Evolution of Technology

Laser Skin Resurfacing

Laser resurfacing is a technique used to reduce acne scarring by “selective phototheromolysis.” This concept employs the use of specific energy fluence, wavelengths, and laser time, in order to reach specific dermal and epidermal layers. Two different types of popular ablative lasers are the C02 (10,600 nm wavelength) and Er:YAG (2940 nm wavelength) lasers. These lasers penetrate deeper than superficial skin resurfacing lasers such as Pulsed Dye Lasers, which are commonly used for skin discoloration and other superficial blemishes.

Evolution of Procedure

Acne Scar Reduction

Once acne vulgaris is adequately controlled medically and new lesions are no longer developing, attention can be turned to addressing the cosmetic affects of atrophic scarring. Multimodality treatment is typically most often employed to reduce the appearance of acne scarring. Typical treatment options include primary scar excision, laser therapy, chemical peels, microneedling, dermaroller treatment, dermabrasion, and temporary/permanent filler injections.

Evolution of Diagnosis

Acne Scarring

Acne vulgaris is a disease that is common in adolescent populations, with severe lesions frequently causing cosmetically unappealing scars on the face. The pathogenesis of scar formation from acne is thought to be from an altered healing response to the inflammation caused in the skin, which can negatively affect collagen’s ability to regenerate. Acne scarring most commonly results in atrophic scarring, to include boxcar, ice pick, and rolling scars. Scars, in addition to causing a surface defect, may also be hyper or hypopigmented.