Best Option to Fix Hollow Midface Look?

Cheek implants may help, but I think you should consider fillers since at your age it can help smooth away the hollowness.

There are actually many options to correct your hollow midface.  One is Sculptra, which is an injectable filler but can last up to 3 years.  Cheek implants are an option.  I would consult with a surgeon who offers both and he/she can discuss pros and cons of each.
 

As our understanding of aging has improved, facial plastic surgeons have come to appreciate how a hollowed mid-face can really give an aged, tired appearance. Options to correct this include both temporary fillers as well as surgical implants.

A variety of fillers can be used to fill the cheek. Options include Juvederm, Radiesse and Sculptra. These fillers can provide correction for anywhere from 9 months to several years depending on the choice of filler, technique and number of sessions.

For those looking for a more permanent solution, surgical implants are a great option. Implants can be placed through small pockets made on the inside of the mouth during a short surgical procedure. These implants are typically made from either solid silicone or GoreTex, both of which have a proven  and safe track record. Discussion of which options are best for you can be done during consultation with your facial plastic surgeon.