September Glaucoma C. Stephen Foster, M.D. Glaucoma.
Some misconceptions exist regarding glaucoma.
One thing that most of the public does understand, however, is that glaucoma is serious and is potentially blinding. Many people, however, harbor the misconception that glaucoma produces pain. In most instances, this imbalance of forces occurs as a result of pressure in the eye that is too high. The upper limits of normal is typically considered as 21 millimeters of mercury. Evidence of optic nerve damage, either through inspection of the nerve or through demonstration of abnormalities on visual field testing, is then defined as glaucoma.