1. A method of determining the location of the fovea within an image of an eye, said image being obtained with an optical coherence tomography (OCT) system, said OCT system including a light source generating a beam of light, a sample arm a reference arm and a detector for measuring light combined from the sample and reference arms, said method comprising the steps of: scanning the beam of light over a region of the eye; combining the light from the sample and reference arms; measuring the combined light to generate three dimensional image information; analyzing the image information to determine the location of the fovea within the image, said analyzing step being performed by segmenting the image information and assigning values across the image, said values corresponding to the integrated intensity as a function of depth, said segmenting being selected so that the integrated intensity reaches an extremum as the likelihood of that location being at or near the center of the fovea increases; and storing or displaying the determined foveal location.