Choosing a frame may be challenging but it all depends on one’s personal preference.
TIP: Always choose the frames with the shape that is opposite to your face shape. For example, boxy or rectangular frames work well with round faces, and vice versa. If you have an oval face shape, you will find that many glasses work well for you seeing that oval face shapes generally flatter most of the frames. A round pair of sunglasses cannot cosmetically fit all sunglass wearers satisfactorily but again, it is all about your personal style and preference. The criterion is that the frame shape should basically contrast with the wearer's face shape. It is necessary for each customer to know his or her own face shape and comfortability level in order to make a sound purchase.