Eighty-four children with at least 2 lines of amblyopia were treated with the CAM vision stimulator. 91% of the children who had received no previous amblyopia therapy showed improvement, 73% achieving 6/12 vision or better. Of children in whom previous occlusion therapy had failed 73.8% improved. The treatment appears to be effective, rapid, and well tolerated. Our initial impressions have been sufficiently favourable to stimulate further clinical evaluation.