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Refractive change in hyperglycaemia: hyperopia, not myopia.
  1. P R Eva,
  2. P T Pascoe and
  3. D G Vaughan


    Sudden changes in refraction are well recognised feature of hyperglycaemia. A tendency towards myopia has always been associated with elevations in blood glucose. Twelve diabetic patients were found to have experienced such refractive changes. Review of their records demonstrates that hyperglycaemia produces hyperopia. A theoretical mechanism for this phenomenon is discussed.

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