The present invention relates to a method of processing acquired ophthalmic image data comprising: providing an imaging signal produced by a imaging device, the imaging signal having a center wavelength of at least 1μm or being a polarization-sensitive optical coherence tomography (PS-OCT) signal detecting intensities of the imaging signal as the imaging signal is backscattered by each of a plurality of tissue layers in a subjects eye for a plurality of axial scans determining a ratio of the intensities of the backscattered imaging signals for each of the plurality of axial scans, the ratio being the intensity of a first portion of the backscattered imaging signal with respect to the intensity of a second portion of the backscattered imaging identifying areas of the subjects eye based at least in part on the determined ratio.
