Contact lenses.: Several extended wear lenses are FDA-approved for up to seven days of continuous wear, and at least two brands of silicone hydrogel EW lenses — Air Optix Night & Day (Alcon) and PureVision (Bausch + Lomb) — are approved for up to 30 days of continuous wear.During your contact lens fitting and follow-up, your optometrist or ophthalmologist will advise you whether you can wear EW contacts overnight and how many days of continuous wear your eyes can tolerate.
Answered 4/13/2021
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