Most nearsighted kids need stronger glasses every year until their early 20s. I'm one of them. When you get new glasses, they should be strong enough for you to see the board, drive safely, etc. Yet I know lots of kids who try to squint, memorize the chart or use other strategies to try to fool the doctor into prescribing weaker lenses than the need. Doesn't that defeat the purpose of the exam as well as waste money ?
См. статью: Why do some people try to trick their eye doctor into giving them too weak a prescription?