<unk>  <unk>  is a technology used by cosmetic and medical practitioners to perform various skin treatments for aesthetic and therapeutic purposes, including hair removal, photorejuvenation (e.g. the treatment of skin pigmentation, sun damage, and thread veins) as well as to alleviate dermatologic diseases such as acne.<unk>  is increasingly used in optometry and ophthalmology as well, to treat evaporative dry eye disease due to meibomian gland dysfunction. The technology uses a high-powered, hand-held, computer-controlled flashgun to deliver an<unk> , visible, broad-spectrum<unk> of light, generally in the visible spectral range of 400 to 1200 nm. Various cutoff filters are commonly used to selectively filter out shorter wavelengths, especially potentially damaging ultra violet light. The resulting light has a spectral range that targets specific structures and chromophores (e.g. melanin in hair, or oxyhemoglobin in blood vessels) that are heated to destruction and reabsorbed by the body.<unk>  shares some similarities with laser treatments, in that they both use light to heat and destroy their targets. But unlike lasers that use a single wavelength (color) of light which typically matches only one chromophore and hence only treats one condition,<unk>  uses a broad spectrum that when used with interchangeable filters, allowing it to be used against several conditions. This can be achieved when the<unk>  technician selects the appropriate filter that matches a specific chromophore.
Intense pulsed light
Depot injection
Topical anesthetic
GreenLight Laser Therapy
Laser
Erotic electrostimulation
Light therapy
Microstimulation