Related Experiment Video
Updated: Feb 13, 2026

Eye Movement Monitoring of Memory
Published on: August 15, 2010
Fixational eye movement: a negligible source of dynamic aberration
Pedro Mecê1,2, Jessica Jarosz1,2, Jean-Marc Conan1
1ONERA - the French Aerospace Lab, Châtillon, France.
Abstract:
To evaluate the contribution of fixational eye movements to dynamic aberration, 50 healthy eyes were examined with an original custom-built Shack-Hartmann aberrometer, running at a temporal frequency of 236Hz, with 22 lenslets across a 5mm pupil, synchronized with a 236Hz pupil tracker. A comparison of the dynamic behavior of the first 21 Zernike modes (starting from defocus) with and without digital pupil stabilization, on a 3.4s sequence between blinks, showed that the contribution of fixational eye movements to dynamic aberration is negligible. Therefore we highlighted the fact that a pupil tracker coupled to an Adaptive Optics Ophthalmoscope is not essential to achieve diffraction-limited resolution.
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