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Yellow forelock--a new neuro-ophthalmological sign.
  1. R. I. Kellen,
  2. B. Schrank and
  3. R. M. Burde
  1. Department of Ophthalmology, Washington University School of Medicine, St Louis, Missouri.

    Abstract

    We examined a middle-aged man with a prominent yellow forelock who complained of loss of vision in both eyes. He smoked his pipe avidly and drank a little Bourbon whisky daily. The nicotine content of the forelock (21.7 ng/mg) was 10 times that of the hair on his occiput (2.23 ng/mg). A yellow forelock when associated with isolated painless visual loss suggests tobacco amblyopia.

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