1. The objective determination of vision and visual acuity;Pearson, R.M.;Br J Physiol Optics,1966
2. Objective measurement of visual acuity;Wolin, L.R.; Dillman, A.;Arch Ophthalmol,1964
3. Evaluation of an objective acuity device;Millodot, M.; Miller, D.; Jernigan, M.E.;Arch Ophthalmol,1973
4. A method of visual acuity detection. Orthoptics-Proceedings of the Second International Orthoptic Congress;Catford, G.V.; Oliver, A.;Amsterdam: Excerpta Medica,1971
5. Development of visual acuity;Catford, G.V.; Oliver, A.;Arch Dis Child,1973