TY - JOUR T1 - Anomaly in visual acuity testing in children. JF - British Journal of Ophthalmology JO - Br J Ophthalmol SP - 168 LP - 170 DO - 10.1136/bjo.59.3.168 VL - 59 IS - 3 AU - R. M. Youngson Y1 - 1975/03/01 UR - http://bjo.bmj.com/content/59/3/168.abstract N2 - A popular and widely used method of visual acuity testing of young children is criticized on the grounds that it often fails to elicit amblyopia. The results obtained when the visual acuity of thirty amblyopic children was tested by different methods show that monotype testing gives an apparent acuity averaging three grades better than those derived from the standard Snellen's test. ER -