Author: Glossary

A device for determining the smallest amount of fight that will make an object visible.    

The protein portion (opsin) of the photopigments in the cones of the retina.  

Adjustment of the eye for vision in bright fight; the opposite of scotopia.  

A technique used in treating cutaneous T-cell lymphoma. It incorporates exposure of a lymphocyte-enriched blood fraction, obtained by use of apheresis to ultraviolet A fight after the patient has ingested the cytotoxic agent 8-methoxypsoralen.  

A test used to identify allergic reactions triggered by ultraviolet (UV) light (specifically, to UVA).  

Separation of the nail from the distal nailbed in conjunction with sun exposure and simultaneous use of drugs such as antibiotics.  

In radiography, an electronic vacuum tube designed to convert light photons into electrical pulses. It is used to digitize incoming light photons prior to the creation of computerized images in nuclear medicine and other imaging modalities. An electron tube is employed to amplify the radiographic image of faint intensity that is visible on a fluorescent…

A device for measuring the intensity of light.  

The use of light to treat certain conditions.  

Dissolution or disintegration under stimulus of light rays.