How the brain coordinates both eyes
Cortical and Brainstem Contributions to Binocular Eye Movements
Looking at whether separate brain areas let each eye move on its own or move together, which could help people with eye alignment problems like strabismus.
Quick facts
| Grant type | R01 grant |
|---|---|
| Study type | NIH-funded research |
| Funding institution | Smith-Kettlewell Eye Research Institute NIH-funded |
| Lab location | 1 site (San Francisco, United States) |
| Project ID | NIH-11116893 on NIH RePORTER |
What this research studies
This project studies how cortical (thinking) and brainstem (reflex) parts of the brain work together to move the two eyes during everyday tasks by recording eye movements under different viewing conditions. Researchers will use tests such as covering one eye and tracking moving targets to see if one eye can move differently from the other and to map the timing and speed of those movements. The work challenges long-held ideas that the brain always issues a single combined command for both eyes and instead explores a two-part model of slow independent control and fast paired control. Results aim to improve how doctors measure and decide on treatments for eye alignment problems.
Who could benefit from this research
Good fit: People with strabismus or other binocular vision problems (and sometimes healthy volunteers for comparison) would be ideal candidates to participate.
Not a fit: People without binocular vision problems or those needing immediate surgical correction may not receive direct benefit from this work.
Why it matters
Potential benefit: If successful, the findings could lead to better diagnosis and treatment decisions for strabismus and other binocular vision disorders.
How similar studies have performed: Some smaller eye-movement studies hint that eyes can be controlled independently, but this combined cortical-plus-brainstem model is relatively new and not yet widely proven.
Where this research is happening
San Francisco, United States
- Smith-Kettlewell Eye Research Institute — San Francisco, United States (Active)
Researchers
- Principal investigator: Heinen, Stephen J — Smith-Kettlewell Eye Research Institute
- Study coordinator: Heinen, Stephen J
About this research
- This is an active NIH-funded research project — typically early-stage science, not a clinical trial accepting patient enrollment.
- Some NIH-funded labs run parallel clinical studies or seek volunteers for related work. To check, contact the principal investigator or institution listed above.
- For full project details, budget, and progress reports, visit the official NIH RePORTER page below.