I suggest doing the whole eyelid together, because the doctor will make both sides the same at one time according to the shape of your eyes. If you only do the eyes, I am sure that the doctor can't completely guarantee the effect, and there may be a chance of 3 eyelids. More importantly, natural and artificial double eyelids cannot be completely integrated. The first time I heard of your idea of doing half and leaving half. Hehe, but finally, ask your surgeon. If he agrees, you can have your eyes done first. If the effect is not good, you can make it up. Anyway, it is very simple to do double eyelid surgery, but in that case, it will take two operations. I think it is better to do it once.