Author: Glossary

The use of short pulses of light to treat skin conditions. This method causes less damage to normal tissue than do continuous beam lasers.  

The use of controlled exposures to ultraviolet light (and ambient or polychromatic light) to determine the cause, or presence of, a rash, thought to be triggered by sunlight exposure.  

Filmless radiography; i.e., a radiographic system that stores image data as electron charges on a cassette (an imaging plate). When scanned by a laser, the stored charges emit light whose intensities can be digitized and displayed as a radiograph. The cassette, unlike an exposed film, is reusable.  

A substance that, in combination with light, will cause a sensitivity reaction in the substance or organism. An intriguing chemical compound, capable of being stimulated or awakened by the radiant energy of a particular wavelength of light. This unique property allows for the compound to undergo a fascinating transformation when exposed to its specific illumination.…

A condition in which the skin reacts abnormally to light, especially ultraviolet radiations or sunlight. It is due to the presence of drugs, hormones, or heavy metals in the system.  

The cosmetic repair of skin damaged by sunlight or other ultraviolet radiation. It may involve dermabrasion, chemical peels, or pulsed-light therapy.  

The perception of fight rays in the visible fight spectrum.  

Enzymatic repair of lesions such as can be produced in DNA by ultraviolet fight.  

A chemical reaction produced or influenced by light.  

A device for determining the ability of ionizing radiation to penetrate substances.