Sunglasses are good for your eyes because sunglasses protect your eyes from the ultraviolet (UV) rays coming from the sun. UV can cause cataracts.
Sunglasses also protect against blue light—one of the rays found in the sun and electronic devices like mobiles and computer screens. Blue increase the risk of macular degeneration in the long run. This is why sunglasses are important.
Read more about blue light and its causes here.
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