Ocular torsion variation after superior oblique weakening procedure - a case report

Purpose: to objectively evaluate the torsional effect of the tenectomy of the superior oblique muscle (SO). Design: case report of one of the patients of the group studied in the previous paper "Measurement of the ocular torsion variation after superior oblique tenectomy". Methods: case report of a patient with horizontal strabismus and bilateral SO muscle overaction who was submitted to bilateral SO tenectomy. Obejective access of ocular torsion was held by retinogrphy and a computer software (Autocad 2009). Results: the preoperative angle was 7.57 in the right eye and 0.66 in the left eye. Postoperative torsion angle was 4.22 in the right eye and -1.50 the left eye. Conclusion: the present case suggests that SO tenectomy has an extorter effect, decreasing the intorsion detected in case of SO overaction