Refresh Optive (30 PF vials) microwave This is a very comfortable

This is a very comfortable drop that lasts a decent time

Povidone tends to be thought of as rather 'old school' for a lubricant drop

here's where Systane Complete fits in to the artificial tear universe: It's considered a lipid drop

this is NOT the plunger you need

Oasis TEARS and Oasis TEARS PLUS Are Preservative Free

Refresh Optive (30 PF vials) microwave This is a very comfortableHighlights Active ingredients: Carboxymethylcellulose, glycerin Preservative free Box of 30 0. 01 fl oz 0. 4mL vials Rebecca's description When Optive first came out, it was Allergan's first drop using glycerin but in conjunction with carboxymethycellulose which is a common polymer for artificial tears. It's a nice balance of a drop not so watery feeling that you feel drier five minutes later, but not so goopy that you can't see clearly for ten