HOW MUCH YOU NEED TO EXPECT YOU'LL PAY FOR A GOOD REFRESH TEARS

The physiologic pH of tears is well recognized, but the impression of DED on tear pH is fewer apparent, suggests Meaghan Horton, OD, who practices in Cincinnati. “Tear pH is not really a diagnostic criterion for DED and is not routinely measured in clinic,” she describes.Every time we blink, a protective coating of tears is unfold similar to a