约翰斯·霍布金斯大学的研究人员称,慢性开角型青光眼的发展过程可以是极其隐匿的。他们发现,在眼内压增高表明已有损害或视野明显缩小可确诊为青光眼之前,患者视神经乳头上的神经原已约有半数缺如。视神经乳头上共有100万个神经原或更多些。在担任国际演讲和纽约医学院临床教授同时开业的纽约市知名眼科专家G Peter Halberg教授说:“我们都知道‘高眼压’是一种人为的临床指征。根本不会有数十年前认为的那样,有些人眼压天然地较高。可是迄今还有人相信这一点。他们认为,如果没有其它明显病变,眼压必须达到28—30,才予以处理。实际上,眼 Researchers at Johns Hopkins University said that the development of chronic open-angle glaucoma can be extremely hideous. They found that about half of the neurons in the optic nerve head of the patient had been missing before the intraocular pressure was increased to indicate damage or a marked reduction in visual field was diagnosed as glaucoma. There are 1 million neurons or more on the optic nerve head. Professor G Peter Halberg, a renowned New York City ophthalmologist who also serves as an international lecturer and clinical professor at the New York Medical College, said: "We all know that ’high intraocular pressure’ is a man-made clinical indication that there are not decades Some believe that IOP is naturally higher, but so far others believe it, and they believe that intraocular pressure must reach 28-30 for no apparent change, and in fact, the eye