Filamentary keratitis, mucus clumping, and tear debris
Filamentary keratitis, mucus clumping, and tear debris, and ulceration
Schirmer score (mm/5 min)
*Must have signs and symptoms; TBUT: fluorescein tear breakup time; reprinted with permission from Behrens A, Doyle JJ, Stern L et al. Dysfunctional tear syndrome. A Delphi approach to treatment recommendations (Cornea 2006; 25: 90–7).