Final answer:
Fluorescein staining is a technique using fluorescent dye to detect eye surface irregularities.
Explanation:
Fluorescein staining is the application of fluorescent dye to the surface of the eye via eye drops or a strip applicator, commonly used to highlight corneal abrasions or foreign bodies.
It helps in identifying any irregularities on the corneal surface by causing them to fluoresce under blue light, aiding in diagnosis.
This technique is crucial in ophthalmology for detecting eye conditions and injuries.
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