Thealoz Duo Dry Eye Drops (10ml). Thealoz Duo Dry Eye drops are suitable for all Dry Eye sufferers, as they combine both long-lasting relief and protection for the surface of the eye.. • 100% Preser­v­a­tive-free. • Clin­i­cal­ly proven to increase the thick­ness of the tear film which relieves symp­toms of Dry Eye. • 0.15% Hyaluron­ic acid – this acts as a tear lubri­cant, pro­vides long-last­ing relief and soothes your symptoms. • 3% Tre­halose is added to pro­vide pro­tec­tion for the sur­face of the eye. • Suit­able for all Dry Eye suf­fer­ers, includ­ing con­tact lens wearers. • Unique bottle, the ABAK bottle for easy application. • The 10ml bot­tle has 300 drops and can be used for up to 3 months after opening. • Also avail­able in a 30-unit dose pack for more occa­sion­al use or for travelling. IDEAL FOR:. • All Dry Eye sufferers. • Peo­ple who have tried oth­er eye drops, but not found sat­is­fac­tion or comfort. • All Symp­toms – From mild-to-severe. • Con­tact lens wear­ers – for improved comfort