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Speaking of sun protection in summer, everyone would pay attention to their skin, few remember eyes. In fact, studies have shown that ultraviolet radiation will lead to keratitis, cataracts, retinal damage and other eye diseases. Thus, delicate eyes need our special care in heat summer days.
Don't look directly to the sunlight in the hot sunny days.Eyes are extremely weak. Short-term direct view to sunlight will result in an immediate shadow in eyes.Direct view to sun for a long time may bring about damage to eye and retina, accompanied with pain, tears, inflammation and blurred vision.
As is well known, eye is a delicate tissue that is sensitive to UV rays. It can absorb UV rays with various wavelengths. The 280-nm wavelength UV ray does the greatest injury to the cornea. It is likely to cause conjunctivitis.The 290-400nm wavelength UV ray can cause biggest damage to the lens, which is also the reason for cataract. Research indicates the risk to suffer from cataract rises by 10% if one more hour every day people expose to the sun. Then what should we do in preventing the harm?
I want to purchase beads in quantities of 50, so can you recommend any online/eBay stores (or actual ones) that sell Swarovski crystal beads for cheap and often give quantity discounts? I’m looking for low prices as well as low postage to Canada.It should be noted that you'd better buy a pair of swarovski beads of good quality. Sunglasses of poor quality can't help in protection but result in injury to eyes. Buy a pair of anti-ultraviolet sunglasses when summer comes so that your eyes will be safer. Medical research shows that it is unnecessary to choose lenses with too dark color. Grey and light grey are more effective in blocking UV rays. Those who wear contact lenses can also choose those with anti-VU code which can block 90% UV rays. Angel Clear crystal beads– Pandora Charm & Bracelet Compatible Reviews.Don't work or do activities outside at noon because the sum at that time is strongest and prone to hurt skin as well as eyes.