According to the WHO, myopia is considered as one of the main public health problems worldwide . Our study included a group of children between 5 and 7 years of age, of which 18% were myopic in 2016 and 2017. Therefore, it has been concluded that figures of myopia prevalence in our sample of children in Spain are similar to that of Australia (14.02%) , Central Asia (17%), Andean Latin America (20.5%), and Tropical Latin America (14.5%) . Contrasting, figures of prevalence are higher in Pakistan (36.5%) and in Saudi Arabia (53.71%) .