1. A method for generating a partial fundus image from a 3-D intensity data set corresponding to the distribution of reflection sites within the eye acquired by scanning the eye with an optical coherence tomographic (OCT) device, said method comprising the steps of: obtaining a 3-D intensity data set corresponding to the distribution of reflection sites within the eye using an optical coherence tomographic (OCT) device; segmenting the intensity data to define a volume as a function of a selected depth within the eye and a selected range from that depth; processing the segmented intensity data along a Z-axis extending between the selected depth and the selected range in order to assign a single representative intensity value at each of a plurality of X and Y positions; and displaying a 2-D image of the assigned intensity values.