Abstract
Purpose: To review the outcome of surgery for bilateral third nerve palsy. Methods: The series comprised 16 cases. The eye deviation in the primary position averaged −27.0° horizontally. Surgery was aimed at bringing both eyes into alignment in the primary position by recession-resection of horizontal muscles. Transposition of the superior oblique was performed for complete third nerve palsy. Surgery was initially performed on the nonfixating eye. The fellow eye underwent further surgery for residual disorders. Results: Within 6 months after surgery, the eye deviation in the primary position averaged −0.7° horizontally. After longer follow-up, the eye deviation averaged −4.7° horizontally. Postoperatively, diplopia in the primary position was absent in 11 and remained in 5 cases. Conclusion: Surgery for bilateral third nerve paresis or palsy achieved lasting cosmetic or functional improvements in the majority of cases.
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