“…Classical Special Education categorises persons with severe visual impairment based on the following criteriatime of origin (prenatal, perinatal, postnatal time of origin), duration (short-term, longterm, recurrent disease/defect), age of the people with visual impairment (early age, pre-school age, school age, adulthood, senium), causes of visual impairment (organ and functional defect), type of visual defect (loss of visual acuity, loss of field of vision, loss of the ability to perceive the whole colour spectrum, level of the ability to process visual information, oculomotor difficulties, level of visual impairment (blind persons, persons of low vision, persons with binocular vision disorder) (Růžičková, Kroupová, & Kramostilová, 2016;Kroupová, 2017;Regec, 2015).…”