Endoscopic transnasal orbital decompression for dysthyroid orbitopathy

Objective: To evaluate the effect of endoscopic transnasal orbital decompression for patients with dysthyroid orbitopathy.

Methods: Nine cases (15 eyes) of dysthyroid orbitopathy were included in this study. All patients were treated by transnasal endoscopic orbital decompression.

Results: The follow-up ranged from 6 months to 2 years. Proptosis measured' by exophthalmoter reduced from (21.93 +/- 1.49) mm to (16.87 +/- 1.25) mm after operation. The visual acuity improved from 0.57 +/- 0.12 to 0.69 +/- 0.12, the palperbral fissures reduced from (11.07 +/- 1.44) mm to (8.20 +/- 1.15) mm. Postoperatively, the orbital pressure was significantly decreased as compared with the preoperative result (P < 0.001). Diplopia was cured in 3 of 7 cases.

Conclusions: Endoscopic transnasal orbital decompression is an effective method for the treatment of dysthyroid orbitopathy.