Gas Permeable Contact Lenses: Sharper, Harder to Start
Rigid gas permeable lenses give the sharpest vision available in a contact lens, and they make you earn it with one to three weeks of adaptation. That trade is the whole story: better optics and lower running costs, in exchange for a start that soft lenses do not ask for. How they work RGPs are…
Dr. Teresita Bollar, OD