Avoid rubbing your eyes.
Instead, use water to clean them up or wash out any tiny pieces that caused irritation.
Protect your eyes from the damaging UV sun rays.
Wearing sun glasses every time you are outside will give the protection your eyes need. UV rays can increase chances for macular degeneration that has no cure.
Get enough of sleep.
Yes, your eyes require hours for rest and recharge. When you don’t get REM time, your chemical reactions in the body do not work for your rejuvenation. Old cells do not get replaced with new ones. And your eyes do not get all necessary vitamins and nourishing material for good vision and beautiful looks.