1976). The term "photoaging" was first coined in 1986 and describes the effects of chronic ultraviolet (UV) light exposure on skin (Kligman & Kligman, 1986). Clinical signs of photoaging include ...
There are microscopic differences in the two aging processes as well. In chronologically aged skin, the epidermis is atrophic, with flattening of the dermal-epidermal junction and loss of rete ...