Pores are the circular surface openings of sweat gland ducts. Due to shadowing, pores appear darker than the surrounding skin.
Wrinkles are furrows, folds or creases in the skin, which increase in occurrence as a result of sun exposure, and are associated with decreasing skin elasticity.
Texture is primarily an analysis of skin smoothness. Visia® measures skin texture by identifying peaks and valleys on the skin surface that indicate variations in the surface contour.
Porphyrins are bacterial excretions that can become lodged in pores and lead to acne. Porphyrins fluoresce in UV light and exhibit circular white spot characteristics.
UV spots occur when melanin coagulates below the skin surface as a result of sun damage. UV spots are generally invisible under normal lighting conditions. The selective absorption of the UV light by the epidermal melanin enhances its display and detection by Visia®.
Red Areas represent a potential variety of conditions, such as acne, inflammation, Rosacea or spider veins. Blood vessels and hemoglobin contained in the papillary dermis, a sub-layer of skin, give these structures their red color, which is detected by Visia®. Acne spots and inflammation vary in size but are generally round in shape. Rosacea is usually larger and diffuse compared to acne, and spider veins usually are short, thin and can be interconnected in a dense network.
Brown Spots are lesions on the skin such as hyper-pigmentation, freckles, lentigines, and melasma. Brown Spots occur from an excess of Melanin. Melanin is produced by melanocytes in the bottom layer of the epidermis. Brown Spots produce an uneven appearance to the skin, and are detected by Visia®.