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Epidemiologic Analysis of Change in Eyelash Characteristics With Age in Healthy Women

This study has been completed.
Information provided by (Responsible Party):
Allergan Identifier:
First received: January 23, 2012
Last updated: November 9, 2012
Last verified: November 2012
This study will asses epidemiologic changes in eyelash characteristics with increasing age.

Condition Intervention
Other: No treatment

Study Type: Observational
Study Design: Observational Model: Ecologic or Community
Time Perspective: Prospective

Further study details as provided by Allergan:

Primary Outcome Measures:
  • Eyelash Length as Measured by Digital Image Analysis (DIA) [ Time Frame: Baseline ]
    Photographs were taken of the eyelashes. Length was measured in millimeters. Data from both eyes were averaged for each participant for analysis.

Secondary Outcome Measures:
  • Eyelash Thickness as Measured by Digital Image Analysis (DIA) [ Time Frame: Baseline ]
    Photographs were taken of the eyelashes. Eyelash thickness/fullness was assessed across both eyes as an average of the 3 preset areas measured in millimeters squared (mm^2).

  • Eyelash Darkness as Measured by Digital Image Analysis (DIA) [ Time Frame: Baseline ]
    Photographs were taken of the Eyelashes. Eyelash darkness (intensity) was measured within the spline (a narrow area approximately 5 pixels wide that bisects the area of interest). Eyelash darkness was measured in both eyes and averaged for analysis using a scale where 0=black and 255=white.

Enrollment: 179
Study Start Date: December 2011
Study Completion Date: December 2011
Primary Completion Date: December 2011 (Final data collection date for primary outcome measure)
Groups/Cohorts Assigned Interventions
Healthy Females
Healthy Females
Other: No treatment
No treatment will be provided


Ages Eligible for Study:   18 Years to 65 Years   (Adult)
Sexes Eligible for Study:   Female
Accepts Healthy Volunteers:   Yes
Sampling Method:   Non-Probability Sample
Study Population
Healthy Females

Inclusion Criteria:

  • Willing to have photographs taken of the face/eye regions

Exclusion Criteria:

  • No visible eyelashes
  • Permanent eyeliner or eyelash implants
  • Semi-permanent eyelash tint, dye, or extensions within the last 3 months
  • Use of prescription eyelash growth products in the last 6 months
  Contacts and Locations
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Please refer to this study by its identifier: NCT01518270

United States, California
Irvine, California, United States
Sponsors and Collaborators
Study Director: Medical Director Allergan
  More Information

Responsible Party: Allergan Identifier: NCT01518270     History of Changes
Other Study ID Numbers: GMA-LTS-11-003
Study First Received: January 23, 2012
Results First Received: November 9, 2012
Last Updated: November 9, 2012 processed this record on April 26, 2017