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June 1938


Author Affiliations


Arch Ophthalmol. 1938;19(6):930-935. doi:10.1001/archopht.1938.00850180082006

The O'Connor cinch operation for tendon and muscle shortening, described in a recent textbook as "not so easy to perform," is greatly simplified and shortened with the new instruments and operative procedure described here. It is my operation of choice in all cases of divergent squint and in some properly selected cases of convergent squint of moderate degree.

The tendon and muscle are divided into three or four equal strands from the insertion back toward the equator, one, two or three loops of a cable (Dr. O'Connor's term is "shortener") composed of four, six or eight strands of medium dermal suture being used. The number of muscle divisions, loops and cable strands depend on the age of the patient, the degree of squint and the condition of the tendon and muscle found at the time of operation. Slight overcorrection in each eye is desirable. Care must be taken to