Health
Conditions
Brief summary
This study will asses epidemiologic changes in eyelash characteristics with increasing age.
Interventions
OTHERNo treatment
No treatment will be provided
Sponsors
Allergan
Study design
Observational model
ECOLOGIC_OR_COMMUNITY
Time perspective
PROSPECTIVE
Eligibility
Sex/Gender
FEMALE
Age
18 Years to 65 Years
Healthy volunteers
Yes
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
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Eyelash Length as Measured by Digital Image Analysis (DIA) | Baseline | Photographs were taken of the eyelashes. Length was measured in millimeters. Data from both eyes were averaged for each participant for analysis. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Eyelash Thickness as Measured by Digital Image Analysis (DIA) | 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) | 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. |
Countries
United States
Participant flow
Participants by arm
| Arm | Count |
|---|---|
| Healthy Females Participant's eyelashes were photographed at one study visit. | 179 |
| Total | 179 |
Baseline characteristics
| Characteristic | Healthy Females |
|---|---|
| Age, Continuous | 40.3 Years FULL_RANGE 10.3 |
| Sex: Female, Male Female | 179 Participants |
| Sex: Female, Male Male | 0 Participants |
Adverse events
| Event type | EG000 affected / at risk |
|---|---|
| deaths Total, all-cause mortality | — / — |
| other Total, other adverse events | 0 / 0 |
| serious Total, serious adverse events | 0 / 0 |
Outcome results
Primary
Eyelash Length as Measured by Digital Image Analysis (DIA)
Photographs were taken of the eyelashes. Length was measured in millimeters. Data from both eyes were averaged for each participant for analysis.
Time frame: Baseline
Population: All participants with values available.
| Arm | Measure | Value (MEAN) | Dispersion |
|---|---|---|---|
| Healthy Females | Eyelash Length as Measured by Digital Image Analysis (DIA) | 7.33 Millimeters (mm) | Full Range 1.15 |
Secondary
Eyelash Darkness as Measured by Digital Image Analysis (DIA)
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.
Time frame: Baseline
Population: All participants with values available.
| Arm | Measure | Value (MEAN) | Dispersion |
|---|---|---|---|
| Healthy Females | Eyelash Darkness as Measured by Digital Image Analysis (DIA) | 122.2 Units on a scale | Full Range 14 |
Secondary
Eyelash Thickness as Measured by Digital Image Analysis (DIA)
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).
Time frame: Baseline
Population: All participants with values available.
| Arm | Measure | Value (MEAN) | Dispersion |
|---|---|---|---|
| Healthy Females | Eyelash Thickness as Measured by Digital Image Analysis (DIA) | 1.39 Millimeters squared (mm^2) | Full Range 0.56 |