I am a teenager and I still have perfect 20/20 vision. Now, I'm not expecting this to last, so I have a question.
How do you know when you need glasses? Do you just wake up one day, and your vision is blurry?
-
If you struggle to read things from a distance which you used to be comfortable with, you may need glasses. Same goes for if you struggle with things closer to you. If you start to notice that, pop into an opticians and get an eye check.