Analysis of variation in objective upper eyelid contour due to Age, Sex and Ethnicity using TruCurve
Author: Jameel Mushtaq
Base Hospital / Institution: Moorfields Eye Hospital
ePoster presentation
Abstract ID: 24-496
Purpose
Eyelid contour assessment is a critical aspect of oculoplastics for diagnosis, planning, and evaluation of interventions. Traditional methods are subjective and lack consistency. Moreover, the variations in eyelid contour based on gender, ethnicity, and aging are poorly defined and subjective. Until now, objectively mapping the upper eyelid contour has been both time-consuming and resource intensive. This study aims to quantify objective differences in eyelid contour among different ethnicities and genders, and to examine the effect of aging.
Methods
Trucurve, a custom graphical tool described previously, was used to graph a quadratic line of best fit to the upper eyelid (y= ax2+b+c). Differences in the steepness of the parabola (a), the axis of symmetry (-b/2a) and height (c) were compared.
Results
Fifty healthy subjects (100 eyes; 23 males and 27 females; mean age 29.4 ±8.7) were analysed. Steepness and height were significantly different between ethnicities (p0.05).
Conclusion
A parabolic quadratic polynomial effectively provides an objective measure of eyelid curvature, which varies with sex, age, and ethnicity. Further research is necessary to establish normative eyelid curvature, as well as to evaluate the impact of pathology and surgical interventions.
Additional Authors
| First name | Last name | Base Hospital / Institution |
|---|---|---|
| Kate | Reed | Moorfields Eye Hospital |
| Bjorn | Helland Hansen | Bulbitech |
| Michael | Milad | Oxford University |
| Muhammad-Ameen | Kidiya | Queen Mary University of London |
| Mohsan | Malik | Moorfields Eye Hospital |
| Jimmy | Uddin | Moorfields Eye Hospital |
