Do you know what’s causing/caused yours? From what I’ve read and talked to others about it really depends on the cause. If it’s dehydration that’s an easy fix. Allergies can cause it too. If not it sounds like blepharoplasty surgery is the only 100% fix.
Caffeinated eye creams like the Ordinarys 5 Caffeine solution I heard works well to reduce the appearance of them though.