Abstract: A laser is used to both remove fat and alter the collagen in the skin under the eye. Precisely controlling the heat rise in the dermis is critical to not only the fat removal and alteration of the collagen but also to prevent damage to surrounding tissue. The denatured collagen results in tightening of the skin, further enhancing the benefits of the procedure. The fat is removed by melting or vaporizing the fat deposits, depending on the laser strength. The method is minimally invasive with a short recovery time.