How to improve eyesight?

Natural Ways to Help Improve Vision and Eye Health

Don't smoke.
Eat a healthy, balanced diet with dark, leafy greens and fish high in omega-3 fatty acids.
Exercise regularly.
Use protective eyewear during activities that may be dangerous to your eyes, such as yard work, sports or home repairs.

Why can I suddenly see better without my glasses?

What Could Cause Sudden Vision Improvements? It's much more common for vision improvements to be caused by medical conditions than lifestyle changes. Conditions like diabetes, cataracts, or even the development of something called “second sight” could be what's causing your vision to suddenly be better.