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Glare and Its Effects - Glare occurs when one object in your field of vision is significantly brighter than the rest, interfering with your ability to see other objects clearly. This phenomenon, often referred to as "blinding glare," is caused by concentrated light reflecting off horizontal reflective surfaces such as car windscreens, sand, water, snow, or tarmac roads. Glare not only reduces vis …

The Key Points Which category do you need? - The main purpose of sunglasses is to cut out light that could otherwise damage your sensitive eyes. Sunglass lenses are categorised from 0 to 4, 4 are the darkest and cut out the most light, 0 are often transparent (but can have a slight tint), they cut out no light.For mountain use you should use Category 4 for high mountain ridges in clear condi …

When it comes to protecting your eyes from harmful sunlight exposure, understanding sunglasses categories and UV protection is key. This guide will help you navigate the various types of sunglasses and their features, ensuring you make an informed choice for your specific needs. Sunglasses Categories Sunglasses are classified into different categories based on their level of UV protection and visi …