Different types of Sunglass lenses

Sunglass lensesTo reduce glare from bright light reflecting off with, so many types of lenses available, it’s a good idea to ask your optician for advice when choosing sunglasses. Different tints can help you see better in certain conditions, and your optician can help you choose sunglasses tints that are best suited for your needs.

Polarized lenses

Sunglasses with polarized lenses generally provide greater comfort and clarity of vision because they flat surfaces.

Anti-reflective coating

Sunglasses that have anti-reflecting (AR) coating applied to the back side of the lenses reduce glare margin

Mirror coatings

Also called flash coatings are highly reflective coatings applied to the front surface of sunglasses lenses to reduce the amount of light entering the eye. This makes them especially beneficial for activities in very bright conditions, such as snow skiing on a sunny day.

Photochromic lenses adjust their level of darkness based on the amount of UV light emitting on it. This lenses providing clear indoor use and are dark in bright sunlight, but clear in low ambient light conditions. They darken significantly within a few seconds of exposure to bright light, and take somewhat longer to clear. A range of clear and dark transitions is available.

Gradient lenses are tinted from the top down, so that the top of the lens is darkest. These lenses are good for driving, because they shield your eyes from overhead sunlight and allow more light through the bottom half of the lens so you can get a clear near vision.

Double gradient refers to gradient lenses where the top and bottom portions of the lenses are dark and the centre of the lens has a lighter tint. Double gradient lenses are a good choice if you want sunglasses that aren’t too dark but shield your eyes from harsh overhead sunlight and light reflecting off sand.

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