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  • Title: Incidence and treatment of diplopia after three-wall orbital decompression in Graves' ophthalmopathy.
    Author: Russo V, Querques G, Primavera V, Delle Noci N.
    Journal: J Pediatr Ophthalmol Strabismus; 2004; 41(4):219-25. PubMed ID: 15305532.
    Abstract:
    PURPOSE: To describe our experience treating diplopia after orbital decompression in patients with thyroid orbitopathy. PATIENTS AND METHODS: From May 1997 to July 2001, we performed orbital decompression on 102 patients (34 men and 68 women) with severe proptosis. In 10 (9.8%) of these patients who had no diplopia preoperatively, diplopia in primary gaze occurred after decompression. In 19 (18.6%) of the patients with diplopia in primary gaze before surgery, there was no modification of diplopia after decompression. In 24 (23.5%) of the patients with diplopia in primary gaze before surgery, a more severe imbalance occurred after decompression. Forty-four (83%) of these 53 patients underwent adjustable extraocular muscle surgery with the use of viscoelastic substances to gain single vision in primary position. In 9 (17%) of the patients, diplopia was resolved with the use of prismatic lenses. RESULTS: In 31 (70.4%) of 44 patients, we obtained a stable resolution of diplopia in primary position (minimum follow-up, 6 months). In 10 (22.7%) of these patients, a second surgery on the oblique muscles was necessary 6 months after the first surgery to resolve torsional diplopia. In 3 (6.8%) of the patients, diplopia has been resolved with prismatic lenses. CONCLUSION: Orbital decompression reduces proptosis, but may cause diplopia or worsen it.
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