1 University of Michigan, Ann Arbor, MI 48109
Transillumination has become a standard diagnostic tool in the neonatal intensive care unit. Most centers now
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utilize a fiberoptic light probe such as the Mini-Light or Omni-Source light (Med General, Minneapolis) for transillumination. We have used this device for several years and have noticed that over time there is a continual loss of fiberoptic bundles, which gradually diminishes the overall intensity of the light. This may not be visually apparent until a significant number of contiguous fibers have broken (Fig 1).