Defines basic terms in the field of vision impairments. It also defines major types of these impairments and discusses main causes and preventive procedures. The course also describes historical developments related to education and training of blind and low vision students. Moreover, it describes the visual system, the effects of visual impairments, utilization of low vision, psycho educational evaluation and educational methods and curricula for visually impaired students, and orientation and mobility techniques. The course also presents the current situation of services for visually impaired persons in Arab countries and Jordan in particular.