Any contact lens wearer who suffers from astigmatism would be familiar with the frustration and hassle that comes with taking the contacts off each night. Well, now it does not have to be that way thanks to the innovative Purevision Toric contact lenses from Bausch and Lomb that give its wearer's the luxury to keep their contacts on for 30 nights consecutively - this has been cleared and authenticated by the Food and Drug Administration (FDA). By far these lenses are the most maintenance-free and hassle free out there on the market today.
These lenses have been carefully engineered and made out of a special material called AerGel which allows massive amounts of oxygen to the eye's cornea (Since the cornea gets its oxygen supply directly from the air, it is very important for contacts to allow the maximum amount of oxygen to get through to the cornea - a good contact lens is separated from an average one by its ability to do this). So, exactly how much oxygen do your eyes get when using these lenses? About five times more in comparison to other conventional contact lenses.
The other problem with lenses for extended wear is that of dirt and the accumulation of debris on the surface of the lens. But with AerGel this is not a problem anymore because the lenses are injected with an ionized gas that immensely increases its ability to retain moisture - this moisture then plays its part in cleaning away any dust or debris that forms on its surface. This results in an unhindered, crisp and clear vision throughout the day.
Now, as mentioned above, the purevision Toric lenses are also designed for people who suffer from astigmatism. But in order for the lens to do that, it's pivotal for the lenses to stay static and that is exactly what happens when you use the Purevision Toric lenses - thanks to the specially crafted rounded edges that keep the lens intact. It's worth mentioning that these rounded edges also serve the purpose of allowing your natural tears to get behind the lenses and assist in keeping up the lenses' moisture levels.
Purevision Toric lenses are ideal for daily wear and even though these lenses are a blessing in disguise for those who live a busy life or who suffer from astigmatism, it's very important to first get your optician's opinion on how long you can wear these lenses for.
Author Resource:-
Dominic Donaldson is a published writer. Find out more about purevision toric contact lenses and the services offered from Lenstore.co.uk.