What could be causing the sunken appearance in my eyes and how can this be corrected? (photos)

From the description and one photo provided, there appears rather significant facial volume deficit. This would account for the sunken cheeks and the prominence of the cheek "tail bones." And, since the upper cheek regions are a major support for the under-eyes, the absence of sufficient volume in that region typically results in the development of tear troughs and eye bag formation immediiately above (i.e. in the infraorbital regions). I had a male patient with similar problems right before the Labor Day holiday weekend. By simply using a robust HA volumizing filler to augment the cheeks I was able to address all the issues an achieved an immediate "Wow!" reaction. You would be wise to consult a board certified cosmetic dermatologist filler expert and best of luck and have a great rest of this holiday weekend.

Upon reviewing the photo you provided, it is apparent that the sunken appearance you are observing is due to a flat midface area. This effect often gives patients a tired or older appearance. There are several techniques and solutions available, each with its own set of advantages and disadvantages.Options include chemical fillers, fat transfer, or implants, all of which can replenish and add volume to the midface, resulting in a more uplifted and present appearance.After considering the various options, I recommend custom-designed implants that are tailor-made for your facial structure. With this approach, you can decide on the desired look you wish to achieve. Additionally, custom-designed implants are permanent and may prove to be more convenient in the long run.
Best,