The ratio of the width of European-style double eyelids to the length of eyes completely conforms to the aesthetic law of human beings, and most double eyelids are parallel. However, the eye structure of the average oriental is often flat or prominent, with swollen eyelids, short eyelids, short eyelashes and more corneal coverage. Even most beautiful double eyelids are fan-shaped, and the width of double eyelids is relatively narrow relative to the length of eyelids. In particular, most orientals have short single eyelids, so if you make a wide double eyelid, it will definitely be out of place with the people around you.