Cerebral palsy is the most common neurodevelopmental disorder of motor control of the body posture and movement. There are numerous disabilities associated with CP, and visual impairment is one of the most common, whereas incidence and severity of visual problems differ in various types of CP. Vision has a great impact on the overall development and functioning of the child, as well as on the quality of life. However, children with CP are usually not adequatly assesed due to the presence of additional disabilities, and the problems in everyday functioning which are the consequences of visual impairment can be attributed to intelectual, motor and other disabilities.This research has two goals. The first goal is to determine the correlation between visual functions and functional vision in the area of communication, while the second goal tends to establish differences in the severity of difficulties of visual functions and the ability to use vision in communication considering the type of cerebral palsy according to GMFCS classification system. Descriptive statistic methodology available in the SPSS program has been used in the data analisys of the defined variables. Spearman test has been used to analyze correrations between visual functions and functional vision, while Mann Whitney and Kruskal-Wallis tests have been used in the analizying of differences among the participants according to different types of cerebral palsy. The results of this reaserch are indicating the correlation between few variables of visual functions and functional vision, and no statistically relevant difference among groups of participants according to different types of cerebral palsy. Further reaserch and continuous education of experts in this area is needed to adequatly adress the childrens behaviour and to create appropriate educational and rehabilitaion intervention.