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Bristol Eye Hospital VITAMIN B12 is quite often given to patients with herpes zoster ophthalmicus as it has been reported to reduce the severity of the disease and the incidence of complications (Maclatchy, 1956; R6ssler, 1956).I thought that it would be interesting to see whether there was any evidence of vitamin B12 deficiency in these patients. MethodSixteen patients with herpes zoster ophthalmicus were examined and a history was taken, chiefly to make sure that they had not been given vitamin B12 recently in any form.
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J. M. Heaton (1959) studied this question.
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