Purevision Toric Contact Lenses May Be For You If You Suffer From Astigmatism And Seek Extended Wear Lenses
If you want to push the limits of extended wear eye contacts for astigmatism, you may want to consider buying Purevision Toric lenses from Bausch and Lomb. Approved by the FDA for up to 30 days of continuous extended wear, they are among the longest lasting and lowest maintenance disposable lenses available. (If you prefer not to use contact lenses on a continuous basis, Purevision Toric lenses are also approved for up to 30 days of daily wear and removal.)
Careful design must go into the construction of any lenses that will stay in your eyes for such a long period of time, and Purevision Toric lenses excel in this regard. They use a silicone hydrogel matrix called AerGel, a super-permeable material that is specially designed to allow the natural flow of oxygen directly to your eye. Oxygen permeability helps to ensure opthalmic health. AerGel allows up to five times more oxygen to the cornea than conventional contact lens materials, making it practically the same as not wearing contact lenses at all.
It is also necessary that continuous wear lenses remain clean and debris-free. Purevision Toric contact lenses achieve this through a surface process Bausch and Lomb calls Performa, which injects the AerGel polymer with ionized gases that maximizes its ability to absorb moisture. The enhanced moisture level of the lens helps to remove debris and dirt before they can accumulate on the lens and reduce your ability to see clearly. The Performa process also helps avoid lipid and protein build-up on the lens, both of which can cause scratchy eyes and discomfort. This can all be done without affecting the oxygen permeability of the lens.
The combination of the Performa process and AerGel works terrifically to continuously maintain the eye’s natural moisture level for as long as the lenses are worn. Continual moisture leads to a trouble-free, comfortable experience with your eye contacts.
Patients with astigmatism suffer from their eyes having an odd shape, which then refract light in many different directions instead of focusing it correctly on the retina. Toric lenses compensate for astigmatism by re-focusing light rays to provide clear vision, but in order to do so they must maintain a stable position on the eye. Purevision Toric lenses do this very well, using a carefully crafted contour with rounded edges that allows for maximum stability on the eyeball. The net result is crystal-clear eyesight for anyone suffering from the fuzziness you are accustomed to with astigmatism. The rounded edges also allow tears to flow freely beneath the lenses, which also improves the removal of debris and keeps them moist.
If you are considering Purevision Toric for extended wear, you should check with your medical provider to ensure your eyes can handle that, even if you are already using these lenses for daily wear. Every person’s opthalmic needs are different, and not everyone can safely tolerate continuous extended wear. Only your doctor can tell you for sure.
Whether you use Purevision Toric lenses for daily wear/monthly disposal or for 30-day extended wear between removals, their low maintenance requirements make them a great choice for just about anyone who wants a minimum of fuss with their contact lenses. They guarantee clear, crisp vision from any angle for as long as you wear your lenses. Try them out and see for yourself!
David Long is an expert who writes about toric contact lenses. Visit his site to find the best prices for Purevision Toric and many other toric lenses.
No comments yet.