ABSTRACT
Purpose: Investigating the effect of different face masks on dry eye disease (DED) among healthcare workers during the COVID?19 pandemic. Methods: This was a comparative, cross?sectional study. Participants were included into two groups: group 1 (n = 30) wore surgical masks, and group 2 (n = 30) wore N95 masks with face shields. Demographic and ocular surface disease index questionnaires (OSDI) were performed. In addition, Tear break?up time (TBUT), corneal and conjunctival fluorescein staining, and meibography to assess meibomian gland loss (MGL) were performed on all participants. Independent T?test was used to compare continuous parameters and Chi?square test for categorical variables. The relationship between continuous variables was tested using bivariate Pearson correlation. Results: Sixty healthcare workers participated in this study (36 females and 24 males). The mean (±SD) age of the surgical mask and N95 groups was 35.33 (±14.94) and 36.63 (±10.64) years, respectively. Both masks caused dryness according to TBUT, MGL, and OSDI scores. DED per DEWS II definition was observed in 14 (46.7%) and 16 (53.3%) patients in groups 1 and 2, respectively. Comparing the two groups, N95 mask caused significantly more dryness according to TBUT (P = 0.042) and fluorescein staining (P = 0.038 for the right eye and P = 0.015 for the left eye). Conclusion: Physicians should be aware of the potential dry eye signs secondary to face mask wear during the COVID?19 pandemic. Further attention should be taken in patients who suffer from preexisting dry eye syndrome and in patients who undergo intraocular operations