Whats a good web site to show or give tips that you need glasses or not?

Answer 1

I don't know if there are special websites for this, but if you notice you're having trouble reading the chalkboard or street signs etc. If you're getting headaches from reading books, or using the computer etc. If you're with other people and they say "Hey, look at that!" and all you see is a blur, you might want to schedule an eye exam.