How to Choose Round Glasses by Proportion
Check the frame's total width, lens diameter, bridge position, and relationship to the brows. A round frame should feel stable without pressing at the temples or resting on the cheeks.
Curved lenses can soften an angular jaw or forehead. On a rounder face, a more defined rim, a slightly flattened upper line, or a wider bridge can add contrast. Larger lenses may add visual width to a longer face, while very small circles can make the face appear longer.
Use these ideas as a starting point, then prioritize comfort and the way the frame sits on your individual features.