System and method for enhancing image quality and resolution in spectral domain OCT

2021 ◽  
Author(s):  
Sharadindu Banerjee ◽  
Ravikiran Manapuram
Keyword(s):  
Image Quality ◽  
Spectral Domain ◽  
Spectral Domain Oct

scholarly journals Optic Disc Vascularization in Glaucoma: Value of Spectral-Domain Optical Coherence Tomography Angiography

2016 ◽  
Vol 2016 ◽  
pp. 1-9 ◽  
Author(s):  
Pierre-Maxime Lévêque ◽  
Pierre Zéboulon ◽  
Emmanuelle Brasnu ◽  
Christophe Baudouin ◽  
Antoine Labbé
Keyword(s):  
Visual Field ◽  
Univariate Analysis ◽  
Normal Subjects ◽  
Vessel Density ◽  
Spectral Domain ◽  
Control Group ◽  
Mean Deviation ◽  
Ganglion Cell Complex ◽  
Fiber Layer ◽  
Spectral Domain Oct

Purpose. To detect changes in optic nerve head (ONH) vascularization in glaucoma patients using spectral-domain OCT angiography (OCT-A).Material and Method. Fifty glaucoma patients and 30 normal subjects were evaluated with OCT-A (AngioVue®, Optovue). The total ONH vessel density and temporal disc vessel density were measured. Clinical data, visual field (VF) parameters, and spectral-domain OCT evaluation (RNFL: retinal nerve fiber layer thickness, GCC: ganglion cell complex thickness, and rim area) were recorded for glaucoma patients. Correlations among total and temporal ONH vessel density and structural and VF parameters were analyzed.Results. In the glaucoma group, total and temporal ONH vessel density were reduced by 24.7% (0.412 versus 0.547;p<0.0001) and 22.88% (0.364 versus 0.472;p=0.001), respectively, as compared with the control group. Univariate analysis showed significant correlation between rim area (mm2) and temporal ONH vessel density (r=0.623;p<0.0001) and total ONH vessel density (r=0.609;p<0.0001). Significant correlations were found between temporal and total ONH vessel density and RNFL, GCC, VF mean deviation, and visual field index.Conclusion. In glaucoma patients OCT-A might detect reduced ONH blood vessel density that is associated with structural and functional glaucomatous damage. OCT-A might become a useful tool for the evaluation of ONH microcirculation changes in glaucoma.

Analysis of Peripapillary Atrophy According to the Optic Disc Shape Using Spectral Domain OCT

2013 ◽  
Vol 54 (11) ◽  
pp. 1748
Author(s):  
Geun Yeong Kim ◽  
You Kyung Lee ◽  
Jung Il Moon ◽  
Myoung Hee Park
Keyword(s):  
Optic Disc ◽  
Spectral Domain ◽  
Spectral Domain Oct ◽  
Peripapillary Atrophy

scholarly journals Optic Disc Margin Anatomic Features in Myopic Eyes with Glaucoma with Spectral-Domain OCT

Ophthalmology ◽  
2018 ◽  
Vol 125 (12) ◽  
pp. 1886-1897 ◽  
Author(s):  
Yu Sawada ◽  
Makoto Araie ◽  
Hitomi Shibata ◽  
Makoto Ishikawa ◽  
Toyoto Iwata ◽  
...  
Keyword(s):  
Optic Disc ◽  
Spectral Domain ◽  
Spectral Domain Oct
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