Novel Formulation of Glycerin 1% Artificial Tears Extends Tear Film Break-Up Time Compared with Systane Lubricant Eye Drops

This study demonstrates that PLL-g-PEG as a polymer excipient in artificial tears is effective in improving the performance of demulcents to significantly prolong NIBUT at 15 min, and that protective activity from this artificial tear product for 2 or more hours after eye drop instillation is possible.