Eyelid tape can work to a degree but it requires daily maintenance and the crease is always less distinct. My mother used to tape and it worked to some extent but her crease was never really distinct and her eyelid crease would have probably formed to that degree anyways. Double eyelid surgery (Dr Young Seattle) is really the only way to make a distinct crease that will last for years and sometimes indefinitely. Here is video on Asian Blepharoplasty and Medial epicanthoplasty.
Thanks for reading, Dr Young
Dr Young specializes in Facial Plastic and Reconstructive Surgery and is located in Bellevue near Seattle, Washington