Alcon Dailies Total 1 One Day Contact Lenses are made from a lens material that is 33% water and 67% (delefilcon A) polymer, a silicone containing hydrogel with added phosphatidylcholine. The core lens material containing 33% water transitions through a water gradient to a hydrogel surface layer that exceeds 80% water. Lenses contain the color additive copper phthalocyanine, a light blue tint, which makes them easier to see when handling. When hydrated and placed on the cornea, delefilcon A contact lenses act as a refracting medium to focus light rays on the retina. Alcon Dailies Total 1 One Day Contact Lenses are indicated for the optical correction of refractive ametropia (myopia and hyperopia) in phakic or aphakic persons with non-diseased eyes with up to approximately 1.50 diopters (D) of astigmatism that does not interfere with visual acuity. The Water Gradient Technology forms a gentle cushion of moisture with nearly 100% water at the surface of the lens. SmarTears Technology releases an ingredient found naturally in tears. Thus, nearly 9 out of 10 wearers agreed that Dailies Total 1 contact lenses are so comfortable they sometimes forget they are wearing them.