Vision therapy as part of neurorehabilitation after acquired brain injury–a clinical study in an outpatient setting

Abstract

Introduction: Oculomotor (OM) functions may be affected by acquired brain injury (ABI). The ability to benefit from rehabilitation or to perform daily activities may be affected by OM dysfunctions and associated symptoms. The purpose of this study was to investigate the effects of vision therapy (VT) as part of neurorehabilitation after ABI. Materials and Methods: The study included two groups of outpatients (median 49.5–52.0 years, range 27–67) admitted to neurorehabilitation due to moderate to severe ABI. One group received VT while the other group served as controls to monitor the course of OM dysfunctions without VT. Results: The intervention group showed significant improvements in convergence (Z = 2.26, p = .02), vergence facility (Z = −2.16, p = .03) and vergence reserves (Z = −2.44, p < .01 and t = −4.47, DF = 15, p < .01) along with a significant reduction in vision-related symptoms (Z = 2.97, p < .01). Discussion: We conclude that OM issues were frequent and that targeted VT, as part of neurorehabilitation, can be an efficient treatment resulting in improved functions and reduced symptoms. Further study will be required to understand how improved functions link to performance and satisfaction with everyday activities.