LITTLE KNOWN FACTS ABOUT REFRESH TEARS.

Probably the most typically used demulcents is carboxymethylcellulose (CMC), a cellulose by-product. CMC raises the viscosity of tears and has mucoadhesive Qualities that make it possible for it to remain on the ocular surface area for long periods of time.10 The commercially out there artificial tear concentration can range from 0.2% to 1%.9 The e