1. A method for optical coherence elastography of a tissue of an eye, the method comprising: introducing at least a portion of a probe into a vitreous humor of the eye, the portion of the probe comprising a vibration element; generating time resolved images of the tissue of the eye, the tissue being located more posterior than the vibration element of the probe, wherein the time resolved images of the tissue are generated by optical coherence tomography; exciting the vibration element to ultrasonic vibrations making the tissue vibrate or oscillate; measuring a displacement of the tissue in the time resolved images; and calculating elasticity values of the tissue from the displacement.