title: [Hemispherical perimeter for the study of spatial summation in the field of vision].
mesh_terms: D005069:Evaluation Studies as Topic; D058609:Visual Field Tests / Q000295:instrumentation*; D014794:Visual Fields
vernacular_title: Polusharovoĭ perimetr dlia issledovaniia prostranstvennoĭ summatsii v pole zreniia