Precision 8|4 design adds stabilization in two places. Think of the contact lens as a clock face reinforced at 8 o’clock and 4 o’clock to track your cornea and provide customized fit performance that reduces blurring to maximize comfort and effectiveness. Air Optix plus Hydraglyde for Astigmatism contact lenses are suitable for longer wear because a patented material retains moisture and resists protein deposits, so your lenses stay clean and clear throughout their use. Tinted for ease of handling, these Air Optix for Astigmatism contact lenses will not change your eye color. Each box of Air Optix for Astigmatism contacts contains six lenses in a buffered saline solution.