Fluorescein angiography
Fluorescein angiography: A test to examine blood vessels in the retina, choroid, and iris of the eye. A special dye is injected into a vein in the arm and pictures are taken as the dye passes through the blood vessels in the eye.
The dye is injected into a vein in the arm. The pictures taken as the dye passes through the blood vessels in the eye can help detect a number of problems.
If the eye care professional suspects a patient has a disorder such as wet age-related macular degeneration (wet AMD), the patient may have fluorescein angiography. The resultant photos help evaluate leaking blood vessels and determine whether they can be treated.
Read Also:
- Fluorescent in situ hybridization
Fluorescence in situ hybridization: An important molecular cytogenetic method for identifying chromosomes and parts of chromosomes, deciphering chromosome rearrangements, and locating genes on chromosomes. “Fluorescence” means emitting light that comes from a reaction within the emitter. “In situ” refers to the fact that this techniques is done with the chromosomes, cells or tissue in place […]
- Fluorescent microscope
Fluorescent microscope: A microscope equipped to examine material that fluoresces under ultraviolet light. Fluorescence microscopy is based on the principle that fluorescent materials emit visible light when they are irradiated with ultraviolet rays or with violet-blue visible rays.
- Fluorescent treponemal antibody absorbed test
Fluorescent treponemal antibody absorbed test: A blood serum screening test for syphilis designed to demonstrate the presence or absence of specific antibodies directed against the organism (Treponema pallidum) responsible for syphilis. The fluorescent treponemal antibody absorbed (FTA-ABS) test detects the majority but not all cases of the disease. It is thus a way of screening […]
- Fluoridation
Fluoridation: 1. In general, treatment with fluoride. 2. Specifically, the addition of fluoride to a water supply to help prevent dental caries. For more information, see: Water fluoridation.
- Fluoride
Fluoride: A compound of fluorine with another element or radical. Fluoride containing compounds are used topical and systemic in the prevention of tooth decay. Fluoride ions replace hydroxyl ions in hydroxyapatite in teeth, forming fluorapatite, which leads to fewer cavities. Fluoride compounds are therefore added to some toothpastes and dentists may also give a yearly […]