Eyesight is extremely valuable, and we are constantly being told what is bad and what is good for our eyes. Dr. Sunir Garg, retina physician and surgeon, provides us with some much-needed clarity on the subject.

Click here to learn more about the biology of our eyes, vision and proper eye health.

For listeners in the U.S. and Canada, visit MerckManuals.com to learn more. For those outside the U.S. and Canada, visit MSDManuals.com for more information.