What did Kylie Jenner do to make her eyes bigger and eyelids sultry?

Hello.  I am able to answer your question somewhat if you are referring to the fullness of her upper eyelids below the eyebrows.  If one does not have that fullness, they may be candidates for dermal fillers such as Restylane or Perlane (other fillers are available as well).  Only an examination in the office would help decide this.  All fillers are performed in the office with a topical anesthetic cream to numb the skin.  Fat injections are an option as well.  Dermal fillers last about a year.  Fat injections can last much longer than one year.Prices can vary so you would have to call offices specifically for the fees.

Based on these images alone she most likely had a browlift, upper eyelid blepharoplasty and she's either lost her buccal fat pads with age or she had a buccal fat pad removal. Keep in mind she also has tons of filler.