Glaucomatous Optic Neuropathy and Optic Disc Drusen
Generally speaking, specific signs are critical to the diagnoses of some diseases. For example, bilateral papilledema is associated with intracranial hypertension. Enlargement of the optic disc cupping and neuroretinal rim thinning are important signs of primary open-angle glaucoma (POAG). However, we shall question the current diagnosis or go through the differential diagnoses when the typical signs that ought to be shown are not observed. The analysis process for a POAG case is presented as follows.