Visual field defects after radiosurgery versus temporal lobectomy for mesial temporal lobe epilepsy: Findings of the ROSE trial.

•Patients with lesional mesial temporal epilepsy were randomized by surgical technique.•VF defects were compared after temporal lobe SRS versus open epilepsy surgery.•VFD incidence and severity did not differ significantly by treatment arm.•VFD severity was not associated with seizure remission or driving status.•VFD occurs in about 90% of patients regardless of surgical method.