Comparison of Optic Ne rve Head Blood Flow in Normal-tension Glaucoma with Asymmetric Visual Field Loss.

Park, Ki Ho

Original Article

Journal of the Korean Ophthalmological Society 1999;40(5):1318-1323.
Published online May 1, 1999.

Comparison of Optic Ne rve Head Blood Flow in Normal-tension Glaucoma with Asymmetric Visual Field Loss.

Ki Ho Park

Department of Ophthalmology, College of Medicine, Seoul National University.

양안 비대칭 시야장애를 보이는 정상안압녹내장환자의 좌우안 시신경유두 혈류의 비교

박기호(Ki Ho Park)

Abstract

To evaluate intraindividual, interocular differences in blood flow of the optic nerve head in normal-tension glaucoma(NTG)patients with interocular asymmetric visual field loss, thirty-eight eyes of 19 NTG patients(mean age+/-SD, 56.1+/-15.0 years)with interocular asymmetric visual field loss of >3dB in the mean deviation or corrected pattern standard deviation were measured for the blood flow parameters(Volume, Velocity, Flow)at the temporal rim of the optic nerve head using scanning laser Doppler flowmetry(Heidelberg Retina Flowmeter or HRF). Measurements for peripapillary atrophy(area of zone beta)were performed using scanning laser tomography (Heidelberg Retina Tomograph). Visual field defects were evaluated by automated static threshold perimetry. The mean+/-standard deviation of the mean defect of the visual field indices was -1.38+/-3.02dB for the less affected eyes, and -6.23+/-3.84dB for the more affected eyes. All blood flow parameters were significantly smaller in the less affected eyes(0.004

Key Words: Asymmetric visual field loss;Blood flow;Normal-tension glaucoma;Optic nerve head;Peripapillary atrophy