Start with the basics: ensure the frames are square for your face and confirm sustainable materials (recycled or bio-based) are used. Check the listed size measurements so they fit comfortably.

Look at material and construction, frame size (lens width, bridge width), lens options (prescription, blue-light filtering, UV protection), and any warranty or return terms.

For long computer use, prefer blue-light filtering and lightweight frames; for outdoor use, consider tint or polarization; for travel, choose durable hinges and a comfortable fit.

Choose models that support prescription lenses and offer add-ons like anti-reflective coating or polarization, and confirm compatibility with your optician’s requirements before buying.