Anterior / Ocular Surface Disease; Diagnostics and Imaging / Cornea

Tear Film Breakup Test and Grading Staining

Topically instilled fluorescein is used to assess tear film tear film stability and ocular surface damage. Other dyes, like lissamine green are used to assess damage alone. This video describes the standard tear film break up time test (TFBUT) and staining patterns under various dyes. TearFilm.org