Abstract at Visio visual assessment and visual training has been done since 1991. The framework that is used, is the international classification of impairment disabilities and handicaps of the World Health Organisation. The awareness to the visual impairment and (dis)abilities is a great issue for the client. By carrying out visual assessment the client and the therapist will obtain a clear insight into the client’s awareness of his or her disabilities. When this step to awareness has been made, supplementary assessment will be done. The goal of the assessment and the training is proving a condition which enables the client to develop and train skills. We will give an explanation about observation and training by discussing one case: a child. In this lecture an explanation will be given about perception and especially about observation and training of visual skills.