Abstract

Lignocaine is the most commonly used drug for percutaneous anesthesia in oculoplastic procedures. Apart from allergic reaction which is the most commonly encountered adverse reaction to lignocaine there are reports of petechial and purpuric reaction .Literature shows report of one localized hypopigmentation following lignocaine infiltration .We report a case of an otherwise healthy young male who underwent bilateral punctal snip procedure. One month after the procedure he presented with localized hyperpigmentation at the sites of percutaneous lignocaine infiltration. Patient was treated with kojic acid cream for 2 months. He did not improve with the medications after 2 months of application . The pigmentation became gradually diffuse at a follow up of 2 months .Our case is interesting because this adverse effect had never been reported before and also the localised nature of hyperpigmentation suggest localised interaction of lignocaine in ionic form with the melanocyte molecules .

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