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All Special Releases. Our Story. November 15, This is because it reflects directly into the eye without being scattered. By coating polarized lenses with a special chemical, they block some of that light as it passes through them. With polarized lenses, the filter is vertical, so only some of the light can pass through the openings. Because glare is typically horizontal light, polarized lenses block this light and only allow vertical light.
With the horizontal light blocked by polarized lenses, this helps eliminate glare from shining directly into your eyes. Shop for polarized sunglasses online. Some people may find polarized glasses uncomfortable or may be unable to wear them due to their work. UV-protected lenses work by shielding your eyes against harmful UV exposure, which is linked to cataracts and eye damage. Even short-term exposure to harsh UV light can cause temporary blindness, or photokeratitis. According to the American Academy of Ophthalmology , many polarized sunglasses on the market include a UV protection coating.
Try looking at a reflective surface both with and without the lenses. Polarized lenses work by reducing glare from bright light off reflective surfaces and slightly increasing contrast, so they should make it easier to see things clearly in bright light. Another way to check for polarized lenses is by looking at an LCD screen. Polarization can often make it more difficult to see screens than through regular tinted lenses.
Through polarized lenses, LCD screens look black or very dark. In addition, the more dense the film is, the more polarisation it provides. In most cases, polarised sunglasses don't look any different from regular sunglasses. While denser films tend to be darker, the colour of a lens does not determine how much polarization it provides.
A very dark pair of sunglasses with a light film will not block more glare than a lighter shade of glasses with a denser film. The colour of the lens is also variable; although they cannot be made clear, polarised lenses can be made in grey, brown, green, or other colours. Different Polarised Lens Options:. Polarised lenses are available in nearly all lens types, materials, coatings and designs, such as polarised varifocal lenses or polarised high index lenses and can be added to any frame type such as rimless glasses.
Polarised Lens Benefits-. Drivers, fisherman, and photographers were some of the first to use polarised lenses. But if the surface is smooth, as with calm water or a flat piece of sheet metal, light reflects at one angle. When this light reflects right in your eyes, this is what we know as glare.
Polarized sunglasses reduce glare and solve this problem. Polarized lenses have a special chemical applied to them to filter light. Think of it like a miniblind hanging in front of a window. On polarized sunglasses , the filter creates vertical openings for light. Only light rays that approach your eyes vertically can fit through those openings.
The lenses block all the horizontal light waves bouncing off a smooth pond or a shiny car hood, for instance. As a result of this filtering, the image you see with polarized lenses is a bit darker than usual.
But objects look crisper and clearer with polarized lenses, and details are easier to see. People who use polarized sunglasses often say they are less tired than usual after hours of battling sun glare.
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