Lower eyelid surgery and the tear trough

Read this first

A dark circle has three common causes and they respond to completely different things. Pigment, where the skin itself is darker, responds to topical treatment and sun protection and to nothing surgical. Vascular, where blue-purple vessels show through thin skin, responds partly to sleep, fluid and allergy control. Structural, where a shadow falls into a groove at the orbital rim, responds to neither, and is the only one of the three this page is about.

The self-test in the improvement plan separates them, and it is worth doing before reading any further: stretching the skin flat, or lighting the face from below, makes a structural shadow disappear and leaves a pigmented one exactly where it was.

What it is

Lower blepharoplasty with fat repositioning, sometimes called a transconjunctival blepharoplasty with fat transposition. The orbital fat that bulges forward as the retaining ligament weakens is released and moved down over the bony rim rather than removed, filling the groove instead of just flattening the bulge above it.

The incision is usually inside the lid, which leaves no external scar and does not disturb the muscle that holds the lid against the eye. A skin-pinch through a lash-line incision is added when there is genuine excess skin.

How it works

The tear trough is where the orbicularis retaining ligament tethers skin to the orbital rim. Above it, fat bulges. Below it, the cheek has descended. The groove itself has not sunk; it has stayed put while its neighbours moved. Moving the fat across that line converts a step into a slope, and the shadow goes because there is no longer an edge for light to fall off.

This is why removing the fat outright, which was the standard operation for decades, could make the area look worse over time: it flattened the bulge and left the hollow.

Recovery

Bruising and swelling for one to two weeks, occasionally longer under the eye than anywhere else on the face. Most people are presentable at two weeks. The contour settles over three months.

Risks and what actually goes wrong

Chemosis, which is swelling of the conjunctiva and is common and self-limiting. Dry eye. Persistent swelling. Contour irregularity where the moved fat sits unevenly. Lid malposition, meaning the lid margin pulls down or away from the eye, which is the serious one and is far less common through a transconjunctival approach than through a skin-muscle flap.

Lower-commitment alternatives

Hyaluronic acid filler placed deep against the bone fills the same groove without surgery, and it is reversible with hyaluronidase, which matters more here than anywhere else on the face.

It is also the most technique-dependent filler site there is. The skin is thin, so superficial product shows as a blue-grey line through it, an effect called the Tyndall phenomenon. The area holds water, so too much product leaves a puffy shelf that can persist for a year or more. And the angular and infraorbital vessels run through the region, which places it among the higher-risk sites for vascular occlusion. A shallow groove in thick skin is the case where this goes well; a deep groove under thin skin with a real fat bulge above it is the case where filler makes the bulge more obvious.

What LooksRatio assumes

The projection moves under-eye tone 80% of the way to its reference range and assumes a successful result from a licensed surgeon, for a shadow that is structural. It cannot tell a structural shadow from a pigmented one, because a photograph does not contain that information. If the self-test says pigment, the ceiling on this page does not apply to you and the topical guidance in the plan does. It is a ceiling, not a forecast.