fluorescein


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Related to fluorescein: fluorescein isothiocyanate, Fluorescein sodium

fluorescein

 [floo͡-res´ēn]
a fluorescing dye; the sodium salt is used as a contrast medium in retinal angiography and as a diagnostic aid for revealing corneal lesions and fitting contact lenses.

fluor·es·ce·in

(flōr-es'ē-in), [C.I. 45350]
An orange-red crystalline powder that yields a bright green fluorescence in solution and is reduced to fluorescin; a nontoxic, water-soluble indicator used diagnostically to trace water flow.

fluorescein

/flu·o·res·ce·in/ (fldbobr-res´ēn) a fluorescing dye; its sodium salt is used as a tracer in retinal angiography and as a diagnostic aid for revealing corneal trauma and fitting contact lenses.

fluorescein

(flo͝o-rĕs′ē-ĭn, flô-, flō-)
n.
An orange-red compound, C20H12O5, that exhibits intense fluorescence in alkaline solution and is used in medicine for diagnostic purposes, in oceanography as a tracer, and as a textile dye.

fluor·es·ce·in

(flōr-es'ē-in)
[C.I. 45350] An orange-red crystalline powder that yields a bright green fluorescence in solution, and is reduced to fluorescin; a nontoxic, water-soluble indicator used diagnostically to trace water flow and to visualize corneal abrasions or ulcers.

fluorescein

A green dye that fluoresces bright yellow in blue or ultraviolet light. It is used to tag (label) and thus show up ANTIBODIES in tissues. It is also much used by eye specialists (ophthalmologists) to show up ulcers on the cornea and to delineate for photography the blood vessels of the retina. For the latter purpose, the due is injected rapidly into the bloodstream (fluorescein angiography). The drug is on the WHO official list. Brand names are fluorescein, Minims fluorescein, Minims lignocaine (lidocaine, a local anaesthetic) and fluorescein, and Minims proxymetacaine (a local anaesthetic) and fluorescein.

Fluorescein

A brand name for FLUORESCEIN.

Fluorescein

A fluorescent chemical used to examine the cornea.
Mentioned in: Corneal Ulcers

fluorescein

A fluorescent, weak dibasic acid with a molecular weight of 376 whose sodium salt is used in dilute solution as a dye in the fitting of contact lenses, in the detection of corneal abrasions, etc. It is a yellowish-red compound, which fluoresces a brilliant yellow-green under ultraviolet or blue illumination (Fig. F7). Syn. sodium fluorescein. See fluorexon; Burton lamp; Wood's light; rose bengal; staining; break-up time test; fluorescein test.
Fig. F7 Fluorescein on the corneal surface staining A, an abraded area, and B, some damaged epithelial cellsenlarge picture
Fig. F7 Fluorescein on the corneal surface staining A, an abraded area, and B, some damaged epithelial cells

fluor·es·ce·in

(flōr-es'ē-in)
Nontoxic, water-soluble indicator used diagnostically to trace water flow and visualize corneal abrasions.

fluorescein (flôres´ēin),

n in dentistry, a dye applied to teeth to reveal plaque. In ophthalmology, it is used to discover corneal lesions.

fluorescein

a fluorescing dye, an acid fluorochrome; the sodium salt is used in solution to reveal corneal lesions and as a test of circulation in the retina and extremities. The isothiocyanate derivative (FITC) is used for labeling of immunoglobulins in various immunofluorescence techniques.

fluorescein strips
sterilized applicators impregnated with fluorescein for use in ophthalmic tests.
References in periodicals archive ?
Since we assume that fluorescein in both environments has the same molecular absorptivity, the equality of fluorescence radiance is equivalent to equality of fluorescence yields.
5) The blue filter allows only light of wavelengths close to the excitatory spectrum of fluorescein to reach the eye.
m] multiplexing, but other dyes that change fluorescence with hybridization could be used with fluorescein to provide color multiplexing and increase the power of the method.
In preparation for a fluorescein particle SRM[TM], we are conducting research to characterize the differences between the fluorophore in solution and bound to a surface, e.
Fundal fluorescein angiography (FA) performed in 4 severe cases demonstrated extensive fluid leakage from retinal vessels corresponding to clinical observation of macular edema (Figure 3B) and peripheral vasculitis.
OT clinical editor Ian Beasley, who works in independent practice, commented: "As a practitioner, I welcome the recent statement from the clinical consensus panel which reduces the ambiguity for those intending to use CE marked fluorescein.
For homozygous T individuals, the FP values for fluorescein were low and the values for TAMRA were high, reflecting substantial cleavage of the fluorescein signal probe but minimal cleavage of the TAMRA signal probe; these data points occupy the top left corner of the plot.
The new product is built on the company's successful Heidelberg Retina Angiograph (HRA) platform, the first commercial angiography system to use lasers in combination with marker dyes such as sodium fluorescein and indocyanine green (ICG).
01] What does the fluorescein pattern suggest about the fit of the spherical lens shown in Image A?
The anchor probe, 5'-CCA000TCCCGGCTAACTCCTCC3', was labeled with fluorescein at the 3' end.
the possibility of angiography with fluorescein (Product) injection of contrast, color retinographies , autofluorescence of (cliches without product application) .