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Silicone hydrogel toric soft contact lenses
In 2002, Bausch & Lomb was the first company to introduce a silicone hydrogel soft toric contact lens, PureVision Toric, made from balafilcon A. This material has demonstrated excellent safety and physiological performance.5 It is approved for daily and flexi wear and up to 30 days of continuous wear. Now, there is a choice of toric contact lenses that are available with high oxygen permeable materials, such as Air Optix for Astigmatism, Biofinity Toric, Acuvue Advance for Astigmatism and Acuvue Oasys for Astigmatism, all of which are approved for daily wear but no more than seven days of continuous wear.
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