Operations on One Hundred Cases of Convergent Concomitant Squint.

THE following series of 100 consecutive cases operated on for convergent concomitant squint is recorded to; show the degree of success which can be obtained by operation combined with orthoptic treatment. The patients were children from 6 to 14 years old, referred from the Salford Education. Committee Clinic and operated on at the Salford Municipal Hospital. It is estimated that in the orthoptic clinic approximately 45 per cent. of concomitant squint cases are of the accommodative type and respond .satisfactorily to tredtment by glasses and orthoptics without operation. Of the rest, less than1 per cent. suffer from conditions such as nystagmus, rendering them unsuitable for operation. This series is representative of the remainder, though some of the cases on the waiting list were -operatedon before their turn, owing to their having almost reached the school-leaving age, and one of the cases of inferior oblique overaction was given poity owingto its clinical interest. g p Of the 100 cases, it was found that binocular vision at the angle of squint was obtained prior to operation in 45 cases. These cases are referred to as treatment cases. The remaining 55 cases are referred to as cosmetic cases. In 19-of these no attempt at occlusion-or orthoptic treatment was made, as the children were either at evacuated schools, rendering repeated attendances impossible,