Optic nerve head and peripapillary perfusion as assessed with laser speckle flowgraphy in non‐arteritic anterior ischaemic optic neuropathy

2020 ◽  
Author(s):  
Giacomo Calzetti ◽  
Paolo Mora ◽  
Alessandro Romani ◽  
Giorgia Ottonelli ◽  
Alessandra Pareti ◽  
...  
Keyword(s):  
Optic Nerve ◽  
Optic Neuropathy ◽  
Optic Nerve Head ◽  
Laser Speckle ◽  
Laser Speckle Flowgraphy ◽  
Ischaemic Optic Neuropathy ◽  
Anterior Ischaemic Optic Neuropathy

scholarly journals Increased Microcirculation on Optic Nerve Head by Laser Speckle Flowgraphy at Early Stage of Leber Hereditary Optic Neuropathy

2018 ◽  
Vol 43 (6) ◽  
pp. 411-416
Author(s):  
Toshiki Watanabe ◽  
Yukihiko Mashima ◽  
Kazuteru Kigasawa ◽  
Asako Mashima ◽  
Masahiko Shimura ◽  
...  
Keyword(s):  
Optic Nerve ◽  
Optic Neuropathy ◽  
Optic Nerve Head ◽  
Early Stage ◽  
Laser Speckle ◽  
Laser Speckle Flowgraphy ◽  
Leber Hereditary Optic Neuropathy ◽  
Hereditary Optic Neuropathy

scholarly journals Non-arteritic anterior ischaemic optic neuropathy sequential to SARS-CoV-2 virus pneumonia: preventable by endothelial protection?

2021 ◽  
Vol 14 (7) ◽  
pp. e240542
Author(s):  
Laura Moschetta ◽  
Giuseppe Fasolino ◽  
Robert W Kuijpers
Keyword(s):  
Risk Factors ◽  
Optic Nerve ◽  
Optic Neuropathy ◽  
Optic Nerve Head ◽  
Systemic Risk ◽  
Virus Pneumonia ◽  
Ischaemic Optic Neuropathy ◽  
Optic Nerve Head Circulation ◽  
Anterior Ischaemic Optic Neuropathy ◽  
Systemic Risk Factors

We present a case of non-arteritic anterior ischaemic optic neuropathy (NAION) with no ocular or systemic risk factors in a patient who recovered from a recent SARS-CoV-2 pneumonia. NAION is the most common acute optic neuropathy among individuals over 50 years of age. It results from a transient hypoperfusion of the optic nerve head circulation, especially in patients with low vascular compliance due to ocular or systemic risk factors. We attribute the ophthalmological condition to a SARS-CoV-2 virus-associated endotheliopathy that can be prevented with timely protection of endothelial function with vitamins D and K2.

scholarly journals Optic nerve head blood flow measurements in non-arteritic anterior ischaemic optic neuropathy

Eye ◽  
2000 ◽  
Vol 14 (6) ◽  
pp. 828-833 ◽  
Author(s):  
Hana Leiba ◽  
Rony Rachmiel ◽  
Alon Harris ◽  
Larry Kagemann ◽  
Ayala Pollack ◽  
...  
Keyword(s):  
Blood Flow ◽  
Optic Nerve ◽  
Optic Neuropathy ◽  
Optic Nerve Head ◽  
Flow Measurements ◽  
Ischaemic Optic Neuropathy ◽  
Anterior Ischaemic Optic Neuropathy ◽  
Blood Flow Measurements

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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