This is a clinical trial evaluating the efficacy of motion discrimination training as a potential therapy for stroke-induced hemianopic visual field defects involving 48 patients. They were randomised into two arms, one intervention (deficit-field) and one control (sighted-field). Patients were trained on a motion discrimination task. The main outcome measure was a change in perimetric mean deviation (PMD) on Humphrey Visual Field Analyzer in both eyes. The study found that there was an improvement in mean PMD for deficit-trained patients over six months, but no improvement was seen in sighted-trained patients. However, this was not found to be statistically significant. This study did not find a difference between treatment training in improving a stroke-induced homonymous hemianopia. Currently there is no widely accepted method for treating homonymous hemianopia following stroke. Further research into this area would be beneficial.