[en] Congenital color vision deficiency or color blindness is one of the most common hereditary vision disorders, affecting up to 8.0% of men and 0.5% of women in the Caucasian European population. There are numerous international studies on congenital color vision deficiency; however, there is a significant lack of research in Spain. Local studies are outdated, dating back to the 1970s and 1980s, and specific studies have not been conducted in the context of Galicia. Therefore, this study aims to determine the prevalence of red-green color blindness among students at the Faculty of Sciences of the University of A Coruña. A descriptive cross-sectional study was conducted with 137 students enrolled in various programs at the Faculty. During April and May 2024, volunteers were assessed using the Ishihara and Farnsworth tests. Statistical analysis was performed using Fisher's exact test and the binomial test. Fisher's test results indicate that men are more likely to have color blindness than women, with an odds ratio of 3.41, indicating that men are approximately 3.4 times more likely to be color blind compared to women. Binomial test results indicate that the observed prevalence of red-green color blindness was 4.61% in men and 1.38% in women, concluding that this prevalence is similar to that observed in the Caucasian European population. However, due to the small sample size (137 students), these results cannot be considered statistically significant, as the p-values obtained (p=0.27 for Fisher's test and p=0.49 for men and p=0.30 for women for the binomial test) were considerably higher than 0.05. Furthermore, questionnaire results suggest that there is no relationship between color blindness and the academic performance of the respondents.

[gl] A deficiencia de visión de cor congénita ou daltonismo é un dos trastornos hereditarios da visión máis comúns, poidendo afectar á poboación caucásica europea até ao 8,0% dos homes e ao 0,5% das mulleres. Existen numerosos estudos internacionais sobre a deficiencia de visión de cor congénita, sen embargo, hai unha escaseza significativa de investigacións en España. Os estudos locais están desactualizados, remóntanse ás décadas de 1970 e 1980, e non se realizaron estudos específicos no contexto de Galicia. Polo tanto, este estudo ten como obxectivo determinar a prevalencia do daltonismo de tipo vermello-verde entre os estudantes da Facultade de Ciencias da Universidade da Coruña. Realizouse un estudo descritivo transversal con 137 estudantes inscritos en diferentes programas da Facultade. Durante os meses de abril e maio de 2024, os voluntarios foron avaliados mediante os tests de Ishihara e Farnsworth. A análise estatística levouse a cabo utilizando o test exacto de Fisher e o test binomial. Os resultados do test de Fisher indican que os homes presentan maior probabilidade de ter daltonismo que as mulleres, cunha odds ratio de 3,41, o que indica que os homes teñen aproximadamente 3,4 veces máis probabilidade de ser daltónicos en comparación coas mulleres. Os resultados do test binomial indican que a prevalencia observada de daltonismo vermello-verde foi do 4,61% nos homes e do 1,38% nas mulleres, concluíndo que esta prevalencia é similar á observada na poboación caucásica europea. Con todo, debido ao tamaño pequeno da mostra (137 estudantes), estes resultados non poden considerarse estatisticamente significativos, xa que os p-valores obtidos (p=0,27 para o test de Fisher e pvalor= 0,49 para homes e p-valor=0,30 para mulleres para o test binomial) foron considerablemente maiores que 0,05. Ademais, os resultados dos cuestionarios suxiren que non existe unha relación entre o daltonismo e o rendemento académico dos encuestados.