Waren Tay-sachs Disease in a Chinese Infant.

He was taken to hospital and did not recover consciousness for five days. XVhen he came to, he noticed that he could not open his left eye. There was no other paralysis but he was told that he had had a temporary left sided hemiplegia for the first three days. He noticed that when he lifted the left upper lid with his hand he saw double, The diagnosis was fracture of base of skull, nasal bones and left jaw with left-sided third nerve paralysis. When seen on January 20, 1947, we found as follows: Left eye closed, but he could lift the lid very slightly with the aid of the frontalis. Vision 6/6 in each eye. Left pupil larger than right and fixed to light and convergence. With the right eye looking straight forward and the left lid lifted manually (Fig. 1) the left eye was seen to be directed directly outwards. T'he corneal reflexes were on the same horizontal level. On directing his right vision to the extreme right the left eye came to the mid-line. No other movement of the left ewe was possible except in-torsion on asking the patient to look down. Both fundi were normal,