Photographing crow's feet in a forced smile

Crow's feet, the radial lines that fan out from the outer corner of the eyes, are the concern where photos have misled professionals and patients the most. The reason is simple: the line depends on the muscle contracting, and the contraction depends on the smile. Asking for a "smile" at one visit and a "smile" at another rarely produces the same contraction. A photo with a maximum smile shows deep lines; another with a light smile shows almost nothing. If the two are compared as "before and after," the procedure seems to have done what it did not do, or the opposite.

The focus here is standardizing the record: which photos, how to ask for each smile, what lighting to use and how to label. The clinical side is on other pages, such as dynamic wrinkles and periorbital areas.

What does the orbicularis show in the photo?

The orbicularis oculi muscle circles the orbit, and when it contracts (in a smile, when squinting), the lateral skin folds into a fan. The pattern varies between people: some have radial lines, others fan-shaped, others more "V"-shaped or spread across the entire lateral and lower region. The photo records that pattern.

Two different readings appear:

• Static wrinkle: present at rest, without contraction. Reflects skin, photoaging and loss of elasticity. See static wrinkles.
• Dynamic wrinkle: only appears with contraction. Reflects the action of the muscle.

Without the resting photo, they cannot be told apart. That is why the set always includes both conditions.

Which photos make up the set?

The oblique matters because the side of the eye is seen better from the side. See 45-degree photo of the face. The logic of rest versus dynamic is in resting photo vs dynamic photo.

How to ask for each smile?

Three commands, always the same, prevent variation:

The natural smile is the hardest to get and the most useful. If the patient tenses up with the camera, talk for a minute about something else and photograph in the middle of the conversation. See also photo with a forced smile that misleads. If consent allows, a short conversation video and a frame extracted from a spontaneous smile work well (video to assess facial dynamics).

What lighting and distance avoid exaggerating the line?

A wrinkle is fine relief, and the light decides whether it shows. Strong light from above or from one side casts shadow inside each line and increases the impression of depth. Diffuse frontal light softens. The ideal is diffuse light from the front and slightly above, as in lighting for clinical facial photos, without flash and with care about shadow on the face.

Distance matters too: too close, and a line looks deeper, and a wide-angle lens widens the side of the face (wide-angle lenses distort the face). Keep the documentation distance and make the close-up with the camera zoom applied beforehand, or crop afterward, without stretching.

What to prepare in the patient?

• No glasses, which cover the side of the eye and create shadow (earrings, glasses and accessories).
• No heavy makeup or concealer at the corner of the eye, which fills in the line.
• Hair behind the ear, clear of the temple.
• Clean skin, no very oily cream, which shines.
• Gaze on the horizon, without squinting from the light in front.

A common detail: strong light in front of the patient makes them squint and create lines by reflex. Position the light so they do not need to frown.

How to talk with the patient?

The patient usually sees more lines in the maximum-smile photo than in the mirror. Show the resting one first and explain that the smile line is part of an expressive face. The conversation about natural look, expectations and maintenance follows what is in aligning expectations of a natural look. Management, product and doses are decisions for the qualified professional, and this page does not cover them.

How to compare at follow-up?

At the follow-up visit, ask for the same three smiles with the same commands, in the same light. Compare rest with rest, natural with natural, maximum with maximum. If one does not match (for example, the patient made a shyer smile), repeat before concluding. See when to take the follow-up photo and aligning photos by the eyes, remembering that alignment corrects scale and rotation, not expression.

What mistakes to avoid?

• Comparing a forced smile with a natural smile.
• Not photographing the resting state.
• Using strong light from above or from the side.
• Leaving glasses or hair over the side of the eye.
• Asking for a "smile" without defining the command.

A crow's feet record is only honest when all three conditions are there, labeled, and when the lighting, distance and command are the same as at the previous visit.