Improving near visual acuity and reducing central crowding in young children with visual impairment. During this evidence-based training, children learn to work with very crowded visual material (Huurneman et al. IOVS 54:6208-6216 (2013)). The training poses a demand on the perception of fine detail, accurate and steady eye movements, interference control (focussed/ selective visual attention), and eye hand coordination. Children with visual impairment often show a delay in these skills and they can be improved by training.