1. A computer-implemented method for generating or analyzing fundus drawings, the method comprising: receiving, by a computing device, data indicative of a fundus image; identifying, by the computing device, one or more image features indicative of a condition or a label associated with the fundus image; generating, by the computing device, a fundus drawing based on the one or more image features; associating, by the computing device, a classifier with the identified image features; adding, by the computing device, the classifier to a collection of classifiers; determining, by the computing device, recommended labels for the fundus drawing or the fundus image based on previously associated labels, the associated classifier, and the collection of classifiers; designating at least one of the recommended labels as a global label or a local label, wherein a global label identifies an aspect of the fundus drawing or the fundus image as a whole and a local label corresponds to a feature at a particular location on the fundus image or fundus drawing; and in response to designating that the at least one of the recommended labels as a local label, performing a co-occurrence analysis to compute a location of the at least one of the recommended labels in relation to another label.