Surgical correction of persistent adult-onset cyclic strabismus.

A 24-year-old man developed cyclic esotropia following vitreoretinal surgery for retinal detachment in his right eye. He underwent right eye medial rectus recession (6 mm) and lateral rectus resection (8.5 mm) under local anesthesia for the correction of cyclic esotropia. Following surgery, he developed a unique pattern of cyclic strabismus that involved alternation between esotropia and exotropia every 24 hours. To treat this condition, the patient underwent lateral rectus recession (8.5 mm) and medial rectus posterior fixation of medial rectus in the right eye. Following surgery, he was corrected for heterotropia on both esotropic and exotropic days.