Fig. 74.—Left Visual Field, case 65
The lesion is one of the left occipital cortex in the cuneate lobe and the neighbourhood of the calcarine fissure. The speech suggests a slight degree of aphasia.
(66) Injury to occipital lobes.—Wounded at Magersfontein while in prone position. Distance, 500 yards. He says he was never unconscious, but for two days was absolutely blind. His eyesight gradually improved, but headache was very severe, and sleeplessness nearly absolute. On the eighth day the wound, which was situated over the right posterior superior angle of the parietal bone, was opened up, and a number of fragments of bone and a quantity of pulped brain removed from a depressed punctured fracture, surrounded by an annular fissure, completely encircling it, 1½ inch from the opening. The portion of brain destroyed was probably a considerable portion of the cuneate and precuneate lobules of both sides, as well as a portion of the first occipital convolution, and the superior parietal lobule of the right side. There was no evidence of injury to the superior longitudinal sinus in the way of hæmorrhage.
After the operation the patient slept better, but still complained of headache, and when he arrived at the Base, the flap became œdematous, and the stitch holes and also the central part of the wound suppurated. The temperature rose to 101°. The wound was therefore re-opened, and a number of additional fragments of bone, some as deeply situated as 2 inches from the surface, were removed. Steady improvement followed, and at the end of a further three weeks the wound was healed, the headache had ceased, and there were no abnormal symptoms, except that light was unpleasant to the right eye, and the field of vision was manifestly contracted (Mr. Pooley).
A year later the man was employed as a letter-carrier. He complains of headache at times, and on six occasions has had 'fainting fits.' He says that the latter commence with tremor, that his legs then give way and he falls. In a quarter of an hour he gets up, and feels no further inconvenience. Speech is perfect, there is no deafness. The bone defect is very nearly completely closed.
Mr. Fisher reports as follows as to the vision. There is a high degree of hypermetropia in each eye, the R. has nearly 6.0 D and the L. about 5.0 D. With correction he gets practically full direct vision with each.
