The most normally utilised demulcents is carboxymethylcellulose (CMC), a cellulose by-product. CMC increases the viscosity of tears and it has mucoadhesive properties that permit it to stay around the ocular surface area for extensive amounts of time.ten The commercially offered synthetic tear concentration can vary from 0.two% to 1%.9 https://wendellx097frb9.blogrenanda.com/profile