Hello my dear all friends, today I am going to share tips on eye care. so here now start
STRUCTURE OF OUR EYES
Nature has provided eyes with eyelids to prevent any object from entering the eye. it shut out light when not required. A protective white membrane sclera covers most of the eyeball. eyeball has a small bulge at the fron which has a transparent membrane cornea over it. behind the cornea, coloured disc-shaped diaphragm lies, called iris. iris has small opening called pupil.
TIPS TO CARE YOU EYES.
Always wash your eyes with fresh water as it take out all the dust particles from eyes when you come from outside.
Donot read by bringing the books too close or keeping it too far as the near point of a normal eye is only 25cm. you must make distance of 25cm.
Never rup eyes because it may cause damage to some organelles of eye, wash it frequently with clean water.
Donot look at the sun or powerfull light directly. use spectacles, if advised by a doctor.
Insufficient light causes eyestrain and headache. there should be sufficient light where you look.
Too much light can injure the retina. Retina is the layer on which the image formed and there are optic nerves which inform the brain. the persistence of vision is 1/16th of a second. when the flash of still images of a moving object faster than 1/16th of a second then the eye perceives this object as moving.
thanks hope these tips help you very much.