Abstract: The invention relates to a method and apparatus for multipulse laser treatments on a spot target by using a CO2 laser system and a laser beam scanner attached at the end of the delivery system. The laser system is controlled to emit a laser macropulse consisting of a series of micropulses with pulse durations in the range of microseconds to a few milliseconds. The first group of pulses is delivered to cause minimal thermal damage to the peripheral area in the epidermis and dermis, while creating a pinhole epidermal window down into the dermis, through which the subsequent pulses, which are longer in pulse duration and lower in energy, deliberately create thermal diffusion through conducted heat to create thermal damage in the targeted area of the dermis.

Abstract: A patient interface device adapted to provide an interface between a cornea and a surgical laser system. A frame has an applanation end and an attachment end which is adapted to couple to the surgical laser system. A skirt is affixed to the applanation end of the frame and is adapted to seal against the anterior surface of the cornea to form a chamber. A lens is disposed near the applanation end of the frame and is supported by a flexible support which affixes the lens to the frame.