Eyes are precious, eyes are delicate, and eyes need to be cared for.
* Wear sunshades when outdoor.
* do not expose to dust, fire and smoke for long minutes. Always wear protection.
* do not watch TV or computer in a dark room. It needlessly stresses your retina.
* always try to maintain generous lighting, unless you are trying to sleep.
* stay in well lighted rooms and avoid prolonged darkness.
* when reading in artificial light. Try to keep the source of light behind your back or away from your direct vision. It will otherwise damage your eyes beyond repair.