ROCHESTER, N.Y.--(BUSINESS WIRE)--The United States Food and Drug Administration (FDA) has cleared the use of the new Bausch & Lomb Boston® XO2 gas permeable contact lens material for daily wear in patients with ametropia and certain irregular corneal conditions. Lenses made with this new contact lens material allow 40 percent more oxygen to reach the eye than the original Boston XO® material, supporting corneal health and overall comfort.