Biotrue ONEday for presbyopia are daily multifocal contact lenses specially designed to provide clarity of vision for those suffering from presbyopia. Their latest 3-Zone design uses the natural properties of the eye when focusing close up, far away, and everywhere in between. This provides an effective solution for vision correction at all distances.Biotrue OneDay for Presbyopia are made of HyperGel material called Nesofilcon A which combines the properties of classical hydrogel and silicone hydrogel, i.e. high water content and a high oxygen permeability. The HyperGel technology operates on the principle of active ingredients contained in the upper layer of the lens material. These substances are involved in the creation of the lipid layer, which prevents dehydration of the lens. They then remain pleasantly moist and retain the excellent optical performance throughout their wear. The water content of Biotrue OneDay lenses is 78%, which is comparable to the percentage of water contained in the cornea. The UV filter in contact lenses increases the protection of the cornea from the dangerous ultraviolet radiation. However, lenses do not cover the entire eye or eye area, so the combination of contact lenses that have UV filter and sunglasses is the ideal protection against harmful UV rays.
