We report three cases in which cosmetic injections of botulinum toxin A around the eye caused diplopia. Diplopia was due to inferior oblique paresis, which was bilateral in two cases. We suggest that consent for periocular botulinum toxin procedures should include a warning about diplopia.

In their study of adult coprophagics, Ghaziuddin and McDonald (1985), suggest that the absence of thiamine deficiency in their series appears to differentiate it from coprophagia observed in animals. They base their assumption on a single study of experimentally induced thiamine deficiency in beagle dogs. These animals developed coprophagia during the course of the experiment (Read & Harrington, 1981). It does not follow that clinical cases of coprophagia in adult dogs are inevitably due to thiamine deficiency. Coprophagia is a relatively common condition in