COTIA Round Bifocal Reading Glasses Women Men Transitional Photochromic Vintage Small Punk Eyewear (pink, 2.0)

Description

• Bifocal Reading Glasses - These lenses accommodate for both near and far vision by adding a unique lower lens with ADD vision value for reading and near vision.
• Classic Retro Small Frame Round Photochromic Design - The magical photochromic lenses are based on the intensity of sunlight and ultraviolet lights, darkening the light gray lens. What's more, these glasses can protect eyes without interfering with your perception of colour. Plus its classic retro design, always satisfy your daily dressing demand.
• Protective Lens - These sunglasses are superior to the previous type of sunglasses in three ways - when moving indoors or outdoors, the lenses adjust to the reduced light conditions automatically. And secondly, the lenses reduce flare and glare. Meanwhile, 100% UV protection layers against harmful UVA/UVB Rays.
• Usage Occasions - Photochromic classic sunglasses can do a good job of stopping the dazzling effects of sunlight when you are driving, running, fishing, biking or reading outdoor activities. Keep your safety always by your side.
• Warranty: you have no risk to try and we will provide you the best service! We stick to pay attention to product quality, if there's any quality problems please feel free to contact us.

Description

1. What are photochromic lenses?

Photochromic lenses are also referred to as light-sensitive lenses". Glass lenses are adding silver halide, but now is the mainstream of photochromic resin lenses, adding of spiro and other chemicals in the acrylic resin lens, so that the original colorless and transparent lenses.

in bright light, will become colored lenses, to do the protection, so is suitable for indoor and outdoor use.

Photochromic lens optical glass containing silver halide microcrystals, phototropy reversible reaction according to the principle, in the sunlight and UV irradiation variable dark, completely absorb ultraviolet and visible light absorption of neutral; back to the dark, can restore the colorless transparent. Photochromic lenses are mainly used in open-air fields, snow fields and indoor light sources, so as to prevent sunlight and ultraviolet light from damaging the eyes.

Round reading glasses is a perfect bifocal glasses for women. The reading lens contain two ares which are reading area and distance area. The reading part help to magnify tiny words so that the wearers can read more easy. The distance area help wearer see things from long distance.

2. Test discoloration?

it is recommended to test at noon, noon sun UV strong, discoloration can achieve the best results, more test several times, the effect is better.
Warm tips

Please correctly understand photochromic glasses, he color depth does not equal sunglasses.

Shipping and Returns

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