1. A method for spatially mapping three-dimensional (3-D) voxel data associated with a three-dimensional optical coherence tomography (3-D OCT) scan and pixel data associated with a secondary two-dimensional (2-D) image, comprising: generating a 2-D composite image from said 3-D voxel data, wherein said 2-D composite image is different from said secondary 2-D image; and spatially mapping said 2-D composite image and said secondary 2-D image.