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Normal-Tension Glaucoma

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Clinical Glaucoma Care

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Abstract

In this well-illustrated chapter, the historical definition and understanding of normal-tension glaucoma (NTG) and its epidemiology are reviewed. An overview of the IOP-related and optic-nerve-related risk factors for NTG is presented. Patterns of disc and visual field damage and progression seen in NTG are discussed, with many clinical examples presented. The significance of optic disc hemorrhages and peripapillary atrophy in NTG is explored. The evidence for the relationship of well-known systemic risk factors, such as migraine, and newly identified risk factors, such as obstructive sleep apnea to NTG, is presented. The appropriate diagnostic evaluation for NTG is outlined. Current guidelines and alternatives for medical, laser (argon and diode LTP and SLT), and surgical IOP-lowering therapy in NTG are discussed. Evidence for the value of non-IOP-lowering therapies, such as the use of calcium channel blockers in NTG, is summarized.

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  1. Department of Ophthalmology, University of Virginia Health System, 800715, Charlottesville, VA, 22908-0715, USA

    Bruce E. Prum Jr. MD

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  1. Rocky Visa University, Littleton, Colorado, USA

    John R. Samples

  2. Visual Health Center, Palm Springs, Florida, USA

    Paul N. Schacknow

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Prum, B.E. (2014). Normal-Tension Glaucoma. In: Samples, J., Schacknow, P. (eds) Clinical Glaucoma Care. Springer, New York, NY. https://doi.org/10.1007/978-1-4614-4172-4_13

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