This disclosure concerns an interactive head-mounted eyepiece with an integrated processor for handling content for display and an integrated image source for introducing the content to an optical assembly through which the user views a surrounding environment and the displayed content wherein the optical assembly comprises a photochromic layer and a heater layer disposed on a see-through lens of the optical assembly, wherein the photochromic layer is heated by the heater layer to accelerate its transition from dark to clear.
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