Air Optix Night and Day Aqua feature one of the highest levels of oxygen permeability on the market. They are monthly lenses and can be worn for up to 30 days continuously without removal.
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Air Optix Night and Day Aqua contact lenses by Alcon are designed to be worn for one month. According to the manufacturer, Alcon, these contact lenses can be used for daily wear (insert them in the morning and remove them in the evening), but they are also designed for continuous wear. For some users, the lenses can be worn without removing for up to 30 days and 29 nights. Air Optix Night and Day Aqua contact lenses are exceptional for their high oxygen permeability, which supplies the cornea with a sufficient supply of oxygen, even when the eye is closed while sleeping. This package contains 6 lenses.
However, according to the manufacturer, the lenses should not be worn continuously unless consulted and directed by an eye-care professional. Continuous wear is not suitable for everyone. Furthermore, it should be noted that even among eye care professionals the attitudes towards continuous contact lens wear vary considerably. Many eye care professionals do not recommend the continuous wear at all; others recommend to take contact lenses out after five days, etc..
Air Optix Night and Day are undoubtedly among the highest quality contact lenses available on the market. Nevertheless, it is highly inadvisable to buy these contact lenses without professional fitting. Without a professional fitting, you risk wasting your money and experiencing discomfort because the lenses have a very small diameter (DIA = 13.8 mm) which fits a considerably smaller percentage of wearers than the more common diameters 14.0 or 14.2.