Impact of Visual Impairment Assessment on Functional Recovery in Stroke Patients: a Pilot Randomized Controlled Trial

Abstract

Aim: To determine whether providing therapy staff with objective information regarding the nature of visual impairment enhances functional recovery of stroke survivors. Methods: A mixed methodology incorporated a pilot randomized controlled trial (RCT) and qualitative study. Patients presenting acutely with functional disability and suspected visual deficit, underwent visual assessment. Patients with visual impairment were recruited; all subjects received rehabilitation. The sample was randomized to group A (control) where details of visual assessment were withheld from therapy staff and group B (experimental) where details of visual assessment were disclosed. Functional measures (Functional Independent Measure, timed walk) were recorded at baseline and 6-week follow-up. Health professionals participated in a focus group to discuss the perceived influence of the additional visual assessment service on functional outcome. Findings: 64 patients were recruited over 18 months (group A=31; group B=33). Drop out resulted in 19 subjects in group A and 20 in group B for full analysis. Significant functional improvement was noted in both groups, no significant difference was found between groups. Health professionals reported a perceived positive impact from the vision assessment service. Conclusions: Provision of visual assessment information did not influence functional recovery. Qualitative findings indicated perceived benefits from the provision of the vision assessment service.