Abstract

It is well documented that work with lasers poses a risk of ocular radiation damage. We specifically investigated the risk of intense backflash during laser treatment of gastrointestinal bleeding. Two well-characterized models of mucosal reflections are used to document flashback levels on several standard fiberoptic endoscopes. Both argon and neodymium–YAG laser sources are evaluated. Filter attachments that will provide adequate protection from the flashback hazard are also described.

© 1979 Optical Society of America

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