Ponentes
Descripción
Purpose:
This study aimed to compare static pupillometry under mesopic conditions between European
and African populations, given the limited data directly contrasting pupillary dimensions across
ethnic groups. Characterizing pupil diameter is relevant in detecting ocular alterations,
particularly in a multicultural context. While age-related pupillary changes are well documented
in Caucasian and Asian populations, evidence in Africans is scarce. This work establishes initial
reference values for the Senegalese population as a starting point for further studies.
Settings:
Data were collected at three locations: Caucasian participants at the Optometry Clinic of the
Complutense University of Madrid; Afro-Europeans (AFE, African origin but lifelong residents in
Europe) in the Lavapiés district of Madrid; and Africans (AFR) at Abass Ndao Hospital, Dakar.
The study complied with the Declaration of Helsinki.
Methods:
Analytical cross-sectional observational study with 88 CAU, 129 AFR, and 78 AFE, aged 18–75
years. All provided written informed consent. Static pupillometry was measured with the Nidek
HandyRef-K portable autorefractor-keratometer; five measurements per participant by the same
examiner.
Results:
• Ethnic comparison: mean pupil diameters: CAU 4.67 ± 0.7 mm; AFR 5.11 ± 1.0 mm;
AFE 4.44 ± 1.0 mm (p < 0.001).
• Age comparison: In CAU, no significant differences among young, adult, and >45
years groups (p > 0.05). Both AFR and AFE showed significant differences (p < 0.05),
with younger participants having the largest diameters, followed by adults, and the
smallest values in those >45 years.
Conclusions:
Africans showed larger pupil diameters compared to Caucasians and Afro-Europeans, between
whom no significant differences were observed. Age had no effect in Caucasians, while both
Africans and Afro-Europeans showed decreasing diameters with age. These findings provide
reference data for Senegalese populations and support further cross-ethnic research.
Key words: Axial length, Race, Sex, Ocular Biometry, Africans, Caucasians
References:
1. Birren JE, Casperson RC, Botwinick J. Age changes in pupil size. Journal of
Gerontology. 1950;5(3):216-21.
2. Winn B, Whitaker D, Elliott DB, Phillips NJ. Factors affecting light-adapted pupil size
in normal human subjects. Investigative ophthalmology & visual science.
1994;35(3):1132-7
3. Tekin K, Sekeroglu MA, Kiziltoprak H, Doguizi S, Inanc M, Yilmazbas P. Static and
dynamic pupillometry data of healthy individuals. Clin Exp Optom. 2018
Sep;101(5):659-665. doi: 10.1111/cxo.12659. Epub 2018 Jan 21. PMID: 2935607
