The following coatings and other treatments may be necessary or preferred to either improve higher prescription lens fit in a particular frame model or to improve the overall viewing experience.

Anti-Reflection Coatings | $75 AND UP

The application of anti-reflection coatings reduces light reflection from the lens surface. This application is generally included when mirrors are applied to reduce “bounce back” from the mirror surface. Opticus does not generally recommend anti-reflection coatings on other outdoor lenses as the reflections are minimal in frames with either side-shields or protective curves and anti-reflective coatings are not especially durable in extreme outdoor environments. Anti-reflection coatings are included with all mirror coatings at no additional cost.

Mirror coatings | $85 AND UP

Mirrors are not so much to increase density as they were years ago, when lenses were glass and the coating material was thicker. The main use for mirrors on plastic, is more to slow fading of the base color over the course of time, especially if lenses are used often and in extreme lighting. Other purposes are simply cosmetic. Modern mirrors on plastic lenses are nowhere near as durable as the older coatings on glass were. They are also more prone to showing scratches, as the base color becomes visible along the crease, enhancing the scratch. Do we sound a little negative about mirrors? Yes. If you look at the warranties placed on mirror coatings by most prescription sunglass manufacturers, you’ll see warranties ranging from none to 2 years and the 2 year warranties are at a higher initial cost. Our warranty is one year and we don’t represent that they’ll last longer, though they often do. Is there another way to get lenses that reach cat#4 density? Yes, consider our McKinley Photochromics and Tran-Sport Photochromics.

Anti-fog Coatings | $65

The application of a permanent (no refreshment necessary) anti-fog coating is automatically included on clear polycarbonate lenses being placed in prescription adaptors behind goggles. For tinted, mirrored or photochromic applications, only an anti-fog coating that requires an occasional refreshment treatment, is available.

After market “Daily Application” cloths and liquids are also available at a lower cost and may be preferred where exposure to extreme heat, cold, and high humidity (the most likely environments to cause fogging), are only occasional.

Routing, Chamfers, and Step-Bevels | $25

These are lens edge alterations employed through specifically designed machinery to create a space for back lips or side-shields to fit properly behind prescription lens edges. These alterations are absolutely essential for certain frames and prescriptions to fit successfully.

Polycarbonate/1.6 INDEX | $60 AND UP

Polycarbonate (20% thinner) and 1.6 (35% thinner) are higher index, thinner materials available in some lens filter types but not all. We are happy to discuss these materials with regard to your specific prescription and application.

Wrap compensation | AT NO COST WHEN NEEDED!

A wrap or curve compensation utilizes either prescription adjustments, prism induction, wrap relaxation, or digitally surfaced lenses to compensate for the effects of frame curvature as prescription powers increase.. They are most effective on prescriptions that fall within a moderate range. For even higher prescriptions, a flatter frame model (prescription friendly) is definitely recommended. Basic digital wrap compensation is now included in most single vision and progressive lenses at no additional cost!