SUPERIOR OBLIQUE TENDON LENGTHENING FOR ACQUIRED SUPERIOR OBLIQUE OVERACTIONS

Two patients who presented with compensatory head postures and diplopi a are described. They both had marked unilateral superior oblique over action, in one patient due to a large, incomitant skew deviation. Each underwent a superior oblique tendon lengthening procedure using a seg ment of silicone 240 retinal band as an expander, in combination with a contralateral superior rectus recession. Both achieved an excellent result with an improvement of the compensatory head posture and an inc rease in the field of binocular single vision. This surgical procedure is proposed as an option in the management of superior oblique overac tion, including certain cases of skew deviation.