For healthy eyes, opt for light-colored sunglasses
Wearing sunglasses outdoors is also a way to protect your eyes. But a lot of people don't know that it's important to wear proper sunglasses. A qualified pair of sunglasses must be able to block the passage of ultraviolet rays, have good resolution for different colored traffic signals, and regular sunglasses belong to the lens series with a strict diopter of 0.008 degrees or less.
An ophthalmologist said that in her clinic, she often encountered patients who wore sunglasses and shed tears and were afraid of the light. Most of the sunglasses they chose were red and green, contrary to the light colors recommended by medicine. In fact, brown, light green, etc. are good for the eyes.
Wearing too dark glasses will make the eyes in the dark room environment, human eyes in the dark environment will automatically dilate the pupils, long-term dilated pupils easy to cause glaucoma and other diseases; Poor quality sunglasses also cause more UV rays to penetrate the eyes, which is likely to cause solar keratitis, corneal endothelial damage, macular discoloration and other diseases. Dark glasses reduce the ability of eyes to distinguish colors, which is easy to confuse colors and cause traffic accidents.
How to Buy Sunglasses
When buying sunglasses, be sure to pay attention to the lenses, tags, color and UV index of the product. Each regular qualified product has a certificate of quality inspection, in the purchase should let the business show the relevant proof. The tag on the sunglasses is the "ID card" of the product, indicating the origin of the glasses, but also hiding a lot of useful information, such as whether the glasses you buy are sunglasses or light lenses, resin lenses or other materials... This should not be ignored.
For UV protection, it's best to buy sunglasses with real shading lenses in light gray, light green, and blue-gray, because these relatively soft colors don't change when you look at nature. For sunglasses, the UV index is an important measure of how well it filters out UV rays. Most current sunglasses have a UV index between 96 and 98%, and dark lenses are better than light ones
How to Wear Sunglasses
1. People who are not mountaineers or have special needs should avoid wearing sunglasses for a long time.
2. Ordinary people now wear sunglasses, in addition to the function of protection, will also consider the role of decoration, but we should not forget their health for the sake of temporary beauty.
3. Many people don't take off their sunglasses when they go indoors. This is a bad habit.
4. Sunglasses should not be worn for a long time. If your eyes feel tired or wear them for 30 minutes, you should take them off and let your eyes change.
5. Sunglasses should not be worn by people over the age of 40 or those with glaucoma.
