Your Eyes Are Talking to Your Nervous System
Most people think about their eyes as the tools they use to see. What they don’t usually think about is that their eyes are part of their brain. Literally. In utero, the eyes separate from the same brain tissue that becomes everything else. The connection never goes away.
Most people think about their eyes as the tools they use to see. What they don’t usually think about is that their eyes are part of their brain. Literally. In utero, the eyes separate from the same brain tissue that becomes everything else. The connection never goes away.
My friend and colleague, Lillian Giocondo, turned me on to following the Biology of Trauma podcast, and a recent episode with neuro-optometrist Dr. Bryce Appelbaum grabbed my attention. Not because the information was fringe or surprising exactly, but because it put language to something we work with in Somatic Experiencing all the time.
In SE, we pay a lot of attention to the eyes.
We’ll sometimes ask a client to let their gaze soften. To notice what’s in their peripheral field without turning their head. To slowly move their eyes in different directions and notice what happens in the body. Or even to track our fingers and notice when the eye sight glitches. These aren’t quirky add-ons to the work. They’re rooted in the same biology Dr. Appelbaum describes.
Two-thirds of the neurons entering the brain come through the eyes. That’s not a small number. Your nervous system is constantly reading visual input to decide whether you’re safe or in danger. And one of the clearest signals it looks for is whether your peripheral vision is open.
When the nervous system shifts into fight or flight, peripheral vision collapses. The world narrows. You stop seeing what’s beside you and start locking onto what’s in front of you. This is your threat response working exactly as designed. The problem is that for many people who carry stored trauma or chronic stress, that narrowing becomes the default. The tunnel becomes baseline.
Dr. Appelbaum describes this as the body adapting to a tunneled state. The brain stops expecting wide vision. It reorganizes. And over time, people describe feeling like they’re looking through paper towel rolls. Which is just their eyes staying in a survival state.
In SE, one type of eye work we do is called, “orienting.” When a client can slowly, voluntarily move their eyes around the room and allow their eyes stop and focus on what they see, that’s the nervous system checking in with reality and finding it safe. The body follows. Shoulders often drop. Breath often comes in a little more easily.
Dr. Appelbaum introduces three simple exercises in the episode: peripheral pointing, eye push-ups, and eye stretches. Peripheral pointing involves fixing your gaze on a point in the room and then noticing, without moving your eyes, what else is out there. Pointing to it. Then checking. It rebuilds the body’s sense of being in space rather than locked into a single threat point.
These exercises build the same capacity we’re reaching for in SE. The ability to be in a body that can take in more of the world, to have more capacity not just tolerance. A nervous system that isn’t white-knuckling.
If you’ve ever wondered why we slow things down in trauma therapy, why we ask what you notice in your body or what catches your eye in the room, or to stop and feel into your eyes, this episode offers one clear answer. The eyes are not passive recorders. They’re active participants in whether you feel okay right now.