Your eyes are rather delicate and therefore require special care. They are your windows to the world, after all, and you mostly rely on vision as far as senses go. For this reason, you would do well to take heed of what institutions like the National Eye Institute (NEI) have to say about proper eye care.
Among other things, the NEI recommends eating right, maintaining a healthy weight, avoiding smoking, wearing protective eyewear for activities (such as sports), and giving your eyes enough rest. You might also be unaware that you already need corrective eyewear for common vision problems, and the only way to find out for certain is to see an eye doctor.”