• Lens Index: This indicates the thickness of the lens. The higher the index number, the thinner the lens.
• Abbe value: The abbe value measures how widely the lens disperses different wavelengths. Ranging from 30 to 60, the higher the abbe value, the better the visual clarity.
• Roll & Polish: Smoothes lens edges and takes down back-edge sharpness in strong prescriptions making them appear thinner. All prescriptions above +6.00 and below -6.00 include this free of charge.

• Anti-Reflective: Reduces blinding glare, gives you sharper vision, and eliminates reflections on the lenses so people can see your eyes.
• Blue Light: A clear treatment that reduces eye strain by reflecting high-energy blue light indoors and outdoors.
• Transitions: Photochromic lenses change from clear to tinted as they are exposed to UV light.
• Sun Tint: Turn eyeglasses into UV protective sunglasses. Tint is 80% opaque for a true sunglasses look.

The Standard lens is a high quality, 1.49 index CR-39 plastic lens. These lenses come treated with a scratch-resistant coating and are recommended for prescriptions between +/- 3.00.

The Thin & Light lens is a 1.58 index, impact-resistant polycarbonate lens. These lightweight lenses are 22% thinner than our Standard lenses and come treated with a scratch-resistant coating as well as a UV-protective coating. The Thin & Light lens is recommended for kids and people with active lifestyles and those prescriptions that range between +/- 4.00.

The Ultra Thin & Light lens is a 1.67 index, ultra-thin lens. These lightweight lenses are 33% thinner than our Standard lenses and come treated with a scratch-resistant coating as well as a UV-protective coating. It provides optimal comfort and helps strong prescriptions—from -8.00 to +6.00—look their best.