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Picosecond laser with diffractive lens array improved appearance of acne scars

The appearance and texture of facial acne scars were shown to improve at 3 months after treatment with a 755-nm picosecond laser and diffractive lens array, with minor-to-moderate pain reported, according to study results.

Researchers enrolled 20 patients with Fitzpatrick skin types I through V and facial acne scarring in the single-center, prospective study. Patients received six treatments with a 755-nm alexandrite picosecond pulse duration laser with diffractive lens array. The researchers recorded pain and satisfaction scores for texture and overall appearance, performed a masked assessment of clinical photographs and analyzed 3-D volumetric data. Additionally, biopsy specimens were obtained at baseline and at 3 months after the final treatment for independent histologic evaluation.

According to study results, the mean pain score was 2.83 out of 10. The researchers found patients were satisfied to extremely-satisfied with the improvement in appearance and texture seen at the final treatment and follow-up.

Three-dimensional analysis revealed a mean 24.3% improvement in scar volume, maintained at 1 and 3 months after treatment, according to the researchers.

The researchers also found an elongation in the dermis and increased density of elastic fibers, an increase in collagen III, and an increase in deposition of mucin throughout all layers of the dermis.

Disclosure: See the study for a full list of all authors’ relevant financial disclosures.