Large vessel area of the optic nerve head, measured with laser speckle flowgraphy, is significantly reduced in eyes with preperimetric glaucoma

2015 ◽  
Vol 43 (9) ◽  
pp. 841-843 ◽  
Author(s):  
Naoki Kiyota ◽  
Yukihiro Shiga ◽  
Hidetoshi Takahashi ◽  
Toru Nakazawa
Keyword(s):  
Optic Nerve ◽  
Optic Nerve Head ◽  
Laser Speckle ◽  
Large Vessel ◽  
Laser Speckle Flowgraphy ◽  
Vessel Area ◽  
Preperimetric Glaucoma

Optic Nerve Head Blood Flow, as Measured by Laser Speckle Flowgraphy, Is Significantly Reduced in Preperimetric Glaucoma

2016 ◽  
Vol 41 (11) ◽  
pp. 1447-1453 ◽  
Author(s):  
Yukihiro Shiga ◽  
Hiroshi Kunikata ◽  
Naoko Aizawa ◽  
Naoki Kiyota ◽  
Yukiko Maiya ◽  
...  
Keyword(s):  
Blood Flow ◽  
Optic Nerve ◽  
Optic Nerve Head ◽  
Laser Speckle ◽  
Laser Speckle Flowgraphy ◽  
Preperimetric Glaucoma

scholarly journals Gender differences in the influence of obstructive sleep apnea on optic nerve head circulation

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Tomoaki Shiba ◽  
Mao Takahashi ◽  
Tadashi Matsumoto ◽  
Yuichi Hori
Keyword(s):  
Gender Differences ◽  
Obstructive Sleep Apnea ◽  
Sleep Apnea ◽  
Optic Nerve ◽  
Optic Nerve Head ◽  
Laser Speckle ◽  
Laser Speckle Flowgraphy ◽  
Apnea Hypopnea Index ◽  
Obstructive Sleep ◽  
The Mean

AbstractWe investigated gender differences in the optic nerve head (ONH) microcirculation status in association with obstructive sleep apnea (OSA) by using laser speckle flowgraphy (LSFG). We evaluated 150 men (60.5 ± 11.0 yrs) and 45 women (63.0 ± 10.6 yrs) who underwent overnight polysomnography. The mean blur rate (MBR), maximum (Max) MBR, and minimum (Min) MBR were evaluated. The parameters were analyzed separately for the tissues, vessels, and throughout the ONH (All). The apnea hypopnea index (AHI: times/hr), the lowest SpO2%, and the mean SpO2% were calculated as indicators of OSA. We investigated which MBR sections are correlated with OSA parameters separately in the men and women. All MBR sections in the women were significantly positively correlated with the lowest SpO2. In the men, no MBR section was correlated with any OSA parameters. The factors contributing independently to MBR-Tissue were height (β = 0.31) and lowest SpO2 (β = 0.30). The lowest SpO2 in the women was significantly positively correlated with Max MBR-Tissue, Max MBR-All, and Min MBR-All. Our results confirmed a gender difference in characteristics of ONH microcirculation in association with OSA.

Comparison of CCD-equipped laser speckle flowgraphy with hydrogen gas clearance method in the measurement of optic nerve head microcirculation in rabbits

2013 ◽  
Vol 108 ◽  
pp. 10-15 ◽  
Author(s):  
Hiroaki Takahashi ◽  
Tetsuya Sugiyama ◽  
Hideki Tokushige ◽  
Takatoshi Maeno ◽  
Toru Nakazawa ◽  
...  
Keyword(s):  
Optic Nerve ◽  
Optic Nerve Head ◽  
Hydrogen Gas ◽  
Laser Speckle ◽  
Laser Speckle Flowgraphy ◽  
Hydrogen Gas Clearance

Association Between Optic Nerve Head Blood Flow Measured Using Laser Speckle Flowgraphy and Radial Arterial Pressure During Aortic Arch Surgery

2018 ◽  
Vol 32 (2) ◽  
pp. 702-708 ◽  
Author(s):  
Hironobu Hayashi ◽  
Masahiro Okamoto ◽  
Hideaki Kawanishi ◽  
Nobuoki Tabayashi ◽  
Toyoaki Matsuura ◽  
...  
Keyword(s):  
Blood Flow ◽  
Optic Nerve ◽  
Arterial Pressure ◽  
Aortic Arch ◽  
Optic Nerve Head ◽  
Laser Speckle ◽  
Laser Speckle Flowgraphy ◽  
Aortic Arch Surgery
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