Saccades are under voluntary control. They're the fast movements when you switch where you look. There are microsaccades that are similar but don't seem to hav

Saccades are under voluntary control. They're the fast movements when you switch where you look. There are microsaccades that are similar but don't seem to have any target we understand. In general these, and other microeyemovements like tremors and drifts, are not very well understood, and even their existence can be somewhat quoestioned. Low pass filters are somewhat problematic for eye movements because the altenating slow and fast movements. As a shameless plug here's what I think is still the state-of-the-art method for filtering eye movement data: https://www.nature.com/articles/s41598-017-17983-x https://www.nature.com/articles/s41598-017-17983-x