Alicia William; Hiba Hussain; Faaiza Shafeeq; Miral Salama & Ramya Rathan

Although both nasal indices and palpebral fissure parameters have been individually studied across populations, little is known about their interrelationship, which may be of importance in aesthetic, forensic, and surgical contexts. This study aimed to investigate nasal morphometry and its relation to palpebral fissure dimensions across eight nationalities. A cross-sectional study was conducted among 240 healthy students (30 per nationality, aged 18-25). Nasal height and width were measured using vernier callipers; palpebral fissure dimensions were measured using a ruler. Statistical analysis was conducted using SPSS, employing ANOVA and Spearman’s correlation tests. The mean nasal index across the sample was 74.9 + 13.2, with 67.9 % mesorrhine, 26.3 % platyrrhine and 5.8 % leptorrhine. Filipinos had significantly higher NI (85.9 + 7.2; p<0.001), placing them predominantly in the platyrrhine category. A weak but significant negative correlation was found between nasal index and left palpebral fissure length (r=-0.145, p=0.025). No significant correlations were observed for other palpebral dimensions. The findings reveal a subtle but meaningful interrelationship between nasal structure and ocular morphology, with implications for population-specific morphometric standards in clinical and aesthetic interventions.

KEY WORDS: Nasal Morphometry; Palpebral Fissure; Anthropometry.

WILLIAM, A.; HUSSAIN, H.; SHAFEEQ, F.; SALAMA, M. & RATHAN, R. Nasal morphometry and its relationship with palpebral fissure shape across nationalities: An anthropometric study. Int. J. Morphol., 44(2):437-442, 2026.