Why is UV light harmful to the eyes?
After a day in the active sun without "protection", you can get not only skin burns, but also the eyes, because ultraviolet radiation negatively affects vision, causing various diseases. UV radiation accumulates (including with age), therefore, it is necessary to pay special attention to protecting children's eyes. Children's eyes are especially susceptible to harmful rays, plus babies spend more time outdoors and use sunglasses much less often than adults.
Are there any rules for choosing sunglasses?
When choosing sunglasses, it is important to remember that they are not only a fashion accessory, but also the main eye protection. It is better to buy them from an optician and carefully check the markings on the lenses. The degree of protection ranges from 0 to 4, and each is suitable for a specific type of terrain (i.e. solar activity) and type of activity.
0-1 ─ cloudy weather
1-2 ─ city in sunny weather
2-3 ─ beach vacation
3-4 ─ ski resort
In the matter of eye protection, the frame is also important: it should fit snugly to the face, sit well on the bridge of the nose, have wide temples and be light. For more information on how to choose your ideal frame, read the article “It suits you: how to choose a frame for your glasses according to the shape of your face”.
What is the best glass color?
As for the color of the glasses, it all depends on the situation. Fans of beach recreation and water sports (windsurfing, rowing, water skiing) are better off choosing lenses of warm colors: brown, red, yellow (the latter are also suitable for motorists). Blue and orange are best worn in the city.
When choosing a lens shade, it is important to take into account the features of the spectrum of light waves: for example, blue glasses will not be able to protect the eyes from the rays of the blue spectrum, which are reflected from the surface of the water, but brown or yellow glasses can delay such a wave.
The most versatile are gray and black. They practically do not distort colors and protect well from strong sun. But here you need to be careful: you should not choose too dark glasses. Such lenses, especially if they are also of poor quality and without UV filters, not only will not help maintain the health of the eyes, but can also harm them: due to darkening, the pupil dilates, and the retina is more exposed to sunlight.
What should wearers do?
In the summer, you need to switch to lenses with a UV filter - they block about 99% of harmful radiation. Fans of traveling and leading an active lifestyle should pay attention to one-day models ─ the most hygienic and simple option. It eliminates the need to carry lens solution and storage container with you. In addition, in the event of an unforeseen situation ─ for example, if sun cream gets into the eye ─ a daily lens can be easily replaced.
Photo: Getty Images
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