Evaluation of the Safety and Efficacy of a Low Fluence, Picopulsed, Alexandrite Laser in a Pico-Toning Technique With a Diffractive Lens Optic for the Treatment of Photodamage and Textural Improvement in "Off the Face" Applications.

BACKGROUND

The diffractive optic coupled with a picosecond pulsed alexandrite laser has been shown to effectively minimize pigmen- tation while improving the appearance of textural irregularities and rhytides. We evaluated the safety and ef cacy of the diffractive optic laser treatment for off of the face applications including the hands and décolletage in a pico-toning technique.

STUDY

20 healthy female patients (40-70 years of age) were treated with a picosecond pulsed alexandrite laser with a diffractive lens. 10 of the patients were enrolled in a prospective hand assessment study (20 hands) while the remaining 10 subjects were enrolled in an IRB approved study treating photodamage of the décolletage. Protocol for both groups included 4 treatments to the designated area with a picopulsed alexandrite laser with a diffractive lens on a 6mm handpiece delivering 0.71 j/cm2 with 10 hz repetition at 3 week intervals (+- 7 days) with follow up at 1 month and 3 months post fourth treatment using standardized digital photography.

RESULTS

Statistically signi cant improvement in the overall appearance of pigmentation, texture and rhytides were recorded at each sub- sequent visit and at 1 and 3 months post the nal laser treatment. Clinical photographs were evaluated from baseline to the final photo at 3 months post last laser treatment by the treating physician, patient, and an independent evaluator. All hand subjects and chest subjects showed improvement in all 3 areas which were found to be statistically signi cant. No adverse events occurred in either study group.

CONCLUSION

These study results show signi cant improvement in not only pigmentation, but in texture and rhytides in all subjects receiving pico-toning laser treatments to off of the face areas. The laser was well tolerated by all patients with no adverse effects. The use of a diffractive lens optic on a 6 mm xed spot size handpiece with a picopulsed alexandrite laser, in a pico-toning technique, provides a safe, low uence, yet effective treatment for not only pigment dyschromia but also textural irregularities and rhytides when treating the hands and décolletage. J Drugs Dermatol. 2016;15(11):1398-1401..