using coloured blocks to build designs improves visual perceptual and memory abilities - 1 level - Applied Concepts in Vision Therapy di Leonard J. Press (CHAPTER 18 page 257) & first the blocks are placed directly on the pattern. As the patient was able to accomplish this task we added a metronome set at 120 beats/min (move every 4 beats). We later placed the paper pattern to the side as he built the pattern using left-right saccades. Finally we removed the pattern and he built a pattern based on the present pattern, which was constructed of blocks and observed on the table. This requires the patient to remember the shape, location, and orientation of the block that is being moved and becomes quite difficult to accomplish. This procedure has similar goals to the Kirschner flags. Fixations, eye-hand coordination, and spatial-perceptual organization are well treated with this procedure& ..