Those with irregular eye curvature may benefit from lenses correcting for astigmatism. Air Optix for Astigmatism can meet your need, accommodating sphere powers from +6.50D to -10.00D. Air Optix for Astigmatism is a toric lens. To accommodate eye irregularity, a toric lens uses two prescriptions while also being tighter fitting to avoid shifting. Just because you have an astigmatism does not mean sacrificing lens comfort and convenience. Alcon integrates their proprietary Smartshield lens design into all Air Optix models. Smartshield Technology – A contact lens’ surface can interfere with lipids essential to eye health keep. With Smartshield, an ultra-thin protective layer prevents any detrimental interaction. This proprietary plasma surface design enhances lens duration without rubbing the eye or starving it of oxygen. As an added bonus, Smartshield prevents uncomfortable deposits and buildups around the lens. Air Optix for Astigmatism is a monthly wear lens with an extended wear option. More cost effective than daily wear contacts, the above-mentioned technologies allow the lens to last an entire month, assuming proper care, without loss of safety or comfort. If recommended by your doctor, Air Optix for Astigmatism allows for up to six nights of extended wear. This means wearing your lenses through the night and only dealing with the hassle of removal once a week. Air Optix for Astigmatism has an average retail price around $57, but at Simple Contacts we can do better. Not only does Simple Contacts offer competitive prices on all its lenses, but new customers can get a 20% discount. No hassle of mail-in rebates. Shipping is easy and free.