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KMID : 1038920170160040141
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Annals of Optometry and Contact Lens
2017 Volume.16 No. 4 p.141 ~ p.144
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A Case of Canine Tooth Syndrome due to Orbital Trauma
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Lee Dong-Eun
Moon Sung-hyuk
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Abstract
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Purpose: To report the result of strabismus surgery in a patient diagnosed with canine tooth syndrome.
Case summary: We examined a 57-year-old female patient complaining of binocular diplopia, who had a past history orbital trauma. She showed 14 prism diopter right hypertropia and 6 prism diopter exotropia at the primary position and also showed limitation of elevation and depression in adduction of right eye. Her visual acuity, with no eyeglasses, was 1.0 and 1.0 at right and left eyes. Orbital computed tomography and magnetic resonance imaging showed injury of the right trochlea and the superior oblique muscle. In conjunction with the imaging findings and physical examination, we were able to diagnose canine tooth syndrome. She complained of binocular diplopia at the primary position and the down gaze position, so we performed superior oblique yoke muscle surgery which is inferior rectus recession and posterior fixation surgery of left eye. Seven months after surgery, although she showed 4 prism diopter right hypertropia and 4 prism diopter exotropia at the primary position, binocular diplopia of the primary position and down-gaze position had improved.
Conclusions: We report this case of canine tooth syndrome, the symptoms of which improved after yoke muscle surgery, inferior rectus recession and posterior fixation.
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KEYWORD
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Brown syndrome, Canine tooth syndrome, Faden operation, Orbital MRI, Yoke muscle
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