Role of Fractional Erbium Yag Laser 2940nm in Treatment of Eye Wrinkles

Abstract

Background:The erbium yttrium aluminum garnet (Er: YAG) laser (Sciton, Palo Alto, CA) has been used as an alternative to the CO2 laser. Er:YAG laser-induced improvement in rhytids was comparable to that achieved with CO2 laser resurfacing, and that healing time, redness, swelling, and the incidence of late hypopigmentation were reduced but with reduced thermally induced collagen tightening after Er:YAG treatment compared to CO2 treatment. Since the 2940 nm absorption efficiency is so high, nearly all the 2940 nm energy is consumed during ablation, so minimal energy is left for a necrotic effect on the underlying tissue. The result is a larger zone of irreversible thermal necrosis (50-100 microns) underneath the ablated area.Fractional Er: YAG laser resurfacing showed significant effects on the epidermis and dermal collagen with a considerable improvement of skin texture and fine rhytids.