Air Optix Night & Day Aqua are monthly disposable contact lenses manufactured by Ciba Vision. Air Optix Night & Day Aqua contact lenses have unique molecular structure has two distinct pathways that allow water (ions) and oxygen to pass through the lens. The lens can move freely on the eye and still has the highest oxygen transmissibility of any soft contact lens. Red eyes can be a sign that the eyes are not receiving enough oxygen. Insufficient oxygen may also compromise normal eye function and causes uncomfortable lens wear. Patients typically notice whiter eyes with Focus Night & Day, which are made of a highly oxygen-transmissible material. With Air Optix Night & Day Aqua contact lenses higher levels of oxygen reach the eye, even during sleep.