Why is there always a dent under my eyes in pictures?

This is difficult to answer without pictures, but this sounds like you have hollowing in the tear trough area. A combination approach will give the most improvement. Fillers, lasers and microneedling/prp improve this. I recommend getting a formal evaluation with a cosmetic dermatologist. Best, Dr. Emer

Filler can be used to add volume to hollow areas under the eyes and disguise irregularities.  There are many filler types available and an evaluation is needed to determine if you are a candidate and which filler is best for you.  I recommend contacting a board certified plastic surgeon in your area for a consultation.

Dear anon705991,it is hard to tell without an examination or a photo. Generally speaking, dermal fillers are a great option for face contouring. I would suggest you to consult a board-certified plastic surgeon. Only after a thorough examination you will get more information and recommendations.Daniel Barrett, MD, MHA, MS 
Certified, American Board of Plastic Surgery  
Member, Am. Society of Plastic Surgery

All fillers last a long time in the undereye area because it is not a highly dynamic area. Currently, the best fillers for that area are Volbella®/Restylane®Silk/Belotero®. Please consult a board certified aesthetic dermatologist for a consultation.

A picture would be very helpful but I would guess that you have volume loss in the mid cheek and tear trough. I would consider adding a filler, such as Restylane, using blunt cannula technique. Cannulas are the safest way to inject around the eye area because there is less bruising and less risk for vascular occlusion or blindness. This should be done by an experienced injector in this area.