This is where cheap glasses become expensive. Anti-reflective and anti-scratch coatings are usually worth the extra $5–$10. However, unless you have a very high prescription, you can often skip the "high-index" ultra-thin lenses. Also, think twice about blue-light blockers—many experts suggest they aren't strictly necessary for everyone. The Bottom Line

The undisputed heavyweight of "cheap." You can find frames starting as low as $7. They are the best for backup pairs or trying out bold trends.

How to Score Stylish Eyeglasses Without the Boutique Price Tag

Ensure it’s up to date (usually within the last year or two).