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Letter
Artefactual uniocular altitudinal visual field defect
  1. V Kumar,
  2. U S Ramanathan,
  3. B Mushtaq,
  4. P Shah
  1. Birmingham and Midland Eye Centre, Birmingham, UK
  1. Correspondence to: Mr Peter Shah, Birmingham and Midland Eye Centre, City Hospital NHS Trust, Dudley Road, Birmingham B18 7QH, UK Accepted for publication 15 May 2002

https://doi.org/10.1136/bjo.86.12.1442

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    Altitudinal visual field defects are commonly associated with ischaemic optic neuropathy and hemibranch artery or vein occlusion. Less commonly, altitudinal visual field defects can be seen in advanced glaucoma. Artefactual visual field defects are not uncommon; however, to our knowledge this is the first reported case of an artefactual uniocular altitudinal visual field defect due to an abnormally sensitive hemifield response with the automated Humphrey perimeter.

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    A healthy 61 year old woman was referred to the ophthalmology department by her optician who had noted a visual field defect in her left eye following a …

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