In short. Lid tone, the position of the fat compartments, skin thickness, fluid behaviour, and how the shadow changes when you look up.
Key points
- A statement of which finding is present: a hollow, a mound, a colour problem, a fluid problem, or a combination.
- The plan follows from that statement rather than from what the patient asked for.
- Where the statement is a mound, the answer is an operation.
In this area the assessment is not a preliminary to the treatment; it is the part of the appointment that decides whether there is a treatment at all. Five things are established, and each can change the plan on its own.
Lid tone and where the lid margin sits
The lid is observed at rest, then gently displaced and released. A lid that moves easily and returns slowly has less tone than one that springs back, and holds added weight poorly. A margin that already sits low is a reason for caution, and where the position itself is the problem that is a surgical question.
Where the fat compartments sit
The orbital fat is divided into compartments, and which of them projects changes what the eye looks like. A fullness at the inner corner behaves differently from a generalised one, and a fullness across the lid with a hollow beneath it most often ends in disappointment.
Skin thickness and quality
How much tissue sits between the skin and the muscle decides how much material the area can hide. Skin that is thin and dry behaves differently from skin with a little substance. Small vessels showing through as a bluish tone are noted, because that tone is not something the treatment changes.
What the assessment produces
A statement of which finding is present: a hollow, a mound, a colour problem, a fluid problem, or a combination. The plan follows from that statement rather than from what the patient asked for. Where the statement is a mound, the answer is an operation. Where it is colour or fluid, no injection helps at all.
How the area behaves through the day
The patient is asked what the area looks like on waking, after salty food, after a late night, and by the end of the afternoon. Puffiness that is heavy in the morning and clears as the day goes on is behaving like fluid, and that is a finding rather than a complaint. It also sets the review point later.
What the shadow does when you look up
This is the most useful single step, and it costs nothing. With the eye looking up, the lid skin is stretched over what lies beneath it. A hollow deepens or stays as it is, because the depression is still there. A mound projects against the stretched skin and often becomes more obvious. A shadow caused by colour does not change at all.
The assessment should always include
- Lid tone and the position of the lid margin, on both sides.
- Which fat compartments project, and whether a hollow sits beneath them.
- The pattern of swelling through the day, and any previous under-eye treatment with its dates.
What the assessment protects against is described in Who Is a Poor Candidate for Tear Trough Filler. Why one of the findings is made worse by treatment is explained in Why Filling a Bulge Makes It Worse.
Frequently asked questions
What is the most useful part of the examination?
Asking the patient to look up while the lid is observed. Stretching the lid separates the two findings: a hollow deepens or stays as it is under the stretched skin, and a mound projects against it. It is simple to do and it changes the plan more often than any photograph does.
Why does the assessment ask about my sleep, salt and alcohol?
Because those are what the region responds to, and a face that swells with them behaves differently from one that does not. Puffiness that is heavy on waking and gone by afternoon is fluid, and material placed into a region that behaves that way is harder to judge and slower to settle.
Are photographs enough to plan the treatment?
No. A photograph flattens a three-dimensional area and removes the light that would show whether the darkness is a shadow or a colour. A photograph taken with a flash loses the shadow entirely, which is the very thing being assessed. Standardised photographs are useful for comparing results over time, not for the diagnosis.
Risks & Limitations
- The infraorbital vessels run close to the plane the material is placed in, and their position varies between people. Material entering one can travel toward the circulation around the eye: skin can be lost, and in rare cases vision is affected. This is time-critical rather than cosmetic.
- The lower lid is the thinnest skin on the face, so material placed too near the surface can show through it as a grey or blue-grey tint, and a lump here is visible in a way a lump in the cheek or the jaw is not. Only the reversible class can be broken down, and dissolving is its own procedure with its own risks rather than a clean undo.
- This region drains the worst on the face. Swelling lasts longer here than anywhere else, morning puffiness can persist for months, and repeated filling raises the baseline until the under-eye is puffy in a way that reads as a bag.
- Filling a bulge makes it worse: material placed beneath a herniated fat pad raises the surface around a mound that is still there, and the eye reads heavier rather than rested. Where the finding is a fat pad, the treatment that addresses it is an operation.
When to Seek Care
- Any change in vision, including blurring or a patch of lost sight — seek emergency care immediately.
- Severe pain out of proportion to the injection, or pain that is worsening rather than settling.
- Skin turning white, grey, mottled or dusky anywhere near the treated area.
- Swelling that is increasing after the first few days rather than settling, or fever with spreading redness, warmth or discharge.
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.