I'm considering fillers; will the procedure look natural?

Lately, my under-eyes look so sunken that it makes me look much older, and it's really stressing me out. There's a limit to how much I can cover it up with makeup, so I've been frantically searching for reviews to see if I should get fillers. There are just so many reviews, and it's hard to even sift through them... so I ended up asking here.

I want to book an appointment right away if the results are good, but I'm really worried that the filler might clump or leave a bluish tint due to the Tyndall effect. I've heard that the skin around the eyes is thin and depends heavily on the doctor's skill, so I'm wondering if the sunken areas will really be filled in cleanly. Has anyone paid for eye filler treatment with their own money? Does it really brighten your complexion, and are you satisfied with the results?