1. A method comprising: imaging a fundus of an eye to obtain a plurality of fundus images; imaging the fundus to obtain a plurality of tomographic images; determining a fundus movement of the eyes based on the plurality of fundus image; tracking the determined fundus movement of the fundus; determining the number and positions of tomographic images imaged during a time including a time during which the fundus movement cannot be tracked; re-imaging the determined number of tomographic images at the determined positions.