Dark circles under the eyes can be caused by a depression or hollowness in the lower eyelids. Patients who have this problem can usually feel the underlying bone when the area of hollowness is touched. Patients who have had an overly aggressive lower lid blepharoplasty in the past may have a similar problem.
The modern way to treat this hollowness is with injectable fillers such as Restylane or Juvederm. These treatments are less invasive than traditional surgery and typically last 9-12 months. Some surgeons advocate grafting or repositioning of fat to reduce hollows under the eyes, but Dr. Kapadia finds that this treatment is much less reliable than injection of fillers. In some patients, a lid tightening procedure known as canthoplasty can be performed to improve the lower eyelid contour.
Dark circles under the eyes can sometimes be caused by excess pigmentation of the eyelid skin. Of the three causes of dark circles listed on this page, hyperpigmentation is actually the least common. Many patients feel that they have excess pigmentation, but this is often an illusion caused by shadows from excess eyelid fat or hollowness at the orbital rim.
A simple test to check for excess pigmentation can be performed while looking in a bedroom mirror with and without a flashlight. If the dark circles look bad in a mirror with overhead room lighting and then look better when a flashlight is used to illuminate the lower eyelids from below, the dark circles are caused by shadows and not by excess eyelid pigmentation. Bathroom mirrors usually have their own lighting (from the front) and wont work well for this test. The same principle applies with flash photography. If the dark circles disappear when a photo is taken with a camera flash, there is no excess eyelid pigmentation.
Excess eyelid pigmenation, when present, can be treated with bleaching creams such as hydroquinone. However, the results of this type of treatment are almost always suboptimal. Eyelid pigmentation is an unfortunate problem which is very difficult to treat. Sometimes patients who have excess pigmentation may also have excess fat or hollowness in their lower eyelids and treating these conditions may help improve their overall appearance.