Start with fit and proportions: choose a frame width that matches your face and a bridge that sits comfortably on your nose. For a black square silhouette, balance angular features with a size that feels comfortable for all‑day wear.

Compare frame size (lens width, bridge, temple length), frame material (acetate vs metal for weight and durability), and lens options (prescription compatibility, coatings like anti‑reflective or blue‑light protection).

Consider frame weight and comfort, lens coatings for glare reduction, and whether the pair can accommodate your prescription (e.g., high‑index or progressive lenses) and screen use features if needed.

For long daily wear, choose lightweight frames with comfortable nose pads. For heavy screen use, prioritize blue‑light protection and anti‑reflective coatings. For strong prescriptions, verify lens availability and compatibility with coatings and frame size.