title: Update on the Prevalence, Etiology, Diagnosis, and Monitoring of Normal-Tension Glaucoma.
abstract: Glaucoma is a leading cause of blindness worldwide. Normal-tension glaucoma (NTG) is a type of open-angle glaucoma with intraocular pressure measurements always 21 mm Hg or less. A controversy surrounding NTG is the question of whether it should be regarded as a disease within the spectrum of primary open-angle glaucoma or as a distinctive disease entity. Nonetheless, NTG does have distinctive features compared with primary open-angle glaucoma: intraocular pressure-independent risk factors for development of NTG, characteristic patterns of structural and functional damage, and a unique disease course. This review provides an overview and update on the current issues surrounding the prevalence, etiology, diagnosis, and monitoring of NTG.
authors.affiliation: From the Department of Ophthalmology, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea.
authors.forename: Ko Eun
authors.initials: KE
authors.lastname: Kim
authors.forename: Ki-Ho
authors.initials: KH
authors.lastname: Park
mesh_terms: D001794:Blood Pressure / Q000502:physiology; D019468:Disease Management; D018450:Disease Progression; D006801:Humans; D007429:Intraocular Pressure / Q000502:physiology; D057066:Low Tension Glaucoma / Q000175:diagnosis / Q000453:epidemiology / Q000209:etiology / Q000503:physiopathology; D015995:Prevalence; D012307:Risk Factors; D041623:Tomography, Optical Coherence