Osmodrops Eye Drops 10 ml is a combination of two medicines: Carboxymethylcellulose and Glycerin. Carboxymethylcellulose works by increasing tear viscosity in the eye. Glycerin is an ophthalmic demulcent (forms a soothing film) that works by lubricating the eye's mucous membrane surfaces. In this way, it provides temporary relief from burning and discomfort.