![]() This test will help a doctor determine whether your vision has been affected by glaucoma. Perimetry is a visual field test that produces a map of your complete field of vision. If your intraocular pressure (IOP) is not within the normal range or if the optic nerve looks unusual, your doctor may ask you to have one or two more glaucoma exams: perimetry and gonioscopy. The doctor will then use a small device with a light on the end to light and magnify the optic nerve. Eye drops are used to dilate the pupil so that the doctor can see through your eye to examine the shape and color of the optic nerve. This diagnostic procedure helps the doctor examine your optic nerve for glaucoma damage. However, some people can have glaucoma at pressures between 12 -21 mm Hg. ![]() Most glaucoma cases are diagnosed with pressure exceeding 20 mm Hg. The range for normal pressure is 12-21 mm Hg (“mm Hg” refers to millimeters of mercury, a scale used to record eye pressure). A small amount of pressure is applied to the eye by a tiny device or by a warm puff of air. Then a doctor or technician uses a device called a tonometer to measure the inner pressure of the eye. During tonometry, eye drops are used to numb the eye. Tonometry measures the pressure within your eye. Regular glaucoma check-ups include two routine eye tests: tonometry and ophthalmoscopy. The angle in the eye where the iris meets the cornea To be safe and accurate, five factors should be checked before making a glaucoma diagnosis: Examining… ![]() If you have high risk factors for glaucoma, diabetes, high blood pressure, or a family history of glaucoma, you should see an eye doctor now to determine how often to have eye exams. Your eye doctor will tell you how often to have follow-up exams based on the results of this screening. Early signs of eye disease and changes in vision may start to occur at this age. You should get a baseline eye screening at age 40. It is important to have your eyes examined regularly. A complete eye exam includes five common tests to detect glaucoma. ![]()
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