A harmless orange dye used in ophthalmology as an aid to the diagnosis of certain eye disorders.
A dye which has the special property of absorbing blue-light energy and emitting this energy as green light. This property is made use of in examining the cornea for scratches or ulceration; it is also used to detect abnormally permeable (or leaking) blood vessels in the retina and iris – especially in diabetic retinopathy and diseases of the macula (see EYE; EYE, DISORDERS OF).
a water-soluble orange dye that glows with a brilliant green colour when blue light is shone on it. A dilute solution is used to detect defects in the surface of the cornea, since it stains areas where the *epithelium is not intact. In retinal *angiography it is injected into a vein and its circulation through the blood vessels of the retina is viewed and photographed by a special camera.... fluorescein sodium
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