The present study explores the importance of visual impairments, in the form of visual acuity, stereopsis, dorsal and ventral processing problems and Cerebral Visual Impairment (CVI) as determinants of motor co-ordination difficulties. The Movement ABC was used to identify 49 nine to ten year old primary school pupils with hand-eye co-ordination problems (HECP) and 49 control pupils (without HECP). A pilot study comparing the performance of 30 case and 30 control pupils in one primary school on visual acuity, stereopsis and six different visual processing tasks was completed and the most discriminating visual tasks were then administered to the remaining 19 case and 19 control pupils in a second primary school.