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An unusual cause of acquired horizontal diplopia in a young adult
  1. Y C Wong1,
  2. K Y Goh1,
  3. C T Choo1,
  4. L L Seah1,
  5. J Rootman2
  1. 1Singapore National Eye Centre, Singapore
  2. 2University of British Columbia, Canada
  1. Correspondence to: Yiing Cheong Wong Singapore National Eye Centre, Singapore;

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Ocular examination revealed orthotropia in primary gaze with Snellen acuity of 6/6 bilaterally. Both the Humphrey visual fields and the colour vision testing were normal in both eyes. There was no relative afferent pupillary defects detected. Ocular motility testing revealed left abduction deficit with the resulting horizontal diplopia. Hertel’s exophthalmometer reading revealed no proptosis. Her fundi examination were both normal and there were no …

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