Being double eyelid surgery won't affect your eyesight. Because the main operation of this operation is between the skin surface and dermis, which may touch the levator muscle at most, the skin tissue in these parts will not affect the function of the patient's eyes, because the function of the eyes is mainly on the eyeball and retina, which cannot be touched by the operation. So double eyelid surgery won't affect your eyesight. It is no problem to suggest that you go to a regular plastic surgery hospital for double eyelid surgery.