“…The local habit of referring eye patients to this clinic seems to make the selection of the material representative of cases with primary traumatic hyphema under the care of ophthalmologists. I t differs from some materials described in the literature, such as those of Thygeson &Beard (1952) andLoring (1956), which included many patients who were referred because of recurrent hemorrhage, but it seems to be comparable to that of Gregersen (1962 I).…”