A test for pressure inside the eye, or intraocular pressure, is one way to screen for the disease, but people with normalpressure can still have glaucoma.
But there has been growing awareness that a large percentage of glaucoma patients, perhaps more than half, have normal or near-normal intraocular pressure.
但是人们日益认识到,大部分青光眼患者(可能超半数)眼内压正常或接近正常。
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According to the intraocular pressure (IOP), POAG can be grouped into high tension glaucoma (HTG) and normal tension glaucoma (NTG).