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How do linear polarised glasses help your eyesight?

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Rd Optical

Linear polarized glasses or polarized sunglasses are eyewear having optical lenses with a special filter that selectively hinders some orientations of light waves while enabling others to pass through it. These lenses help to lower glare and improve visual comfort in particular situations, especially when it’s bright outdoor surroundings. The polarizing filter used in these glasses is designed of a special material that horizontally blocks polarized light waves, responsible for the glare appearing due to the reflections from flat surfaces including water, snow, roads, and car windshields. Vertical light waves then only pass through the filter, causing a low glare and improved visual clarity.


Linear polarized glasses are used for outdoor activities like when you are driving, fishing, skiing, boating, and sports, where glare drops and enhanced contrast can be helpful. You can also use them for general outdoor wear to offer a shield against harmful UV rays from the sun, as polarized sunglasses also provide UV protection. Remember that not all sunglasses are polarized, and not all polarized sunglasses are equal in terms of quality and effectiveness. When choosing sunglasses whether linear or circular polarised glasses always find reputable brands offering high-quality lenses and ensure that they are with adequate UV protection.



How do linear polarized glasses work and how they can help?


Glare reduction: Polarized lenses come with a special filter that helps to block horizontal light waves and allow vertical light waves to pass. This can reduce the glare effect that’s caused due to reflections from flat surfaces such as water, snow, and car windshields. Glare can cause strain to your eyes and impose distress, and prolonged exposure to glare can potentially lead to eye fatigue or discomfort. When the glare is lowered, polarized glasses can help to improve visual comfort and cut down eye strain, especially when you are in bright outdoor environments.


Contrast enhancement: Polarized lenses can also improve contrast by particularly blocking some specific wavelengths of light. This makes objects appear even sharper and clearer while improving the visual perspicacity, mainly in a bright setting where glare can reduce contrast. This turns out to be useful for outdoor activities where good contrast sensitivity is required for better visual performance.


UV protection: Several polarized lenses provide UV protection by blocking harmful ultraviolet (UV) rays coming from the sun. Exposure to UV rays for long hours can raise the risk of eye conditions such as cataracts, macular degeneration, and more. Polarized sunglasses that come with UV protection can reduce the exposure of your eyes to harmful UV rays, giving additional benefits for your eye health.


If you have any concerns about your eye health, it's advised to have a consultation with an eye care professional for a comprehensive evaluation and suitable recommendations.


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