Congenital Retinal Fold

The observation of 4 cases of congenital retinal folds within six months prompted a study of the subject and is the basis of this report. Apparently no communication on this topic has been published in the American literature, and it was thought worth while to add these cases to those already reported. REPORT OF CASES Case 1. —S. S., a man aged 30, was first seen on Feb. 3, 1939. The vision in the right eye had been poor since birth, and he had always had a lateral nystagmus in each eye. The vision in the right eye was found to be limited to perception of light, unimproved with a + 5.50 sphere. In the left eye the vision was 20/400; it improved to 20/30—with a—4.50 sphere C—1.00 cylinder, axis 118. A marked horizontal nystagmus was present in each eye. Examination of the right eye showed the following positive