[Glaucomatous optic neuropathy].

The pathogenic mechanisms of the glaucomatous optical neuropathy in the open angle glaucoma are incompletely elucidated, being a subject of current research. The alteration of the optic nerve in glaucoma reveals either an ischaemic cause, either a mechanical compression; other theories imply the alteration of the axo-plasmic flow, or freeing of some X-hystothonical substances, or the initial alteration of the lamina criblata. Modern examination of the optical disk in glaucoma, using computer-aided planimetry methods and papillary circulation studying by Doppler laser velocimetry, fluorescein angiography a.s.o., is not part of the current practice of examination. Yet, it is extensively used in scientific research, for revealing of new physiopathological aspects.