After successful trial application by the manufacturer (Okuvision) of a stimulation technology (Okustim), the Federal Joint Committee (G-BA) decided on a trial guideline for a co-funded study defining the key points of the planned study, including type and time period of the study, target population and control intervention. Results from the trial will be evaluated and may lead to reimbursement of the method in both, the inpatient and outpatient sectors.