An infant of 8 months with congenital glaucoma and hemophilia A lost one eye due to haemorrhages after trabeculotomy in an eye hospital. Only thereafter, the hemophilia A was discovered. We did a goniotomy of the fellow eye in November 1971 after normalization of the factor VIII activity. The intervention was without complications; now, 16 years later, the visual field is completely normal (Octopus), the visual acuity is 1.6, the intraocular pressure oscillates between 18 and 21 mm Hg. This report shows that it is possible to operate upon children with hemophilia A successfully, and that children must be checked before the first intervention for hemophilia A because of the severe consequences if it is not discovered or treated, although the condition is rare.