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Toshu Inoue, Rishu Inoue, Ai Kozaki, Kouichi Nishiyama, Yoichi Inoue; Efficacy of Transcarunclar Decompression to Patients with Severe Compressive Optic Neuropathy in Dysthyroid Orbitopathy. Invest. Ophthalmol. Vis. Sci. 2012;53(14):1015.
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To study the efficacy of transcarunclar decompression to patients with severe, corticosteroid-resistant optic neuropathy in dysthyroid orbitopathy (DO).
The results of transcarunclar decompression was retrospectively studied 27 eyes of 20 patients ( 10 eyes of 7 males and 17 eyes of 13 females , aged 36to76) with corticosteroid-resistant optic neuropathy. The surgery was performed with ophthalmic microscope under general anesthesia. For orbital decompression the medial wall through the ethmoidal cells with or without the inferior wall through the orbital cavity. Visual acuity and MR imaging of orbitar apex were examined before and after surgery.
Visual acuities of almost all patients were improved to normal range except 2 eyes of 2 patients, which had visual acuity less than 20/200 before surgery. In 2 eyes of 2 patients were required additional surgery for the complication of diplopia. In MR imaging ethmoidal sinus was filled with orbital soft tissue including medial rectus muscle after surgery.
Transcarunclar decompression was efficacious as the surgical treatment of active stage of compressive optic neuropathy in DO.
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