Why should you wear sunglasses?

Sunglasses are essential for protecting the eyes from harmful ultraviolet (UV) radiation. They prevent damage to the cornea, retina, and lens, as well as reduce the risk of cataracts, photokeratitis, and other eye diseases. Additionally, sunglasses help avoid wrinkles around the eyes caused by frequent squinting.

How do sunglasses protect the eyes?

1. Blocking ultraviolet radiation. High-quality sunglasses block up to 100% of UVA and UVB rays, preventing their harmful effects on the retina. Prolonged exposure to sunlight can lead to age-related eye diseases.
2. Reducing eye strain. Bright light forces the eyes to strain, causing fatigue and headaches. Sunglasses reduce the load on the visual system, making sun exposure more comfortable.
3. Protection from dust and wind. Sunglasses not only protect against the sun but also prevent dust, sand, wind, and other irritants from entering the eyes, especially during beach vacations or in windy weather.

Interesting facts about sunglasses

• The first sunglasses appeared in China in the 12th century – judges wore them to conceal their eye expressions.
• Polarized lenses reduce glare – they are especially useful for drivers, fishermen, and athletes as they improve visibility.
• Sunglasses should be worn even in winter – snow reflects up to 80% of sunlight, which can damage the cornea.
• Dark lenses do not always mean UV protection – it is important to choose sunglasses labeled UV400.
• Cats and dogs can also wear sunglasses – special models are available to protect their eyes from the sun.

Sunglasses are not just a stylish accessory but an essential element of eye protection. They prevent the harmful effects of UV radiation, reduce eye strain, and protect against external factors. When choosing sunglasses, pay attention to their protective properties, not just their design.

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