KEY TAKEAWAY: Think about the blink when considering a potential diagnosis of MGD. A poor blink can be caused by long hours spent on digital devices, trigeminal issues, cosmetic surgery, lid laxity, partial blinking, or incomplete lid closure.
1. Patel S, Henderson R, Bradley L, et al. Effect of visual display unit use on blink rate and tear stability. Optom Vis Sci. 1991 Nov;68(11):888-92.