Adult patients with visual impairment, defined as those with visual acuity worse than 20/70 transcranial-focused ultrasound, ultrasound stimulation, visual cortex stimulation, blindness
Conditions
Interventions
Transcranial focused ultrasound is a low-intensity ultrasound technique used for brain stimulation.,Participants in this group receive a procedure or device that appears identical to the actual treatm
Brain stimulation,Control
Sponsors
Faculty of Medicine, Ramathibodi Hospital, Mahidol University
Ramathibodi Foundation
Eligibility
Sex/Gender
All
Age
18 Years to 90 Years
Inclusion criteria
Inclusion criteria: 1. Adults age more than 18 years old. 2. Visual impairment, defined as those with visual acuity worse than 20/70. 3. Documented injury to the anterior visual pathway, including any pathology within the orbit, such as retina, optic nerve, and optic chiasm. 4. Having unilateral or bilateral involvement. 5. Brain MRI is available from routine clinical assessments. 6. Willing to participate in this study and sign an informed consent form.
Exclusion criteria
Exclusion criteria: 1. Having been diagnosed with dementia, encephalopathy, or alteration of consciousness. 2. Attention deficit includes inattention (difficulty maintaining focus), hyperactivity (excessive movement inappropriate to the setting), and impulsivity (acting hastily without consideration), assessed through clinical neurological examinations. 3. Having been prescribed the medications with a sedation effect such as benzodiazepine, high dose phenobarbital.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Visual acuity 30 minutes Snellen chart | — |
Secondary
| Measure | Time frame |
|---|---|
| Form perception 30 minutes Postitive or negative | — |
Countries
Thailand
Contacts
Public ContactPanitha Jindahra
Faculty of Medicine, Ramathibodi Hospital, Mahidol University
Outcome results
None listed