Abstract
BACKGROUND: Consistency in standardized periorbital photography-specifically, controlling for sagittal head tilt-is challenging yet critical for accurate assessment of preoperative and postoperative images. OBJECTIVES: To systematically assess differences in topographic measurements and perceived periorbital attractiveness at varying degrees of sagittal head tilt. METHODS: Standardized frontal photographs were obtained from 12 female volunteers (mean age 27.5 years) with the Frankfort plane between -15° and +15°. Unilateral periorbital areas were cropped, and topographic measurements were obtained. The images of each individual eye, at varying head tilt, were ranked in order of attractiveness by 11 blinded evaluators. RESULTS: Inter-rater and intra-rater reliability was excellent (intraclass correlation > 0.9). Downward sagittal head tilt was linearly associated with an improved aesthetic rating (Spearman's correlation; ρ = 0.901, P < 0.001). However, on subgroup analysis, eyes with lower lid bags received the highest aesthetic score at neutral head tilt. Pretarsal show and upper lid fold heights progressively decreased (P < 0.001), positive intercanthal tilt became more pronounced (P < 0.001), and the apex of the brow (P < 0.001) and lid crease (P = 0.036) arcs lateralized with downward sagittal head tilt, contributing to a more angular appearance of the eye. Marginal reflex distance (MRD) 1 was maintained, while MRD2 progressively increased (P < 0.001) with downward head tilt. CONCLUSIONS: Negative sagittal head tilt significantly improves periorbital aesthetics; however, in the presence of lower eyelid bags, this also increases demarcation of the eyelid cheek junction which may be aesthetically detrimental. Controlling for sagittal head tilt is critical to reliably compare preoperative and postoperative clinical photographs.