Do you need to have an eye exam before purchasing glasses for astigmatism?

[Gardenview]

I don't want to pay for the exam cost, can I just buy a genertic pair of glasses for astigmatism from a drugstore/ eye care center or some where else?

[Gardi]

If you have a copy of your prescription which is not out of date or you know the number of your eyes , you can get them online . there should be a form for you to fill in the number so that they can make the lenses you need . I know eye exams do cost an arm and a leg .It is better to have vision insurance which can save you a lot .

[Gardiner]

Buying online will save you a lot but you have to have a prescription at hand. There are large selections for you to choose for your favorite eye glasses frames.