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Our experts are ready to answer all of your questions.Please email us at Rx@revo.com orCall us 866-678-7386 (9AM to 5PM EST)
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Size Guide: Small / Small-Medium fit
Cobra is back! The hit style from the 1990s returns fresh from the original molds with Cobra snake print temple details. The stainless steel frame and handmade acetate temple tips evoke the classic style while the integrated spring hinge keeps the frame comfortably in place. Cobra’s lenses are the polarized Crystal glass that put Revo on the map for unrivaled protection from glare and enhanced contrast.
Revo high-contrast polarized Crystal glass lenses
Featuring an innovative new process that encapsulates Revo NASA lens technology within two layers of glass
6-base lens technology
A flatter profile, temple to temple
Integrated spring hinge
Flexible temple for a comfortable, secure fit
Revo Light Management System™
Filters harmful UV, HEV, and Blue Light
Reduces glare and enhances clarity of digital screens
Similar style with oval shape: Python
YOU SELECTED THE PRESCRIPTION OPTION: NOW YOU CAN CUSTOM-BUILD YOUR SUNGLASSES
PLEASE SELECT FRAME COLOR, LENS TYPE AND LENS COLOR BELOW
Choice of lens material affects your lens color options – each lens material is available in specific colors
The genuine, NASA-tech based Revo sun lens is available in the following lens materials:
SERILIUMTM: lightweight and shatterproof polycarbonate Category 3 sunlens with premium glare reduction effect; available in Blue Water, Evergreen, Graphite, Terra, Drive, Champagne and Spectra color options
SERILIUM+TM: featherweight and impact resistant Category 3 sunlens produced in Trivex® material with superior optical features (Abbe number: 52); available in Blue Water, Evergreen, Graphite and Terra colors
... and if you wish to learn more about Revo’s differentiating Light Management SystemTM technology, that:
OPTIMIZES the full spectrum of light for superior vision
REDUCES Blue Light for better contrast and brightness
BLOCKS harmful bandwidths of light (including UV A, B and C)
Your lens type will depend on what type of correction you’d like. Single vision corrects one field of vision while progressive lenses correct multiple fields of vision without the need to switch between different pairs of glasses.
GLASSES WITH SINGLE VISION LENSES
Single vision lenses offer only one correction. They are most often used in general purpose glasses for everyday use, including driving, but you also find single vision lenses in reading glasses or 'readers' for those who need spectacles to see near object clearly. Single vision sunglasses are almost exclusively made for general use but you can order them as readers, too.
GLASSES WITH MULTIFOCAL LENSES
Multifocal lenses (in other names: Varifocal, PAL or progressive lenses) provide all-in-one solution to correct 'presbyopia'. Presbyopia is the common condition when your eyes, from about the age of 40, start needing “additional help” to focus on closer objects, like reading a book or looking at your phone screen. Multifocal lenses combine far (distance), intermediate (e.g. computer screen) and near (reading) corrections. All these corrections merge continuously into one another, providing sharp image at all distances.
Your prescription will contain an addition (ADD) value if you need multifocal lenses.
Your prescription may have less, or occasionally more information than the fields below. If you need help with filling your Rx details, just upload your prescription below and we’ll take care of the rest!
Your prescription contains all (or almost all) data that we need, and here comes a little help how to read it:
The first line is always the correction for the right eye and the second line is for the left eye.
Every prescription has at minimum a Spherical (SPH) power (but this can also be zero if your prescription has additional values). The 'power' of the prescribed correction is measured in Diopters in 0.25 steps. Your SPH value must have a + or – symbol in front of the number, depending if your eyes are primarily far-sighted or near-sighted. Pay special attention to enter this correctly, since +2.00 is exactly the opposite of -2.00 as the values suggest.
Your prescription may contain a Cylinder (CYL) value, also measured in + or - Diopters, depending if you have a condition called 'astigmatism'. If you do not have a CYL value your eyes are round like a basketball, however most eyes are shaped like a football therefore a CYL correction is needed to make your glasses perfect. If you have a CYL on your prescription, you will also find an Axis (AX) value next to it, that is the angle of the CYL, measured in degrees with values between 0 and 180.
Finally, you may find Addition (ADD) value on your prescription – you will only need this if you order multifocal lenses. Addition is also prescribed in Diopters in 0.25 steps and describes the difference between your distance and near vision correction. This data does not contain a + or – symbol since it is always a positive value.
Rare and complicated prescriptions may contain some other data – if you are unsure of their meaning, contact our expert team and they will be happy to help you.
Pupillary Distance (PD) is the last piece of information that we need to make your glasses. Sometimes your prescription has this number but often not.
PD is the distance between the centers (pupils) of your two eyes and it is measured in millimetres according to global standards. It is important to know that while your prescription may change over the years, the PD of an adult person does not change. If you have at hand the PD of any of your previous glasses, you should feel comfortable to add the same value.
The typical PD value is between 57 and 69 mm.
Some practitioners prefer to give Right PD and Left PD separately, each reflecting only the “half PD”, from the middle of the nose to the right or the left pupil, respectively.
If you have separate Right and Left PD, please enter those. Their individual value is likely between 29 and 35 mm.
If you cannot find your PD in any of your documents, you may give a call to your eye care practitioner and ask for it. If they made glasses for you at any point in time in the past, they will have it on file.
If you succeed with none of above, simply tick the box “I do not know my PD” and complete your order without it. In lack of exact PD many online suppliers produce glasses to the average PD of 63mm but we can do better: as soon as we receive your order, our expert team will contact you and will help you measure your PD in a very simple way.
Click here to confirm that your prescription is not older than 24 months.
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You must agree to the terms and conditions and confirm that your prescription is not older than 24 months in order to complete your purchase.
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