755-nm Picosecond Laser With Diffractive Lens Array for Acne Scars in Fitzpatrick Skin Types V and VI

Abstract

BACKGROUND Patients commonly complain about the appearance of acne scars. While various lasers and energy-based devices can offer clinical improvement, many of them are limited in treating patients with skin of color. Concerns exist regarding efficacy and safety, including risks of scarring, prolonged dyspigmentation, necrosis, and burns. OBJECTIVE To examine the utility of a 755-nm picosecond laser with fractionated lens array in improving the clinical appearance of acne scars in patients with Fitzpatrick skin types V and VI. MATERIALS AND METHODS A prospective clinical study investigated this laser using up to 5 monthly treatments. RESULTS Twenty-four subjects were enrolled, while 17 subjects completed a 3-month follow-up. The mean age was 33.9 years, and 95.8% of the subjects were women. Fitzpatrick skin types V and VI were represented. Assessments compared baseline to 3-month follow-up. Two of the 3 blinded reviewers agreed on identifying pretreatment and post-treatment photographs for 82.4% of the cases. For physician Global Aesthetic Improvement Scale, 100% of the subjects had clinical improvement. Overall, 94.1% of subjects were satisfied with their treatment. No serious or unanticipated adverse events occurred. CONCLUSION A 755-nm picosecond laser with fractionated lens array can safely and effectively improve acne scars in patients with Fitzpatrick skin types V and VI.