Glaucoma, also known as glaucoma, refers to many diseases that can damage the optic nerve not only permanently, but also irreparably. First affected are the nerve fibers in the optic disc (papilla nervi optici), the optic nerve head. The cause is found in a strongly increased intraocular pressure. On the one hand, this can damage the sensitive nerves and, on the other hand, impede their blood supply. Both lead to the nerves dying.
Because vision does not deteriorate until very late after damage has occurred, not only the retina but also the optic disc must be checked regularly. This is the only chance for glaucoma to be detected at an early stage and for a targeted therapy to be initiated in order to slow down its progression.
Glaucoma often progresses without symptoms and without pain. Only when the optic nerve is already damaged do the first impairments appear. And these are currently still irreparable.
Those affected therefore do not notice the progression because only the peripheral areas are affected at first. In addition, the healthier eye can compensate for the deficits to a certain extent.