The article provides an overview of the methods used to assess visual perception in persons with disabilities. The authors divided visual techniques and optical illusions from the “Visual Phenomena and Illusions” catalog into groups according to the main properties of a person’s visual perception. The main types of disorders occurring in persons with disabilities in case of affection and / or insufficient development of the visual, cognitive and psycho-emotional systems are also considered. These methods for assessing visual perception can be used in the framework of psychological and pedagogical support, in the educational process and in psychological examinations of students of inclusive groups in higher education organizations. Their use allows screening examinations of students with psychophysical impairments and receiving information about the peculiarities of their visual perceptual processes and the development of the mental sphere. As the practical experience of the authors of the article shows, the use of visual techniques and optical illusions is a way to increase interest and motivation to learn from students; allows you to identify limitations in the perception of students with disabilities and especially the flow of cognitive processes in them.