It’s not just about looking trendy. The right sunglasses will protect your eyes from the sun’s ultraviolet rays. UV exposure makes you more likely to develop cataracts and damage your retinas.
Smoking increases your risk of cataracts — clouding of the eye’s natural lens, that can lead to blindness — optic nerve damage and degeneration of the retinas. Studies have found that smokers are twice as likely as non-smokers to develop cataracts, and the risk increases the more your smoke.