congenital ptosis].

Fifty-four consecutive surgical cases of congenital ptosis were carefully evaluated to determine the incidence of refractive errors, strabismus and amblyopia. Of these patients, 70% had a refractive error, 43% had an astigmatism of more than 1.0, 55% had anisometropia, 27.5% had concomitant squint and 50% amblyopia.