Sun Valley, Idaho, USA

To meet the needs of their customers who require corrective lenses, ESS has launched a new prescription insert accessory for their popular CDI sunglasses.  This new insert allows for the rapid interchange of multiple lens types - clear and tinted, or prescription and non-prescription - all in one sunglass frame.

The CDI sunglasses include two sets of interchangeable lenses, which can be swapped out by sliding the lenses in and out of the frame.  Now, ESS is introducing the CDI Prescription Insert system, which consists of a pair of lens carriers that slide in and out of the frame just like the standard CDI lenses.  The lens carriers can be fitted with prescription lenses by any optometrist, and then inserted in the CDI frame. 

This system is ideal for those who want to have clear and tinted prescription lenses, or those who occasionally wear contact lenses and want their sunglasses to be able to accommodate either standard lenses or prescription lenses. 

Important safety note for sunglass users operating in proximity to fragmentation hazards:
ESS strongly recommends that optometrists use only high-impact polycarbonate prescription lenses to optimize impact resistance in the CDI sunglass.  With the standard, non-prescription polycarbonate CDI lenses installed, the sunglass meets all the requirements of ANSI Z87.1 and the MIL Specification MIL-PRF-31013.  Due to the variability of prescription lens shapes, materials, and thicknesses, it is impracticable to determine if the sunglass system is compliant with those impact standards when a prescription lens is installed.  High-impact polycarbonate prescription lens material will maximize the impact resistance of the system well beyond that offered by CR-39 resin or other common materials used in prescription lens manufacturing.

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