Can I reposition under eye fat if I don't have eye-bags, only hollowness? (photo)

Hello, Based on the photo you posted, under-eye fat reposition would not be the best option for you. It looks like you do not have much of fat under the eyes and it rather looks hollow and sunken. The surgery is more for those who have bulging fat under the eyes. I believe facial fat grafting would be more suitable for you. basically, it uses your own fat from abdomen or thigh to provide more volume on the face. For more accurate plans, you should have in-person consultation with a surgeon.