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Br J Ophthalmol 2008;92:1449
  • Cover illustration

Trail of trial lenses

  1. Richard Keeler,
  2. Arun D Singh,
  3. Harminder S Dua

      Courtesy of Mr Richard Keeler, Curator, museum of the Royal College of Ophthalmologists, London. Photo: Mark Thomas

      The itinerant spectacle seller was using trial lenses in the form of pairs of lenses held in a frame as early as the 17th century. In 1838 …

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