[Early evaluation of the vision of infants: baby vision, a reality today].

Non invasive techniques such as preferential looking, Teller acuity cards and orthoptic examination allow an early detection and treatment of visual defect. As early as 3 months of age, the pediatrician should refer to an ophthalmologist any child at risk on the ground of its personal or family history. Visual evoked potentials and retinography should be used in the case of more severe problems.