TheraTearsTheraTears offers dry eye therapy eye drops that hydrate the ocular surface with OxyLytes, the five vital electrolytes found in natural tears. The products provide immediate, long-lasting relief for dry eye symptoms, with TheraTears EXTRA delivering up to 12 hours of hydration. Created by an ophthalmologist and recommended by doctors, the TheraTears line from Prestige Consumer Healthcare focuses on science-backed hydration for dry eyes.