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长期以来,眼压升高是医学界公认的青光眼的主要症状。然而,这个概念近来受到了一种特殊青光眼——低压性青光眼的严重挑战。 所谓低压性青光眼,即眼压不高于正常水平(2.3kpa),即使采用各种青光眼激发试验,眼压还是安然不高或略有下降。但眼底都出现视乳头凹陷扩大,青光眼性视神经萎缩,视力明显下降,并有典型的青光眼病视野缺损。本病确切原因尚未搞清,但发现同一些全身病有密切关系。如全身及局部有出血倾向,低血压,以及其他一些血液动力学危象。这些情况均可导致视乳头血液灌注不良,使视乳头因营养不足而萎缩和视野发生
For a long time, elevated intraocular pressure is the medical profession recognized the main symptoms of glaucoma. However, this concept has recently been challenged by a special form of glaucoma-low pressure glaucoma. The so-called low pressure glaucoma, intraocular pressure is not higher than the normal level (2.3kpa), even with a variety of glaucoma challenge test, intraocular pressure is safe or slightly safe or slightly decreased. However, the optic disc appears fundus depression, glaucomatous optic atrophy, visual acuity decreased significantly, and the typical glaucoma visual field defects. The exact cause of the disease has not yet figured out, but found that some systemic diseases are closely related. Such as systemic and local bleeding tendency, hypotension, and some other hemodynamic crisis. These conditions can lead to poor blood perfusion optic disc, the optic disc due to malnutrition and shrinkage of vision occurred