Red lenses block 100% of blue light but are too dark for outdoor use and not suitable for extended wear. They are intended for use only before sleep to help improve sleep quality.
Orange lenses block 99% of blue light, are category 3, and are suitable for long-term wear.
Yellow lenses are good for driving.
Transparent lenses allow you to see the true colors of the world, but their blue light blocking rate is lower than that of other lenses.
Only transparent lenses can be made with prescription degrees. Transparent lenses can be used for single vision reading glasses, single vision myopia glasses, multifocal progressive reading glasses, and bifocal reading glasses. If you have myopia or a reading prescription, you can order transparent lenses with no cylinder (no cyl).
"Transparent no cyl" means there is no astigmatism prescription. If you choose this option, please send me your prescription data after placing the order. If you have astigmatism, please send me your data first, and I will check it for you and advise you on how to order. The handling time for transparent lenses with a cylinder is about 10 working days.
Dimensions: Please see pictures.
NOTICE: if your eyes had astigmatism or higher degree, please order "customized listing" and leave your prescription to us.Please kindly note that, the handling time for customized glasses needs about 15 working days.
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