Lighting-up May Cause Blindness

According to a scientist’s study published in the British Journal of Ophthalmology, smoking is also bad for vision. This study found that older smokers were twice as likely as non-smokers to suffer age-related macular degeneration (AMD), which blurs the central vision by affecting the macula. It may not be too late to quit, however: Former smokers who had kicked the habit more than 20 years earlier showed no increased risk for AMD.