Background: The global increase in refractive errors, particularly myopia, has coincided with rising trends in body mass index (BMI). This study explores the potential associations among BMI, vision status (normal, myopic, hypermetropic), and hue discrimination in a young adult population. Methods: This cross-sectional analysis included 100 medical students aged 17–24 years. BMI, refractive status, and hue discrimination were evaluated using standard ophthalmological methods and the computerized Farnsworth-Munsell 100 Hue Test. Statistical analyses included descriptive statistics and unpaired t-tests. Results: Myopic participants exhibited a slightly lower mean BMI (20.8 kg/m²) compared to those with normal vision (21.5 kg/m²), indicating a mild inverse association. Students with normal vision demonstrated greater variability in hue discrimination scores. Hypermetropia was slightly more prevalent in female participants. Conclusion: The results support previous findings of an inverse association between BMI and myopia. Although hue discrimination variability was modest, observed trends suggest underlying sensory processing differences based on refractive status. Longitudinal research is warranted to explore potential causal pathways.

BMI, myopia, refractive error, hue discrimination, student vision, young adults