We investigated the clinical effectiveness of Eye-Search, a web-based
therapy app designed to improve visual search times, in a large group of patients with either
hemianopia, neglect or both
hemianopia and neglect. A prospective, interventional cohort design was used. For the main, impairment-based outcome measure (average visual search time), the within-subject control was affected vs. unaffected side. Four hundred and twenty-six participants who fitted the inclusion criteria completed all 4 time points (1200
therapy trials). We found a significant three-way interaction between
therapy, side and group. Eye-Search
therapy improved search times to the affected visual field of patients with either
hemianopia alone or neglect and
hemianopia, but not those with neglect alone. Effect sizes were moderate to large and consistent with previous studies. We found a similar significant interaction between
therapy and group for the patient-reported outcome measure "finding things" that most closely matched the impairment-based outcome (visual search). Eye-Search
therapy improves both impairment-based and patient-reported outcome measures related to visual search in patients with
hemianopia alone or
hemianopia and neglect.