I had a blepharoplasty a year ago which helped with my eye bags but I still don't have smooth under eye area.
When fat is removed from under the eyes, it can reveal a hollowness as a result of the loss of too much volume. Additionally, the transition from eyelid skin to cheek skin can be more noticeable. A simple fix is the injection of a specialized product such as Belotero along the line to smooth this hollow. it usually lasts for 9 months and is reversible if you do not like the effect.