scholarly journals Mechanical Deformation of Human Optic Nerve Head and Peripapillary Tissue in Response to Acute IOP Elevation

2019 ◽  
Vol 60 (4) ◽  
pp. 913 ◽  
Author(s):  
Yanhui Ma ◽  
Elias Pavlatos ◽  
Keyton Clayson ◽  
Xueliang Pan ◽  
Sunny Kwok ◽  
...  
Keyword(s):  
Optic Nerve ◽  
Optic Nerve Head ◽  
Mechanical Deformation ◽  
Iop Elevation ◽  
Human Optic Nerve

scholarly journals Microvascular Density Is Associated With Retinal Ganglion Cell Axonal Volume in the Laminar Compartments of the Human Optic Nerve Head

2018 ◽  
Vol 59 (3) ◽  
pp. 1562 ◽  
Author(s):  
Min H. Kang ◽  
Mengchen Suo ◽  
Chandrakumar Balaratnasingam ◽  
Paula K. Yu ◽  
William H. Morgan ◽  
...  
Keyword(s):  
Optic Nerve ◽  
Ganglion Cell ◽  
Retinal Ganglion Cell ◽  
Optic Nerve Head ◽  
Microvascular Density ◽  
Retinal Ganglion ◽  
Human Optic Nerve

OPTIC NERVE HEAD TOPOGRAPHY FOLLOWING TRANSIENT IOP ELEVATION IN NORMOTENSIVE SUBJECTS

1994 ◽  
Vol 71 (Supplement) ◽  
pp. 140
Author(s):  
John V. Lovasik ◽  
Hélène Kergoat ◽  
Robert Wojciechowski ◽  
Pierre Forcier ◽  
Etty Bitton
Keyword(s):  
Optic Nerve ◽  
Optic Nerve Head ◽  
Normotensive Subjects ◽  
Iop Elevation ◽  
Optic Nerve Head Topography

Variations in the Blood Flow of the Human Optic Nerve Head

1997 ◽  
Vol 7 (4) ◽  
pp. 364-369 ◽  
Author(s):  
R. Osuský ◽  
A. Schoetzau ◽  
J. Flammer
Keyword(s):  
Blood Flow ◽  
Optic Nerve ◽  
Optic Nerve Head ◽  
Continuous Measurement ◽  
The Body ◽  
Flow Volume ◽  
Frequency Range ◽  
Flow Fluctuations ◽  
Human Optic Nerve ◽  
Doppler Flowmeter

Blood flow in various tissues of the body shows spontaneous variations. The purpose of this study was to analyze variations over time in the blood flow of the optic nerve head. Blood flow was measured by the laser Doppler flowmeter (LDF) in 12 healthy volunteers, and analyzed by spectral Fourier analysis. The LDF technique allows continuous measurement of flow, volume, and velocity in the microcirculation of the optic nerve head. We found variations expressed in cycles per minute (c/min) at frequencies characteristic of vasomotion (<10 c/min) of breathing, and of cardiac pulsation. Oscillations at frequency <10 c/min predominated in volume in all subjects and in flow in all but one. Variations in velocity of 60-90 c/min were identified in 10 of the 12 volunters. Oscillations in the range of breathing frequency made the smallest contribution to changes in blood flow. Fluctuations in the frequency range of 5 c/min and lower were observed most frequently, and the majority of subjects showed fluctuations of several frequencies. Our results provide evidence that blood flow in the human optic nerve head presents some characteristics already known from the general physiology of the microcirculation.

Acute effects of cigarette smoking on tissue circulation in human optic nerve head and choroid-retina

Ophthalmology ◽  
1999 ◽  
Vol 106 (3) ◽  
pp. 564-569 ◽  
Author(s):  
Yasuhiro Tamaki ◽  
Makoto Araie ◽  
Miyuki Nagahara ◽  
Ken Tomita
Keyword(s):  
Optic Nerve ◽  
Cigarette Smoking ◽  
Optic Nerve Head ◽  
Acute Effects ◽  
Human Optic Nerve ◽  
Tissue Circulation

Reproducibility of Laser Doppler Flowmetry in the Human Optic Nerve Head

1997 ◽  
Vol 6 (4) ◽  
pp. 212???216 ◽  
Author(s):  
Karen M. Joos ◽  
Lutz E. Pillunat ◽  
Robert W. Knighton ◽  
Douglas R. Anderson ◽  
William J. Feuer
Keyword(s):  
Optic Nerve ◽  
Laser Doppler Flowmetry ◽  
Optic Nerve Head ◽  
Laser Doppler ◽  
Doppler Flowmetry ◽  
Human Optic Nerve

scholarly journals The acute effects of cigarette smoking on human optic nerve head and posterior fundus circulation in light smokers

Eye ◽  
2000 ◽  
Vol 14 (1) ◽  
pp. 67-72 ◽  
Author(s):  
Yasuhiro Tamaki ◽  
Makoto Araie ◽  
Miyuki Nagahara ◽  
Ken Tomita ◽  
Masao Matsubara
Keyword(s):  
Optic Nerve ◽  
Cigarette Smoking ◽  
Optic Nerve Head ◽  
Acute Effects ◽  
Human Optic Nerve

Hypoxia augments TNF-α-mediated endothelin-1 release and cell proliferation in human optic nerve head astrocytes

2004 ◽  
Vol 318 (3) ◽  
pp. 642-648 ◽  
Author(s):  
Devashish Desai ◽  
Shaoqing He ◽  
Thomas Yorio ◽  
Raghu R Krishnamoorthy ◽  
Ganesh Prasanna
Keyword(s):  
Cell Proliferation ◽  
Optic Nerve ◽  
Optic Nerve Head ◽  
Endothelin 1 ◽  
Tnf Α ◽  
Human Optic Nerve
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