Montvilaitė D, Grizickaitė A, Augytė A, Skvarciany I, Barkus A, Usonis V. Ophthalmological follow-up of prematurely born children in preschool age: prospective study of visual acuity, refractive errors and strabismus. AML. 2016;22(4):205-215. doi:10.6001/actamedica.v22i4.3239