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Perimetry is the systematic measurement of visual field function (the total area where objects can be seen in the peripheral vision while the eye is focused on a central point). The two most commonly used types of perimetry are Goldmann kinetic perimetry and threshold static automated perimetry. A visual field test (perimetry) will detect loss of peripheral vision and provide a map of that loss which will be helpful in diagnosing the cause of the loss. The highly trained perimetrists at the University of Iowa measure peripheral vision to evaluate glaucoma, neurological diseases, and retinal diseases. They employ manual techniques (Goldmann perimetry) and computer-driven automated techniques (Humphrey and Octopus perimetry). In addition they use a laser scanning device to analyze the structure of the optic nerve (Heidelberg Retinal Tomography). Matthew J. Thurtell, MBBS, MSc, is the director of this service. Learn More about Past and Present Perimetry Methods at the IPS site.
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