Imaging Retrobulbar Subarachnoid Space around Optic Nerve by Swept-Source Optical Coherence Tomography in Eyes with Pathologic Myopia

2011 ◽  
Vol 52 (13) ◽  
pp. 9644 ◽  
Author(s):  
Kyoko Ohno-Matsui ◽  
Masahiro Akiba ◽  
Muka Moriyama ◽  
Tatsuro Ishibashi ◽  
Takashi Tokoro ◽  
...  
Keyword(s):  
Optical Coherence Tomography ◽  
Optic Nerve ◽  
Subarachnoid Space ◽  
Pathologic Myopia ◽  
Optical Coherence ◽  
Swept Source

scholarly journals Swept Source Optical Coherence Tomography Documenting Optic Nerve Involvement in an Aggressive T-Cell Lymphoma

2020 ◽  
pp. 1-4
Author(s):  
Layla Maris Areas ◽  
Fabio Lavinsky ◽  
Daniel Lavinsky ◽  
Rodrigo Leivas Lindenmeyer ◽  
Helena Messinger Pakter ◽  
...  
Keyword(s):  
Optical Coherence Tomography ◽  
T Cell ◽  
Optic Nerve ◽  
Cell Lymphoma ◽  
T Cell Lymphoma ◽  
Optical Coherence ◽  
Swept Source ◽  
Nerve Involvement ◽  
Optic Nerve Involvement

scholarly journals Morphologic Features of Myopic Choroidal Neovascularization in Pathologic Myopia on Swept-Source Optical Coherence Tomography

2020 ◽  
Vol 7 ◽  
Author(s):  
Jiamin Xie ◽  
Qiuying Chen ◽  
Jiayi Yu ◽  
Hao Zhou ◽  
Jiangnan He ◽  
...  
Keyword(s):  
Risk Factors ◽  
Optical Coherence Tomography ◽  
Choroidal Neovascularization ◽  
Axial Length ◽  
Pathologic Myopia ◽  
Control Group ◽  
Optical Coherence ◽  
Swept Source ◽  
Myopic Choroidal Neovascularization ◽  
Myopic Cnv

Purpose: To investigate the morphologic features and identify the risk factors of myopic choroidal neovascularization (CNV).Methods: Eighty-eight eyes of 69 consecutive patients with myopic CNV were included in this study. About 109 eyes of 78 pathologic myopia patients without myopic CNV were randomly selected as the control group. Morphologic features and parameters including scleral thickness (ST), choroidal thickness (CT), posterior staphyloma height and the presence of scleral perforating vessels were obtained and measured by swept-source optical coherence tomography (SS-OCT). Binary logistic regression analysis was performed to identify the risk factors for myopic CNV.Results: Patients with myopic CNV had relatively shorter axial length (P < 0.001) and thicker sclera (P < 0.001) compared to those without. After adjusting age, gender and axial length, thick sclera (OR = 1.333, P < 0.001 per 10-μm increase) and thin choroid (OR = 0.509, P < 0.001 per 10-μm increase) were associated with the presence of myopic CNV. Scleral perforating vessels were detected in the area of myopic CNV in 78.67% of the subjects.Conclusions: A relatively thicker sclera and a thinner choroid are the biological indicators for myopic CNV on SS-OCT. Scleral perforating vessels may also play a pivotal role in the formation of myopic CNV.

Reproducibility of macular and optic nerve head vessel density measurements by swept-source optical coherence tomography angiography

2019 ◽  
Vol 30 (4) ◽  
pp. 756-763 ◽  
Author(s):  
José Ignacio Fernández-Vigo ◽  
Bachar Kudsieh ◽  
Ana Macarro-Merino ◽  
Pedro Arriola-Villalobos ◽  
José María Martínez-de-la-Casa ◽  
...  
Keyword(s):  
Optical Coherence Tomography ◽  
Optic Nerve ◽  
Optic Nerve Head ◽  
Optical Coherence Tomography Angiography ◽  
Central Zone ◽  
Vessel Density ◽  
Optical Coherence ◽  
Outer Retina ◽  
Swept Source ◽  
Capillary Plexus

Purpose: To assess the reproducibility of swept-source optical coherence tomography angiography (SS-OCTA) for macular and optic nerve head (ONH) vessel density (VD). Methods: Cross-sectional study using the Triton OCTA (Topcon, Tokyo, Japan), for VD (%) measurements in 40 eyes of 40 healthy subjects on two 6 × 6 mm scans of the macula and ONH across five subfields (central, superior, inferior, temporal, and nasal) at different segmentation levels: superficial capillary plexus (SCP), deep capillary plexus (DCP), outer retina, and choriocapillaris. Reproducibility values were summarized as intraclass correlation coefficients (ICCs) and coefficients of variations (CV). Results: ICCs for the macular VD measurements in the central zone were 0.874, 0.770, 0.575, 0.718 at the levels SCP, DCP, outer retina, and choriocapillaris, respectively, while worse ICCs were obtained for the parafoveal subfields (ICC ⩽ 0.589); CVs were 2.8%–6.7%. The reproducibility of the ONH superficial VD was ICC = 0.941 for the papillary region and was ICC = 0.499–0.853 for the peripapillary zone; CVs ranged from 4.8% to 17%. Peripapillary VD showed an ICC = 0.533–0.770 in the DCP layer, and 0.572–0.828 in the choriocapillaris. Lowest VD were obtained for the macular SCP and DCP (23% and 22%, respectively), in the foveal zone, while greatest VD were recorded in the nasal and temporal peripapillary subfields at the level of the choriocapillaris (both 68%). Conclusions: The new SS-OCTA software served to quantify macular and ONH VD with a reproducibility that was good in the central zones (foveal and papillary, respectively) and moderate in the peripheral zones (parafoveal and peripapillary).

scholarly journals Volumetric Measurement of Optic Nerve Head Drusen Using Swept-Source Optical Coherence Tomography

2017 ◽  
Vol 26 (9) ◽  
pp. 798-804 ◽  
Author(s):  
Edem Tsikata ◽  
Alice C. Vercellin Verticchio ◽  
Iryna Falkenstein ◽  
Linda Yi-Chieh Poon ◽  
Stacey Brauner ◽  
...  
Keyword(s):  
Optical Coherence Tomography ◽  
Optic Nerve ◽  
Optic Nerve Head ◽  
Optical Coherence ◽  
Volumetric Measurement ◽  
Swept Source ◽  
Optic Nerve Head Drusen
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