Like other laser devices, the 308-nm excimer laser emits a monochromatic and coherent beam of light, can selectively treat a lesion while sparing surrounding healthy skin, and can deliver high fluencies. High-dose 308-nm excimer laser for the treatment of psoriasis. Objective: The goal of this investigation was to evaluate the role of high-dose single treatments with the excimer 308-nm laser in stable plaque-type psoriasis. Selectivity of the 308-nm excimer laser, when compared with non-selective narrow-band UVB (NB-UVB) phototherapy allows one to adjust the fluency to the lesion.
Xtrac Excimer 308-nm laser is a laser light source that delivers a specific wavelength (308 nm) of UVB radiation. At this stage, excimer laser therapy is an option for the treatment of psoriasis in a select group of patients.