Friday, May 22, 2009

It Is Safe To Wear Extended Contact Lens?

Since they do not require daily cleaning or rinsing, extended wear contacts are often desired for the added convenience that they can provide the wearer. These lenses also offer those with vision correction needs a non-surgical alternative to LASIK surgery.

Contact lenses were initially FDA approved for continuous overnight wear for up to two weeks in the 1980s. However, the approval was modified to 7 continuous days after an increase in eye infections amongst those who wore contacts overnight was noticed.

The extended wear lenses that are available today are made from a new material, silicone hydrogel, which allows more oxygen to reach the wearer's eyes when the contacts are worn. When silicone hydrogel lenses are worn approximately 6 to 7 times more oxygen reaches the lens wearer's eyes, which helps to maintain good eye health.

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