{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,3]],"date-time":"2026-06-03T09:25:02Z","timestamp":1780478702688,"version":"3.54.1"},"reference-count":28,"publisher":"BMJ","issue":"8","content-domain":{"domain":["bmj.com"],"crossmark-restriction":true},"short-container-title":["Br J Ophthalmol"],"accepted":{"date-parts":[[2023,10,23]]},"published-print":{"date-parts":[[2024,8]]},"abstract":"<jats:sec><jats:title>Background<\/jats:title><jats:p>Orbital decompression is commonly performed to correct proptosis in patients with Graves\u2019 orbitopathy (GO). In literature, the incidence of new-onset constant diplopia after orbital decompression varies. Few studies have evaluated changes in duction and cyclodeviation after orbital decompression. We evaluated the changes in duction, cyclodeviation, eye position and degree of diplopia after orbital decompression.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>We retrospectively analysed data from patients who underwent orbital decompression at our hospital between January 2016 and July 2020. Data regarding the type of decompression, eye position, duction, cyclodeviation and level of diplopia according to the Gorman score were recorded.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Data from 281 eyes\/orbits of 156 patients were analysed. Proptosis decreased from 23.8\u00b12.5\u2009to 20.9\u00b12.5\u2009mm. Horizontal and vertical duction range decreased (horizontal d=0.40\u2009and vertical 0.30; p=0.000) after surgery; however, the change was not clinically significant (\u22645\u00b0). Horizontal deviation changed towards esodeviation (d=\u22120.45; p=0.000), whereas vertical deviation remained stable (d=0.15; p=0.161). Preoperative cyclotorsion in the primary and downgaze positions changed towards incyclodeviation (primary: d=0.30, p=0.021; downgaze d=0.30, p=0.039). Diplopia improved in 22% (18 patients), whereas new-onset constant diplopia developed in 11% (12 patients). Elevation has an excellent predictive value of causing new-onset constant diplopia when measured preoperatively as &lt;19\u00b0, sensitivity 88.0%, specificity 41.7% (area under the curve 0.812 (95% CI 0.660 to 0.963); p=0.000).<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>After orbital decompression, incidence of new-onset constant diplopia was 11% and 22% of the patients had partial or complete improvement of their diplopia. The changes in duction, cyclodeviation and horizontal deviation showed a statistical but not clinical difference. Patients with GO and a preoperatively restricted elevation of &lt;19\u00b0 are at risk of developing new-onset constant diplopia. In addition, preoperative incyclodeviation may worsen after decompression surgery.<\/jats:p><\/jats:sec>","DOI":"10.1136\/bjo-2023-323480","type":"journal-article","created":{"date-parts":[[2023,11,27]],"date-time":"2023-11-27T18:28:35Z","timestamp":1701109715000},"page":"1075-1080","update-policy":"https:\/\/doi.org\/10.1136\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":4,"title":["Effects of orbital decompression on duction, cyclotorsion and diplopia"],"prefix":"10.1136","volume":"108","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-0435-096X","authenticated-orcid":false,"given":"Hinke 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