Interventions and Effects Regarding Visual Spatial Disabilities in the Japanese Population: A Systematic Review

Abstract

[Purpose] The present study aimed to review intervention study designs, target diseases, intervention methods, effects, and outcomes regarding visual spatial disabilities. [Methods] An extensive literature search of several databases that included Japanese articles was performed. [Results] A total of 14 articles met the eligibility criteria. Regarding intervention design, we found 1 quasi-randomized controlled trial (RCT), 2 non-RCTs, and 11 before–after trials. Regarding target diseases, we found 14 articles on stroke and 1 on dementia. There were 10 types of intervention method, with 8 of them resulting in significant improvements in visual spatial disabilities. [Conclusion] Our findings suggest that there are few RCTs on visual spatial disabilities and few studies of conditions other than unilateral spatial neglect associated with stroke.