The handpiece was not returned for evaluation.The serial number (s/n) was not provided and could not be determined based on the information provided.Therefore, manufacturing information could not be obtained.With no additional, related information provided, the customer reported event could not be confirmed.The root cause could not be determined conclusively.Corneal burn is an issue that is occasionally reported with cataract surgery.According to the pennsylvania patient safety advisory abstract: preventing corneal burns during phacoemulsification, march 2010, vol.7, no.1: 23-25, most corneal burns can be traced to issues related to surgical technique and not to malfunctioning equipment.The manufacturer internal reference number is: (b)(4).
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