I cant tell from your photo if you have fat bulges above the tear troughs. If you do then blepharoplasty to remove the extra fat will certainly help.
To reduce the darkness, a chemical peel will help. You can also have laser done, such as Erbium to improve the color and thickness of the skin.
Your eyes look good at this time. If you get desparate trying to get a permanent fix you might end up doing too much. That increases the risk of complications.
Take your time with a step wise approach;
a. Regular skin care, especially a toner. I love Nutrient toner from PCA (Physicians Choice of Arizona) skin care line.
b. Strict sun protection, use sunscreen and dark sunglasses every day.
c. Mild chemical peel like 25% TCA in winter time
d. May be a longer lasting filler like Sculptra (But only by someone who does a lot of Sculptra and has done it around eyes.)