A 16-year-old girl with bilateral microphthalmos,
aplasia of the right optic nerve, and a large cerebellar Dandy-Walker cyst
was described. She was mentally normal, and no clinical consequences from
the Dandy-Walker cyst were mentioned. Her 13-year-old brother had unilateral
optic nerve aplasia with ipsilateral cryptophthalmus and contralateral
microphthalmos. He suffered from significant mental retardation.