Enhanced visualization of choroidal vessels using ultrahigh resolution ophthalmic OCT at 1050 nm
نویسندگان
چکیده
منابع مشابه
Enhanced visualization of choroidal vessels using ultrahigh resolution ophthalmic OCT at 1050 nm.
In this article the ability of ultrahigh resolution ophthalmic optical coherence tomography (OCT) to image small choroidal blood vessels below the highly reflective and absorbing retinal pigment epithelium is demonstrated for the first time. A new light source (lambdac= 1050 nm, Deltalambda = 165 nm, Pout= 10 mW), based on a photonic crystal fiber pumped by a compact, self-starting Ti:Al2O3 las...
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PURPOSE The purpose of this study was to compare images of the retina and choroid obtained with Spectralis 1050-nm spectral-domain optical coherence tomography (SD-OCT) with and without enhanced depth imaging (EDI) to the commercially available 870-nm SD-OCT with and without EDI. METHODS Full-length 30° line scans were obtained with both 870- and 1050-nm Spectralis OCT instruments, with and w...
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PURPOSE To provide a geographical map of choroidal thickness (CT) around the macular region among subjects with low, moderate and high myopia. METHODS 20 myopic subjects (n = 40 eyes) without other identified pathologies participated in this study: 20 eyes of ≤ 3 diopters (D) (low myopic), 10 eyes between -3 and -6D (moderate myopic), and 10 eyes of ≥ 6D (high myopic). The mean age of subject...
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Ultrahigh speed spectral / Fourier domain optical coherence tomography (OCT) using a CMOS line scan camera with image acquisition rates of 70,000 312,500 axial scans per second is investigated. Several design configurations are presented to illustrate design trade-offs between acquisition speed, sensitivity, resolution and sensitivity roll-off performance. We demonstrate: extended imaging range...
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ژورنال
عنوان ژورنال: Optics Express
سال: 2003
ISSN: 1094-4087
DOI: 10.1364/oe.11.001980