Perception of Facial Expression in Subjects With and Without Crow's Feet Lines

Status

Completed

Phases

Unknown

Study type

Observational

Source

ClinicalTrials.gov

Registry ID

NCT02417077

Enrollment

393

Registered

2015-04-15

Start date

2015-12-31

Completion date

2015-12-31

Last updated

2016-03-11

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Healthy Volunteers

Brief summary

This study will examine the perception of facial expressions among individuals with and without crow's feet lines.

Interventions

OTHERPhotographic Review

Photographic review of subjects who received treatment with onabotulinumtoxinA for crow's feet lines.

Study design

Observational model

COHORT

Time perspective

RETROSPECTIVE

Eligibility

Sex/Gender

ALL

Age

18 Years to No maximum

Healthy volunteers

Yes

Inclusion criteria

* English fluency

Exclusion criteria

* None

Design outcomes

Primary

Measure	Time frame
Independant Observers' Perception of Expressed Emotions on a 7-Point Scale	Day 1

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026