08/26/2026
What you are seeing here is not about pupil size. It is about eye position and scleral exposure.
When the eyes sit higher or lower in the orbit and white sclera becomes visible above or below the iris, it reflects altered brainstem and midbrain control of the extraocular muscles.
These muscles are governed by automatic brainstem circuits that coordinate eye position with threat detection, arousal, and motor readiness.
Excess scleral show is commonly associated with a defensive autonomic state, where the nervous system is biased toward vigilance rather than regulation.
The same brainstem circuits that control eyelid tone also control posture against gravity. That is why facial tone and posture almost always change together.
This is not fixed by trying to relax your eyes or forcing better posture. It changes when the nervous system receives clearer input and reorganizes automatically.
Make sure to download the 🧠👀 Brainpro app to retrain the visual pathways that shape nervous system regulation, head position, and posture. 👉ink in bio 👆 brainpro.co