In short. Rest, movement, skin thickness, sun damage, lid position and brow height: what each finding changes in the plan, and why a photograph cannot replace the examination.
Key points
- Thick, resilient skin means the static component is small and the muscle is doing most of the work.
- Thin, crepey, heavily sun-damaged skin means the opposite, and it also means anything done at the surface has to be planned around skin that heals slowly and marks easily.
An assessment of the eye corner is short, and almost all of it is observation. Its purpose is to answer one question: how much of what the patient sees is the muscle folding the skin, and how much is skin that no longer recovers.
The face at rest
The area is looked at with the face completely still, in ordinary room light and then under a light from above. This is the only moment at which the skin component can be seen on its own. What is noted is whether a line is visible at rest at all, how fine or deep it is, whether the surface is smooth or crepey, and how many separate lines there are.
The face in movement
The patient is then asked to smile, and to screw the eyes up against bright light. The examiner watches how the skin folds, how far the fold extends, and how much of the resting line disappears when the muscle relaxes. The difference between the resting and the moving picture is the muscle component.
The skin itself
The skin at the corner is lifted gently between two fingers and its thickness, elasticity and texture are assessed. Skin that springs back behaves differently from skin that holds a crease. The examiner is also judging how much of the resting line is a fold in the surface and how much is a loss of substance in the skin.
Sun damage in the surrounding skin
The upper cheek, the temple and the area below the eye are examined for the marks of accumulated sun: uneven tone, darker patches and a leathery texture. Finding them shifts the emphasis of a plan, because a component driven by photoaging is addressed through protection and surface treatment.
What the skin findings decide
Thick, resilient skin means the static component is small and the muscle is doing most of the work. Thin, crepey, heavily sun-damaged skin means the opposite, and it also means anything done at the surface has to be planned around skin that heals slowly and marks easily.
The lid, the brow and the eye surface
The position of the lid edge is noted, along with how completely the eye closes and where the brow sits at rest and when the eye narrows. A brow that is already low, a lid that is already loose or an eye that is already dry changes what is reasonable here, and each alters the plan rather than being a footnote to it.
Findings that change the whole assessment
- Lines on one side only, or a change that has developed over weeks rather than years.
- A lid that has begun to droop, an eye that no longer closes fully, or a brow that has fallen.
- A new lump at the corner of the eye, or skin that bleeds, crusts or does not heal.
Why the skin here behaves as it does is covered in why the eye corner ages first. What follows the assessment is described in the conservative rungs for crow's feet.
Frequently asked questions
Why does the examination start with the face completely still?
Because the still face is the only moment at which the skin component can be seen on its own. Once the muscle contracts, the fold it makes covers the same area and hides most of what the skin is doing. Watching the area at rest first, and only then asking for a smile, is what makes the two components separable rather than superimposed.
Why does anyone need to look at the brow for a line at the eye corner?
Because the brow and the eye corner share the same small set of muscles, and the position of the brow at rest and in movement changes what can be done below it. A brow that already sits low, or that drops when the eye narrows, is a finding that alters the plan and sometimes the decision. It is examined every time.
Should I bring photographs to an assessment?
They are more useful than most people expect. A photograph from several years ago shows whether the lines are new or long-standing, and photographs taken in different light show how much of what you see depends on the light rather than on the skin. Bring them if you have them, on your phone is fine, in ordinary daylight rather than with a filter.
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.