Open canthus surgery is divided into open canthus and open canthus. Generally, there are many internal angles, and the external angles are suitable for small and round eyes. Outside corners are generally not recommended unless necessary. The difficulty of canthotomy varies greatly, and the correction of severe epicanthus requires complicated surgical methods, so the price increases accordingly. Different surgical methods have different prices. The price of canthotomy is about 3,000 yuan for inner canthus and 5,000 yuan for outer canthus.