Why my teachers need glasses only when reading while i need them all the time? i became really jealous!

Different needs: Needing reading glasses is usually a sign of being far-sighted - they can see distant better than close. Reading is blurry - often happens to adults in middle age. Near sighted folk can see close, but even a few meters may be very difficult. Don't be jealous - it can be annoying to have to keep track of them and switch on and off. We each have our own life - find the good in yours.