Before you choose the frame, you should have an eye exam to get the right size and prescription. As long as the size of the frame fits your face properly, you may feel comfortable to wear them. However, you should choose the style or color that suit your face well. You can try them on and find out the one suit you best.
To choose a good frame that fit your face, the try on process is very important. You should make sure that the nose pads fit snugly against the nose so that the glasses don't slip, and that the temples fit the ear closely.