Other therapies utilized by IAHP include eye exercises for children who have an eye that converges more than the other when looking at an object in the distance and those who have one eye that diverges more than the other when an object is moved slowly toward the bridge of the nose. IAHP also recommends stimulating the eyes of children with amblyopia by flashing a light on and off. For children with poor hearing, IAHP recommends auditory stimulation with loud noises, which may be pre-recorded. Brain-injured children may also be taught to identify by touch alone various objects placed in a bag.