Cases of well-defined lateral homonymous hemianopsia must ever, in the nature of things, be rare; and such phenomena arising from a wound and uncomplicated with other symptoms, must, if possible, be still rarer. Of course, the impossibility in this case of demonstrating the actual abnormal state of the involved part of the brain detracts from its interest; but there are several questions which arise in connection with such a case which may be profitably passed in review. I will first report the case:
W. S., male, 21 years of age, came to the clinic at St. Lukes's Hospital, Chicago; he had previously been to another institution in the city, but, as he was complaining of a noise in the ears, he was referred to the ear department and no observation seems to have been made of the eyes. He still complained of a noise in the head on the left