The clear1-day (hioxifilcon A) Daily Disposable Soft Contact Lens is available as a single vision spherical lens. The hydrophilic nature of this material allows the lens to become soft and pliable when immersed in an aqueous solution. The non-ionic lens material, (hioxifilcon A) is a ultra high molecular weight random copolymer of 2-hydroxyethyl methacrylate (2-HEMA) and 2,3-Dihydroxpropyl Methacrylate (Glycerol Methacrylate, GMA) cross-linked with ethylene glycol dimethacrylate. It consists of 42% hioxifilcon A and 58% water by weight when immersed in a buffered saline solution. The lens is available with a pale blue visibility- handling tint, color additive 'Reactive Blue # 4', 21 CFR part 73.3121. The United States Adopted Names Council (USAN) has adopted the (hioxifilcon A) name. In the hydrated state, the lens conforms to the curvature of the eye covering the cornea and extending slightly beyond the limbus forming a colorless, transparent optical surface. The hydrophilic properties of the lens require that it be maintained in a fully hydrated state in a solution compatible with the eye. If the lens dries out, it will become hard and appear somewhat warped however, it will return to its proper configuration when completely rehydrated in the proper storage solution.
A soft ophthalmic lens intended to be worn directly against the cornea and adjacent limbal and scleral areas of the eye to correct refractive vision conditions (e.g., myopia, hyperopia, astigmatism, presbyopia); it is designed to be discarded each day after removal. The device may be coloured/tinted for easier handling or to change the appearance of the eye for cosmetic purposes; it may include an ultraviolet blocker. The device is made of various synthetic polymer materials, the main polymer molecules being hydrophilic (e.g., hydrogel); it permits diffusion of oxygen (O2) to the ocular surface. This is a single-use device.