A Comparison of Lower Eyelid Retraction in Normal Individuals with Positive versus Negative Orbital Vector.

Purpose: The present study aimed to compare lower eyelid retraction (LER) in individuals with a positive orbital vector with that of individuals with a negative orbital vector.

Materials And Methods: This cross-sectional study was conducted on 123 normal individuals including 64 men and 59 women aged 20-80 years. After the individuals underwent Hertel exophthalmometry, two side-view and front-view photos were taken using a camera.