Summary: Objetive: to assess the efficacy of the occipito-atlas-axis cervical manipulation technique to correct ocular divergence in subjects with exophoria.~Design: quantitative, experimental, longitudinal and prospective study.~Subjects: subjects over 18 years of age, with exophorias, without heterotropies and who do not present a contraindication to cervical manipulation.~Methods:Subjects with this ocul...