Relationship between performance on tests of basic visual functions and visual-perceptual processing in persons after brain injury

Objective. In this correlational stony of adults recieving occupational therapy who sustained a cerebrovascular accident (CVA), the relationship between basic visual functions (including acuity, visual field deficits, oculomotor skills, and visual attention or scanning) and higher level visual level visual-perceptual precessing skills (e.g., visual closure and figure-ground discrimination) was investigated Method. Thirty adults who Sustained CVA and 20 adults without a history of CVA were given a basic visual function screening and the Motor-Free Visual Perception rest (MVPT). Scores on the vision screening and the MVPT were correlated satatistically Results. A Pearson product-moment correlation analysis produced a correlation of r = .75 between vision screening scores and scores from the MVPT. Conclusion. These results Suggest that a positive relation exists between basic visual-functions and visual-perceptual processing skills. Further; the results suggest that evaluation of virtual-perceptual processing skills must begin with assessment of basic visual functions so that the influence of these basic visual functions on performance in more complex rests can be taken into consideration..