Lo Cascio, G P Preschool-age vision screening. [electronic resource] - American journal of optometry and archives of American Academy of Optometry Dec 1971 - 1044-7 p. digital Publication Type: Journal Article ISSN: 0002-9408 Standard No.: 10.1097/00006324-197112000-00019 doi Subjects--Topical Terms: Child, PreschoolFemaleHumansMaleMethodsRefractive ErrorsVision TestsVisual Acuity