Gel Tears Ophthalmic Gel for Dry EyesGel Tears Ophthalmic Gel is a substitute for natural tears for those who suffer from dry eyes, specially formulated for those who do not produce enough tears of their own. Dosage One drop 3-4 times daily or as directed by your doctor. Active Substance 0.2% w/w Carbomer Excipients 0.01% w/w benzalkonium chloride (as preservative), sorbitol (Ph. Eur. 0435), sodium hydroxide and water.