In short. Placed only when a hollow is visible at rest alongside the lines. Why a fold is not a hollow, and why this is one of the least forgiving areas of the face.
Key points
- The hollow is looked for with the face completely at rest, and the line is watched while the patient smiles.
- If the area is flat at rest and the line appears only in movement, volume is not the missing element.
- If there is a genuine hollow with the lines sitting in it, the rung is reasonable, and the plan is built around the hollow rather than the line.
Filler sits above the muscle rung on the ladder, and here it is the one most often reached for the wrong reason. It treats lost volume. It is not a treatment for a line, and the eye corner is where using it as one causes the most trouble.
The hollow that makes a line look deeper
As the temple, the upper cheek and the junction below the eye lose volume, the surface flattens and loses its curve. A crease then reads as deeper, because there is less tissue between it and the light. That is the situation this rung is for: hollowing visible at rest, alongside the lines rather than instead of them.
Why a fold is not a hollow
A line made by the orbicularis oculi is a fold in skin with nowhere to go when the muscle shortens. Placing material under a fold does not stop the folding, and adds substance where the skin is already gathering. Near the lid it can change the contour of the eye rather than the line. Skin thin enough to show the muscle beneath it will show what is put under it.
The finding that decides it
The hollow is looked for with the face completely at rest, and the line is watched while the patient smiles. If the area is flat at rest and the line appears only in movement, volume is not the missing element. If there is a genuine hollow with the lines sitting in it, the rung is reasonable, and the plan is built around the hollow rather than the line.
Why this region is unforgiving
The skin is the thinnest on the face, and the structures next door are the lid, the tear trough and the eye itself. Material placed too superficially can show through as a bluish or grey tint. Placed in the wrong plane it can produce swelling that persists for weeks, an uneven contour, or a lump visible in some lights only. A rare but serious event is material entering a blood vessel, which needs emergency care.
What is recorded before anything is placed
Previous filler in the area and when it was given, because the timing changes the anatomy. Whether the area swells with salt, sleep or allergy, since that is fluid rather than volume. The position of the lid edge, any history of dry eye, and any previous reaction. Photographs at rest in ordinary light, so a later judgement is against a record.
Three reasons to stop and ask questions
- A plan offering this as a line treatment, without a hollow being shown at rest.
- Material proposed for the crease itself, or for the lid margin where the skin is thinnest.
- Sudden pain, blanching, or any change in vision during or after an injection, which needs emergency care.
How a hollow is told from a fold at an examination is in how crow's feet are assessed, and what the muscle rung reaches in botulinum toxin at the eye corner.
Frequently asked questions
How do I tell whether I have a hollow at the eye corner or a line?
Look at the area with the face completely at rest. A hollow is a flattening or a dip that is there when nothing is moving, usually in the temple, the upper cheek or the junction just below the eye, and the lines sit inside it. A fold that only appears on smiling or squinting is not a hollow, and volume is not what is missing from it. An examination settles a question a mirror leaves ambiguous.
Why can material placed under this skin show as a bluish or grey tint?
Because the skin here is barely thicker than paper. Material sitting high in the tissue scatters light differently from the skin around it, and through very thin skin that reads as a bluish or grey shadow rather than as a smooth surface. It is a placement problem rather than an allergy, it is more likely the more superficial the material sits, and it is one of the reasons this area is treated cautiously or not at all.
If I do not like the result, can it be undone?
It depends on the category used. The hyaluronic acid group can be broken down with an enzyme, which makes a disappointing result at least partly correctable. Other categories cannot be dissolved and have to be managed with time, massage or further treatment. That difference is worth knowing before anything is placed rather than after, and it is a fair question to ask at the planning stage.
Risks & Limitations
- Nothing erases crow's feet. The lines soften with treatment and return as the orbicularis oculi keeps folding the skin.
- Reducing the pull of the muscle at the eye corner can affect lid closure, the tear film and the position of the brow.
- Material placed near the eye corner can show through thin skin, and this is one of the least forgiving areas of the face.
- Resurfacing thin periorbital skin carries a risk of pigment change, redness that persists and, rarely, scarring.
- Treatment in this area is repeated rather than completed, and the decision is remade each time the movement returns.
When to Seek Care
- Difficulty breathing or chest pain — seek emergency care immediately.
- A change in vision, double vision, or pain on moving the eye after treatment to this area.
- An eye that has become dry, gritty or painful, with a lid that no longer closes comfortably.
- Lines that have appeared on one side only, a lid that has begun to droop, or a brow that has fallen.
- A new lump or swelling at the corner of the eye, or a patch of skin that bleeds, crusts or does not heal.
References & Further Reading
- American Society of Plastic Surgeons (ASPS) — procedure and safety guidance
- National Institute for Health and Care Excellence (NICE, UK) — relevant guidance
- Cochrane Library — systematic reviews
- Chinese Medical Association Plastic Surgery Branch — clinical guidance
This page is patient education, not medical advice, and it does not cite individual studies. Discuss your own case with a qualified clinician. To arrange an assessment at Chongqing West District Hospital, see Contact & Consultation.