An electronic device comprising a processor utility configured and operable for processing image data, determining whether an abnormality exists in an image of a subject's eye, and generating corresponding output data, said processor utility comprising: a first processor configured and operable for selecting in the image data an image comprising a region of interest including predetermined eye features of at least one of two eyes of the subject, the first processor further configured and operable for pre-processing the image to determine whether it is suitable for image processing and for providing an indication of the determined suitability of the image； an eye feature detection utility configured and operable for applying an image processing algorithm to a suitable image for determining one or more parameters of the eye features from a set of predetermined parameters； and an eye condition identifier utility configured and operable for processing and analyzing said one or more parameters and generating data indicative of whether an abnormality exists in the image.
