Results 41 to 50 of about 31,142 (277)

Comparison of central corneal thickness with four noncontact devices: An agreement analysis of swept-source technology

open access: yesIndian Journal of Ophthalmology, 2017
Purpose: The purpose of this study was to compare the central corneal thickness (CCT) measurements of four noncontact devices in healthy eyes. Materials and Methods: In a sample of 45 healthy controls, CCT was measured using an optical biometer ...
Erhan Ozyol, Pelin Özyol
doaj   +1 more source

Wideband Electrically Pumped 1050-nm MEMS-Tunable VCSEL for Ophthalmic Imaging [PDF]

open access: yes, 2015
In this paper, we present a 1050-nm electrically pumped microelectromechanically tunable vertical cavity surface-emitting laser (MEMS-VCSEL) with a record dynamic tuning bandwidth of 63.8 nm, suitable for swept-source optical coherence tomography (SS-OCT)
Burgner, Christopher B.   +8 more
core   +1 more source

In vivo human retinal and choroidal vasculature visualization using differential phase contrast swept source optical coherence tomography at 1060 nm [PDF]

open access: yes, 2012
A differential phase contrast (DPC) method is validated for in vivo human retinal and choroidal vasculature visualization using high-speed swept-source optical coherence tomography (SS-OCT) at 1060 nm.
Fraser, Scott, Motaghiannezam, Reza
core   +1 more source

Swept-source OCT in patients with multiple evanescent white dot syndrome

open access: yesJournal of Ophthalmic Inflammation and Infection, 2018
Background Swept-source optical coherence tomography (SS-OCT) has a higher scanning rate and longer wavelength in comparison with spectral-domain OCT (SD-OCT), allowing an improved imaging of retinal vascular plexuses and choriocapillaris.
Felipe Pereira   +5 more
doaj   +1 more source

Evaluation of dental caries, tooth crack, and age-related changes in tooth structure using optical coherence tomography

open access: yesJapanese Dental Science Review, 2020
Optical coherence tomography (OCT) is an imaging technique that can visualize the internal biological structure without X-ray exposure. Swept-source OCT (SS-OCT) is one of the latest version of OCT, wherein the light source is a tunable laser that sweeps
Yasushi Shimada   +3 more
doaj   +1 more source

En face swept-source optical coherence tomographic analysis of X-linked juvenile retinoschisis

open access: yesAmerican Journal of Ophthalmology Case Reports, 2016
Purpose: To clarify the area of retinoschisis by X-linked juvenile retinoschisis (XLRS) using swept-source optical coherence tomography (SS-OCT) en face images. Observations: We report two cases of XLRS in the same family.
Shinji Ono   +4 more
doaj   +1 more source

Logarithmic intensity and speckle-based motion contrast methods for human retinal vasculature visualization using swept source optical coherence tomography [PDF]

open access: yes, 2012
We formulate a theory to show that the statistics of OCT signal amplitude and intensity are highly dependent on the sample reflectivity strength, motion, and noise power.
Cense   +25 more
core   +2 more sources

Comparison of macular retinal thickness measurements using spectral-domain and swept-source optical coherence tomography in healthy eyes

open access: yesFrontiers in Medicine
AimThis study compares retinal thickness measurements in healthy eyes using one SD-OCT and two SS-OCT devices to assess differences and consistency for clinical application.MethodsForty-eight eyes with a mean age of 28.15 ± 8.85 years were enrolled ...
Huan Wan, Zhaode Wu, Ziling Liu, Bo Qin
doaj   +1 more source

In vivo high-contrast imaging of deep posterior eye by 1-um swept source optical coherence tomography and scattering optical coherence angiography [PDF]

open access: yes, 2007
Retinal, choroidal and scleral imaging by using swept-source optical coherence tomography (SS-OCT) with a 1-μm band probe light, and high-contrast and three-dimensional (3D) imaging of the choroidal vasculature are presented.
Akiba Masahiro   +7 more
core   +1 more source

Choriocapillaris imaging using SS-OCT angiography in AMD

open access: yes, 2020
Purpose: Imaging of the choriocapillaris (CC) and choroid were performed using swept source optical coherence tomography angiography (SS-OCTA) in eyes with age-related macular degeneration (AMD). Our initial studies involved AMD eyes with geographic atrophy (GA), also known as complete retinal pigment[for full text, please go to the a.m. URL]
Rosenfeld, PJ   +11 more
openaire   +2 more sources

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