Start with fit and UV protection to ensure comfortable all-day wear.

Check frame size (lens width and bridge), lens type (UV protection and polarization if you need glare reduction), material, and warranty/returns.

Look at lens coatings (scratch resistance, anti-reflective), nose pad/bridge comfort, and temple length for a secure, comfortable fit.

If you drive a lot or spend time outdoors, choose polarized lenses with a suitable tint; for everyday fashion wear, prioritize neutral coloring and comfortable materials, and filter by brand if you have a preference.