This study explores a balance-training exercise called *incremental vestibulo-ocular reflex adaptation* (IVA) to see if it's safe and helpful for adults with vision problems, with or without vestibular (inner-ear balance) issues. Vestibular refers to the system in our ears that helps with balance. The study has two main questions: does IVA cause only mild, temporary symptoms, and can it improve eye-movement reflexes, balance, and walking? The study will compare adults with only vision problems to those with both vision and vestibular issues.
Participants will complete symptom ratings and tests on how well their balance and walking improve. They will also undergo vestibular reflex tests to see the effects of IVA. IVA is a 15-minute, non-invasive exercise involving a moving laser target that helps improve reflexes by adjusting to head movements.
- Participants will attend two study visits.
- The study is for adults aged 18 to 60.
- Participants need to provide informed consent before joining.
People with neurologic conditions, drug abuse, or major psychiatric disorders cannot participate.