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
fluorescein (flôres´ēin),
fluo·res·ce·in (fl -r s  - n, flô-)n. An orange-red compound that exhibits intense fluorescence in alkaline solution and is used in ophthalmology to reveal corneal lesions. |
Fluorescein
A fluorescent chemical used to examine the cornea.
Mentioned in: Corneal Ulcers
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.
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.
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Fig. F7 Fluorescein on the corneal surface staining A, an abraded area, and B, some damaged epithelial cells
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