Something angular and slimming is your best look for a round face. Flat, rectangular lenses will make your face appear longer and thinner, mainly if they sit high on your face.
Men who want to soften their impression up a little can wear rounded lenses. Squared-off shapes can still work, but be sure the lenses are large and about even in height and width.
A thicker frame can add definition to your face - be careful not to get anything so heavy that it overpowers your actual features.
For the full infographic, check out the article linked below