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Until now, there has been no highly effective treatment for repigmenting hypopigmented scars and striae alba. Ultraviolet B treatment has been only moderately successful because of its inadequate intensity and the difficulty of focusing the light to the areas of scarring. The development of high-intensity 308-nm excimer lasers may have eliminated these limitations. In a prospective, controlled trial, 31 patients with hypopigmented scars or striae alba of the face, trunk, or extremities were treated by laser at just below the minimal erythema dose. Treatment was provided twice weekly until 50% to 75% pigment correction was achieved and then every 2 weeks for a maximum of 10 treatments.
Visual observation and colorimetric measurement were used…