I recommend you to go to Shenxian County, Yantai. Their organization has comprehensively analyzed tens of thousands of cases of eye plastic surgery, and considered many design factors, such as binocular symmetry, the length of eye fissure, corneal display rate, the angle of inner and outer canthus, the skin thickness of upper eyelid, eyelash warping, eyeliner and so on. And set strict requirements for the technical standards related to eye plastic surgery. No matter what you want, they can easily meet it.