  Eye movements are commonly seen as an obstacle to high-resolution ophthalmic
imaging. In this context we study the natural axial movements of the in vivo
human eye and show that they can be used to modulate the optical phase and
retrieve tomographic images via time-domain full-field optical coherence
tomography (TD-FF-OCT). This approach opens a path to a simplified ophthalmic
TD-FF-OCT device, operating without the usual piezo motor-camera
synchronization. The device demonstrates in vivo human corneal images under the
different image retrieval schemes (2-phase and 4-phase) and different exposure
times (3.5 ms, 10 ms, 20 ms). Data on eye movements, acquired with a 100 kHz
spectral-domain OCT with axial eye tracking, are used to study the influence of
ocular motion on the probability of capturing high-signal tomographic images
without phase washout. The optimal combinations of camera acquisition speed and
amplitude of piezo modulation are proposed and discussed.
