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The HELIX black cateye frame# VC017-1 is known for its gold helical shaped handles. A scientist would have the DNA helical shape in mind which comes as a strong structure. If you are one to be concerned about breaking your spectacle handles and not a fan of plastic or wooden ones, then this one will be your best choice. For those that like the "extra" look, the HELIX frame comes with an animal print design. Made with premium mixed material, it has two different frame shapes with one accommodating square face shapes and the other for longer rectangular face shapes. It also has a wider lens coverage making the frame to look thinner.There is a certain chromatic aberration in manual shooting of pictures.
Item
VC017-1
Frame Weight
25g
Gender
Women
Rx Range
-20.00 ~ +12.00
Rim
Full Rim
PD Range
54 ~ 78
Materials
Other Plastic
Progressive/Bofical
Yes
Shape
Cate-Eye
Temple Length
140
Customer Reviews
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PD (Pupillary Distance)
PD is the distance between your two pupils in millimeters. Having a correct PD on your glasses ensures that you are looking through the ideal spot in your lenses. If there is no PD on your prescription, you can check it with your doctor or measure it yourself.
SPH(Sphere)
Sphere(SPH) refers to the refractive correction in the prescription. Minus(-) values are for nearsightedness, and Plus(+) values are for farsightedness. If "PL" or "Plano" is written for the either SPH on your prescription, then you should select "0.00".
CYL(Cylinder) & Axis
Cylinder(CYL) refers to astigmatism. It can be either positive(+) or negative(-). Axis is recorded as an angle in degrees, between 0°and 180°. Therefore, if there is a CYL value on your prescription, then there must be an Axis for it.
If "DS" or "SPH" is noted for the either CYL on your prescription, it means you have no astigmatism.
ADD(Addition)
The number sometimes written as "NV" or "Reading Addition" refers to near vision and is used for multifocal lenses and readers.
Prism
Prism is power, measured in diopters, used to correct vision displacement, like double vision or an eye turn. Most eyeglass prescriptions do not have prism correction. A prescription with prism will have two values per eye: a Prism (power) and Base (direction).
Please confirm whether your prescription data matches. If it is correct, please click 'Confirm' to continue.
