A new acuity test for infants and young children between 1 and 36 months of age is described. The test was used to evaluate the acuities of 66 infants and young children during a one-day vision screening. At least one estimate of visual acuity was obtained from 63 of the 66 children. Fifty-two of the children completed two monocular acuity tests (or two monocular tests plus a binocular test). The average total test time for these 52 children was less than 15 minutes. Results indicate that the acuity card procedure can be used as a complement to standard optometric tests for large-scale screening of infants and young children.