Clinical trial · Interventional
Biofeedback for Hemianopia Vision Rehabilitation
Biofeedback Training to Improve Fixation Stability, Visual Function Outcomes, and Quality of Life in Hemianopia Cases
- Source
- ClinicalTrials.gov
- Retrieved
- Sep 8, 2026
- Layer
- normalized (units and labels harmonized; values unchanged)
- Run
- ING-CLINICALTRIALS-20260908-000001
Summary
Brief summary (as posted)
Patients with brain injury secondary to stroke, surgery, or trauma frequently suffer from homonymous hemianopia, defined as vision loss in one hemifield secondary to retro- chiasmal lesion. Classic and effective saccadic compensatory training therapies are current aim to reorganize the control of visual information processing and eye movements or, in other words, to induce or improve oculomotor adaptation to visual field loss. Patients learn to intentionally shift their eyes and, thus, their visual field border, into the area corresponding to their blind visual field. This shift brings the visual information from the blind hemifield into the seeing hemifield for further processing. Patients learn, therefore, to efficiently use their eyes "to keep the 'blind side' in sight". Biofeedback training (BT) is the latest and newest technique for oculomotor control training in cases with low vision when using available modules in the new microperimetry instruments. Studies in the literature highlighted positive benefits from using BT in a variety of central vision loss, nystagmus cases, and others.The purpose of this study is to assess systematically the impact of BT in a series of cases with hemianopia and formulate guidelines for further use of this intervention in vision rehabilitation of hemianopia cases in general.
Conditions
Conditions (5)
Free-text conditions as registered, with the CancerIndex entity they were reconciled to and the match type.
| Condition (as posted) | Mapped entity | Match | Confidence |
|---|---|---|---|
| Brain Injury | — | UNRESOLVED | — |
| Brain Trauma | — | UNRESOLVED | — |
| Brain Tumor | Brain Neoplasm | ALIAS | 0.90 |
| Hemianopsia, Homonymous | — | UNRESOLVED | — |
| Stroke | — | UNRESOLVED | — |
Interventions
Interventions (1)
| Intervention | Type | Mapped drug | Match |
|---|---|---|---|
| Biofeedback training | Device | — | UNRESOLVED |
Design
Arms and outcomes
Arms (2)
- type
- EXPERIMENTAL
- label
- Group A
- description
- The patients will undergo baseline assessment and receive the intervention, being assessed after the intervention.
- interventionNames
- Device: Biofeedback training
- type
- NO_INTERVENTION
- label
- Group B
- description
- The patients will perform the same tests for assessment as in group A, however, no intervention will be done. They may enrol in the study as group B after completing group B participation.
Primary outcomes (6)
- measure
- Visual Acuity
- timeFrame
- 1 week post biofeedback
- description
- ETDRS best corrected visual acuity
Eligibility
Eligibility (as posted)
- Sex
- All
- Minimum age
- 18 Years
- Maximum age
- 90 Years
Show eligibility criteria text
Inclusion Criteria: * hemianopia cases previously diagnosed accordingly by microperimetry and other tests as needed * 18-90 years old * ability to follow the visual and auditory stimuli and training instructions Exclusion Criteria: * previous or current treatment for low vision rehabilitation * ocular diseases * other serious clinical conditions not related to the hemianopia physiopathology * both eyes with media opacity that impairs microperimetry testing * lack of ability to perform the tests and training
References
Publications (5)
- BACKGROUNDKerkhoff G. Restorative and compensatory therapy approaches in cerebral blindness - a review. Restor Neurol Neurosci. 1999;15(2-3):255-71. PMID 12671237
- BACKGROUNDBansal S, Han E, Ciuffreda KJ. Use of yoked prisms in patients with acquired brain injury: a retrospective analysis. Brain Inj. 2014;28(11):1441-6. doi: 10.3109/02699052.2014.919527. Epub 2014 Jun 9. PMID 24911923
- BACKGROUNDNido MD, Markowitz SN. Vision rehabilitation with biofeedback training. Can J Ophthalmol. 2018 Jun;53(3):e83-e84. doi: 10.1016/j.jcjo.2017.11.003. Epub 2017 Dec 21. No abstract available. PMID 29784180
- BACKGROUNDDaibert-Nido M, Patino B, Markowitz M, Markowitz SN. Rehabilitation with biofeedback training in age-related macular degeneration for improving distance vision. Can J Ophthalmol. 2019 Jun;54(3):328-334. doi: 10.1016/j.jcjo.2018.10.016. Epub 2019 Apr 2. PMID 31109472
- BACKGROUNDDaibert-Nido M, Pyatova Y, Markowitz M, Markowitz SN. Visual outcomes of audio-luminous biofeedback training for a child with idiopathic nystagmus. Arq Bras Oftalmol. 2021 Mar-Apr;84(2):179-182. doi: 10.5935/0004-2749.20210026. PMID 33567015