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. Polarized lenses are a great option for anyone who is spending a lot of time outdoors. Not only do they reduce bright reflection and unwanted glare, polarized lenses also help improve vision clarity in bright situations. Polarized lenses are one of a handful of sunglass options that you have to keep your eyes healthy in sunlight.
And not just during the summer either. Streaks or specks of light in your vision are…. Sunlight reflecting off smooth water, snow or flat roads can create glare which is not only annoying but can often be dangerous.
Blinding sun glare can cause accidents, snow blindness and can even sunburn your eyes. Long term exposure to sun glare has been known to cause cataracts. Thankfully, polarized lenses can shield you against the dangers of intense glare. A virtually invisible filter can be built into lenses to eliminate the amount of reflecting light that enters the eye. Available for prescription and non-prescription sunglasses, polarized lenses can be worn indoors by light-sensitive people, including post-cataract surgery patients and those continually exposed to bright sunlight through windows.
Most polarized sunglasses provide UV protection which is important to maintaining healthy eye sight. Polarized lenses can be combined with other features to enhance vision, such as bifocal sunglasses and progressive lenses, and coatings like anti-reflective and anti-scratch. Your healthy eyes will thank you. Members Members. 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.
Polarized sunglasses can be a good choice for most everyday situations. These are some specific situations when polarized sunglasses may be especially helpful:.
Polarized lenses will have a label saying so. To learn more about the benefits and drawbacks of polarized lenses, talk with your eye care provider. About Foundation Museum of the Eye. What Are Polarized Lenses For?
By Kierstan Boyd , David Turbert. What Is Glare? How Polarized Lenses Work Polarized lenses have a special chemical applied to them to filter light.
When to Use Polarized Glasses People who use polarized sunglasses often say they are less tired than usual after hours of battling sun glare. These are some specific situations when polarized sunglasses may be especially helpful: Fishing. People who fish find that polarized sunglasses drastically cut the glare and help them see into the water. A long day on the water can cause eyestrain.
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