How about Sone technology of Shenyang celebrities cutting double eyelids?
I don't know how effective it is, so we can consider this method. If you want to improve the eyelid, you can directly bury the suture (or polymer suture) between the skin and the meibomian, so that the skin of the upper eyelid adheres to the meibomian to form a double eyelid. Compared with the cutting method, the embedding method is not durable enough.