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This study investigated the surgical outcome according to the initial postoperative angle of deviation after strabismus surgery in patients with hypotropia and esotropia who had thyroid eye disease (TED). The study included 78 patients with mean age of 53.4 ±9.5 years; 55.1% female. Hypotropia was present in 51 patients and esotropia in 27. Eleven patients underwent orbital decompression before strabismus surgery. Mean postoperative follow-up was 17.4 ±8.7months. On the first postoperative data, under correction, correction and over correction was noted in 49%, 23.5% and 27.5% respectively for hypotropia. This was 48.2%, 22.2% and 29.6% respectively for esotropia. Mean success rate at final visit was 65.4%. Twelve patients had reoperation for over correction of hypotropia and three for residual hypotropia. Three hypotropic patients needed prisms for diplopia in primary gaze during the follow-up period. Six patients with over corrected esotropia had reoperation, one for residual esotropia and two needed prisms. Success rates for hypotropia and esotropia were better in under corrected or fully corrected groups. The authors conclude that intended minimal under correction or full correction could improve surgical success rates.

Initial postoperative alignment in strabismus related to thyroid eye disease.
Ha S-G, Kim S-H.
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Fiona Rowe (Prof)

Institute of Population Health, University of Liverpool, UK.

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