title: Optic disc findings in normal tension glaucoma.
abstract: One hundred thirty stereo photographs of optic discs in patients with normal tension glaucoma (NTG) were reviewed in order to identify characteristics of the three following types of NTG: focal ischemic, senile sclerotic, and generalized cup enlargement. Twenty patients in each group were selected. Focal ischemic patients were more frequently women, had a higher incidence of migraine, a relatively smaller disc size, and localized superior scotoma that often threatened fixation. Senile sclerotic patients were generally elderly, had a higher incidence of surgery under general anesthesia, had more ischemic heart disease or systemic hypertension, had a small rim area, and also had extensive peripapillary atrophy as well as combined diffuse and localized visual field defects. Generalized cup enlargement patients were younger, had a relatively larger disc size and a greater incidence of purely diffuse visual field loss. Results of our study suggest that the different characteristics of the groups are related to pathogenic mechanisms specific to each group.
authors.affiliation: Department of Ophthalmology, Nihon University School of Medicine, Tokyo, Japan.
authors.forename: Y
authors.initials: Y
authors.lastname: Yamazaki
authors.forename: F
authors.initials: F
authors.lastname: Hayamizu
authors.forename: S
authors.initials: S
authors.lastname: Miyamoto
authors.forename: T
authors.initials: T
authors.lastname: Nakagami
authors.forename: C
authors.initials: C
authors.lastname: Tanaka
authors.forename: S
authors.initials: S
authors.lastname: Inui
mesh_terms: D000368:Aged; D005260:Female; D005902:Glaucoma, Open-Angle / Q000150:complications / Q000473:pathology* / Q000503:physiopathology; D006801:Humans; D007429:Intraocular Pressure; D008297:Male; D008875:Middle Aged; D009898:Optic Disk / Q000473:pathology*; D009901:Optic Nerve Diseases / Q000209:etiology / Q000473:pathology / Q000503:physiopathology; D010781:Photography; D012307:Risk Factors; D014794:Visual Fields