We were unable to process your request. Please try again later. If you continue to have this issue please contact customerservice@slackinc.com. The 50% rule is a “reasonable approximation” for overall ...

We are faced with a global epidemic of myopia (short-sightedness) because we are deprived of deep violet light (360-400 nm). Myopia is projected to rise from 23 to 50 percent of the world’s population ...

Please provide your email address to receive an email when new articles are posted on . For the second consecutive year, Myopia Profile announced that September is Myopia Action Month, a global ...