My bachelor's thesis deals with the problem of correlation of binocular vision and visual acuity. The research was conducted on a group of children aged 6-7 and was organized under the patronage of the National Institute of Public Health. The Faculty of Physics of the University of Warsaw was a partner of the project. The results were analyzed for visual acuity in children without disorders and with binocular vision disorders for each eye individually. A statistically significant difference was found between visual acuity in children without binocular vision and visual acuity in children with binocular vision disorders. deals with the problem of correlation of binocular vision and visual acuity. The research was conducted on a group of children aged 6-7 and was organized under the patronage of the Nardwy Instytut Zdrowia Publicznego. The Faculty of Physics of the University of Warsaw was a partner of the project. The results were analyzed for visual acuity in children without disorders and with binocular vision disorders for each eye individually. A statistically significant difference was found between visual acuity in children without binocular vision and visual acuity in children with binocular vision disorders.