The Vivity lens uses proprietary non-diffractive technology known as X-Wave. X-Wave technology provides patients with high-quality distance vision, excellent intermediate vision, and functional up-close vision. The Vivity IOL is the first and only non-diffractive EDOF IOL. Thanks to the X-Wave technology, the Vivity lens can stretch and shift light without splitting it. For patients, this means an extended focal range that uses all available light. It also protects against damage from UV rays and even filters blue light emitted from digital devices. If you have astigmatism, the Vivity IOL also comes in a toric model to correct astigmatism during cataract surgery.