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[Differential diagnosis of blurred optic disks by fluorescein angiography (author's transl)].

Fluorescein angiography has been underrated as an exploratory tool in the diagnosis of blurred optic disks. The ten cases presented here had blurred disks of diverse etiology; fluorescein angiography helped in the differential diagnosis and therapeutic approach. Irrigation of the disk, type, magnitude and location of dye leakage, as well as objectivation of peripapillary and retinal vascular characteristics all help to explain the pathogenic mechanisms leading to different types of optic disk edema. Although it is known tha papilledema due to increased intracranial pressure can not be differentiated from locally caused blurring of disks, there remain a number of mechanical, ischemic and inflammatory conditions that can be diagnosed by means of fluorescein angiography. Thus, optic neuritis, ischemic optic neuropathy, papillovasculitis and juxtapapillary chorioretinitis are some of the diseases in which chorioretinitis are some of the diseases in which angiography may help in differential diagnosis and lead to adequate therapeutic approaches.