"Boston 2 contact lenses are rigid gas permeable corrective lenses designed for daily use. Boston II contact lenses are custom made to fit your eye specifications which may require back, front, and bi-toric designs for which conventional contact lenses may be inadequate. Manufactured by Bausch & Lomb, they are suitable for most fitting situations due to the range of parameters available. There is 1 Boston II lens per vial.
All RGP lenses are a final sale. No refunds or exchanges. "