Migrainoid headaches; their ocular manifestations.

HEADACHE is unquestionably the commonest and one of the most distressing ailments within the entire realm of medicine and, paradoxically, is even at the present time one of the least well understood; it has usually been considered an annoying accompaniment of many and diverse derangements of the human body, and its descriptions and analyses have been largely clinical and little concerned with its causative processes. Examination of many thousands of inductees into military service at the Boston Induction Station in World War II revealed that headache was the most frequent bodily complaint, and it was demonstrated that in over 50 per cent of persons who showed unfitness for service the chief complaint was headache. The implications 1 of this symptom may be serious or benign; and, although the intensity of the headache may bear little relation to actual tissue injury, failure to distinguish between the severe headache of subdural hemorrhage,