Ultraviolet rays from intense sunlight in the summer can have a negative impact not only on the skin but also on eye health, causing or worsening various eye diseases. There is no item like sunglasses that can prevent this and create a unique style. However, as the impression of sunglasses varies greatly depending on which product you choose, it is important to choose a product that matches your face shape rather than chasing trends. If you have a round face, an angled frame looks good. This is because it contrasts with the round face line, making the face look slimmer and creating a three-dimensional effect. However, if the frame is too small, it can make your face look bigger, so it is better to choose a frame that is slightly larger than the width of your face. For faces with square jaws, round or oval sunglasses are recommended because they tend to look somewhat strong. This is because the round frame gently alleviates angular facial lines. In particular, ‘cat-eye’ sunglasses with slightly raised tips have the effect of diverting the gaze upward and preventing the square jaw from appearing prominent.