If you’ve been struggling with balance problems, you’ve probably been asked the same tired questions and maybe even told your MRI came back normal. But here’s what most people don’t realize: a normal MRI doesn’t always mean your brain is functioning normally. At Nexus Neuro in Carmel, Indiana, we use a powerful diagnostic tool called video oculography (VOG) to look deeper and find answers that traditional imaging simply can’t provide.

Balance Problems Are Not All the Same

When a patient comes to us with balance issues, the first thing we need to understand is why they’re struggling. And the answer isn’t always straightforward.

There are two very different root causes of balance problems:

1. Peripheral balance problems — where the issue originates in the body itself, such as reduced sensation or feeling in the feet. When someone can’t feel the ground beneath them, their body loses an important source of information it needs to stay upright.

2. Central balance problems — where the issue originates in the brain’s own control centers. These are the regions responsible for processing sensory input, coordinating movement, and maintaining stability.

Why does the distinction matter? Because the treatment approach is completely different. Treating a peripheral problem when the real issue is in the brain — or vice versa — is a path to frustration and no results. Accurate identification is everything.

This is exactly where video oculography becomes a game-changer.

What Is Video Oculography?

Video oculography, often referred to as VOG, is a non-invasive diagnostic technology that uses a specialized pair of goggles to track and measure how your eyes move. During the test, a patient wears the goggles while looking at different visual targets, and the system records eye movement data in real time.

It sounds simple, but what those eye movements reveal is anything but. Your eyes are directly connected to some of the most critical networks in your brain. The way they move, how quickly, how accurately, how smoothly, each reflect the health and function of those networks with remarkable precision.

As Dr. Matt Schulke explains: “Eye movements in video oculography are a very good non-invasive measure of brain function and dysfunction.”

Why Eye Movements Reflect Brain Health

The eyes don’t move on their own. Every shift of the gaze, every tracking movement, every reflexive response is driven by a complex web of brain activity involving the brainstem, cerebellum, frontal lobes, and vestibular system. When any of those areas are compromised, it shows up in how the eyes behave.

This is why VOG is used in the evaluation of a wide range of neurological conditions, including:

• Concussion and traumatic brain injury (TBI)
• Parkinson’s disease and other movement disorders
• Balance disorders and dizziness
• Vertigo
• Headaches and migraines
• Neurodevelopmental disorders

The technology allows clinicians to pinpoint which specific brain networks are struggling, giving a much clearer map of where dysfunction is actually happening.

The Problem with MRI Alone

Here’s something that surprises many patients: MRI is not the gold standard for detecting brain dysfunction.

MRI is excellent at detecting structural changes like tumors, lesions, and bleeding. But many neurological conditions don’t change the structure of the brain. They disrupt how it functions. And that’s an important distinction.

Someone can have a severe concussion and walk away with a completely normal MRI. Someone in the early stages of Parkinson’s disease can have no visible changes on imaging at all. That doesn’t mean nothing is wrong, it means the right tool isn’t being used to look for it.

VOG fills that gap. Because it measures function rather than structure, it can detect patterns of dysfunction that imaging simply isn’t designed to catch. It maps the brain’s network connections and helps identify exactly where a problem is originating, giving providers like Dr. Schulke the information needed to build a targeted, effective treatment plan.

What to Expect During a VOG Assessment at Nexus Neuro

The test itself is straightforward and completely painless. You’ll wear a pair of goggles equipped with infrared cameras that track your eye movements as you look at various targets. The process is non-invasive and typically takes place as part of a broader neurological assessment.

The data collected during your VOG test gives our team an objective look at how your brain’s key networks are communicating and where the breakdown may be occurring. Combined with a full functional neurological evaluation, this information helps us build a care plan that’s specific to you, not just your symptom list.

Answers That Go Beyond “Your MRI Is Normal”

If you’ve been told your imaging is normal but you’re still struggling with balance, dizziness, coordination issues, or other neurological symptoms, you deserve a more complete picture. Video oculography is one of the most sensitive tools available for looking at actual brain function, and it’s part of what sets functional neurology apart from a conventional approach.

At Nexus Neuro, we serve patients throughout Carmel, Westfield, Zionsville, Fishers, Noblesville, and the greater Indianapolis area who are looking for answers and a path forward.

Ready to find out what’s really going on? Schedule your assessment today.