The Sportor Trivex Varia prescription lenses are part of the NXT photochromic range of highest quality and performance prescription sunglass lenses. Photochromic lenses lighten and darken automatically according to the outdoor light conditions. All these single vision (SV) Varia prescription (Rx) sunglass lens types include a multi-anti-reflective coating on the back surface of the lens.
The Varia Grey lenses when activated by sunlight turn from a medium grey to dark grey and are excellent general purpose lenses.
The Varia Brown turn from medium brown to dark brown and as well as general purpose use they are also ideal for outdoor pursuits such as skiing and snowboarding.
The Varia Copper turns from medium copper to dark grey when fully activated and is a high contrast lens ideal for cycling, golf and most other outdoor sports. It also reduces glare to increase comfort and ultimately performance.
The Varia Day-Night lens turns from a light amber to dark grey when activated making it an ideal lens for night driving or cycling in dull or changeable conditions.
The light transmission values (the amount of light which comes through the lens) of all these lenses varies from 40% to just 12% when activated.
NXT prescription photochromic lenses offer a winning combination of lightness, strength and 100% UV protection. NXT is a Trivex based lens material which has been formulated from the science and technology behind Apache helicopters used in the US Military. These lenses are suitable for prescriptions -8.00/+6.00 Sph with opposite Cyls to 4.00
This lens price does not include rimless glazing. If you would like these lenses glazed in a rimless frame, to purchase a rimless glazing supplement please click on the rimless glazing link below.
Once your purchase has been processed we will contact you for a copy of your current prescription and PD measurements. Please note you must be over 16 years of age to purchase Rx lenses from us.
If you have any questions concerning prescription sunglass lenses please
contact us. We will be delighted to help!
SSO Tip: Trivex material is 1.53 refractive index, polycarbonate 1.59. The higher the refractive index, the thinner the lens. Standard lens material refractive index is 1.50.
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