%0 Journal Article %A F. E. Preston %T DISTANCE OBJECT TEST TYPE FOR CHILDREN %D 1941 %R 10.1136/bjo.25.8.357 %J British Journal of Ophthalmology %P 357-360 %V 25 %N 8 %U https://bjo.bmj.com/content/bjophthalmol/25/8/357.full.pdf