Retinal injury by industrial laser burn.

The following case study describes an injury sustained to the fovea of the right eye of a senior en gineer engaged in the repair of a neodymium-doped yttrium aluminium garnet (Nd:YAG) laser. Our patient presented with sudden loss of vision in his right eye following accidental exposure to an intense beam of light after the laser's xenon flash-lamp fired unexpectedly. This accident occurred while the patient was aligning the optical coupler mirror parallel to Nd:YAG laser rod ends using an L-CAT alignment aid. We describe the mechanism of retinal injury, outcome and important issues regarding the safe use of lasers.