Playing computer games is my favorite pastime.As a consequence,my eyes become nearsighted.So I used to wear a pair of spectacles on my nose.I'm inclined to believe that it is rather difficult to retain one's eyesight.Many of my acquaintances are also nearsighted.Although I haved heard that scientist has made an spectacular achievement that can cure myopia,I don't want to do the painful operation.An symposium on eye-protection is held every year,aiming to evoke people of the significance of protecting our eyes.It is a solemn topic but most people are not aware of it until their eyes become nearsighted.Sometimes miniature conventions of this kind are also held in school to illustrate the importance of using our eyes correctly.When applying for jobs of some particular areas,people who are nearsighted will be extinguished by others whose eyes are sharp.
We shouldn't focus our eyes on an object for a long time.Diverting our focus periodically is necessary.Maybe everyone knows how to protect eyes,however,the multitude of us are not always conscious of it.
PS:These days I'm at a loss that my eyesight has become better.I can see better when taking off my spectacles.I don't know why.But I still see no prospect of the recovery of my eyesight.