TY - JOUR T1 - Development of visual acuity JF - Archives of Disease in Childhood JO - Arch Dis Child SP - 47 LP - 50 DO - 10.1136/adc.48.1.47 VL - 48 IS - 1 AU - G. V. Catford AU - A. Oliver Y1 - 1973/01/01 UR - http://adc.bmj.com/content/48/1/47.abstract N2 - A hand-held electrically operated instrument has been devised to assess visual acuity by means of the phenomenon of opto-kinetic fixation nystagmus. An accurate determination of visual acuity has been obtained from an early age, and a graph of the normal visual acuity development produced. It has been confirmed that adult acuity is reached by 3 years of age. ER -