Eyevote: Eyevote-Contact Lenses Bausch + Lomb's Boston Named for Gas Permeable Material Brand By Staff Wednesday, December 6, 2023 12:46 AM Bausch + Lomb’s Boston gas permeable (GP) contact lens materials can be made into a wide range of special designs for demanding visual needs. Eye conditions well suited for GP lenses include: astigmatism, hyperopia, presbyopia, irregular cornea, myopia and keratoconus. Boston lenses include these brands: Boston Equalens II, Boston XO, Boston XO2, Boston EO and Boston ES. www.bausch.com