Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 10 of 10 for “"ophthalmic imaging"”.
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Transillumination techniques in ophthalmic imaging
In vivo imaging of the human cornea and retina is typically performed in a reflection geometry. Images are formed from light that has backscattered off corneal microstructures or backreflected from the retina. In this configuration, artifacts caused by superficial surface reflections are often …
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Extending the reach of anterior segment ophthalmic imaging
… propose a spectrum of portable anterior segment imaging solutions that can be operated by minimally trained health workers. On one end, we present a smartphone attachment with minimal optics and no electronic components beyond what is present in the smartphone itself to examine and image the …
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Ultrahigh speed optical coherence tomography for ophthalmic imaging applications
… non-contact, non-invasive, micron-scale optical imaging technology that has become a standard clinical tool in ophthalmology. Fourier domain OCT detection methods have enabled higher sensitivity and imaging speeds compared to previous generation timedomain OCT. Spectral / Fourier domain OCT …
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Development of Optical Coherence Tomography Systems for Ophthalmic Imaging and Intrasurgical Guidance
<p>Ophthalmic microsurgery is one of the most commonly performed surgical procedures in the world and it necessitates precise three-dimensional manipulation of tissue at sub-millimeter spatial scales. As a result, ophthalmic surgeons require an operating microscope to perform surgery and to asses …
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Graph Theory and Dynamic Programming Framework for Automated Segmentation of Ophthalmic Imaging Biomarkers
… diseases. Earlier and faster detection of ophthalmic imaging biomarkers also leads to optimal treatment and improved vision recovery. While modern optical imaging technologies such as optical coherence tomography (OCT) and adaptive optics (AO) have facilitated in vivo visualization of the …
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Functional Spectral Domain Optical Coherence Tomography Imaging
… (SDOCT) is a high-speed, high resolution imaging modality capable of structural and functional resolution of tissue microstructure. SDOCT fills a niche between histology and ultrasound imaging, providing non-contact, non-invasive backscattering amplitude and phase from a sample. Due to the …
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Optical frequency domain imaging of human retina and choroid
… as a practical noninvasive technology for imaging the microstructure of the human eye in vivo. Using optical interferometry to spatially-resolve backreflections from within tissue, this high-resolution technique provides cross-sectional images of the anterior and posterior eye segments that …
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Optical Coherence Tomography Angiography for Imaging and Analysis of the Choriocapillaris in Late Age-Related Macular Degeneration
… velocimetry that is compatible with clinical ophthalmic imaging; (2) the demonstration and quantification of choriocapillaris impairment surrounding macular neovascularization; (3) the association of macular neovascularization blood flow speeds with responses to vascular endothelial growth …
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Structural and functional imaging of the human and small animal eyes using ultrahigh speed Fourier domain optical coherence tomography
… tomography (OCT) is a non-invasive optical imaging technique that allows the three-dimensional structure of biological tissue to be visualized with micrometer resolution. In ophthalmology OCT has the unique advantage that it provides cross-sectional images of the retina and choroid …
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A Comprehensive Framework for Adaptive Optics Scanning Light Ophthalmoscope Image Analysis
… in the eye. The development of adaptive optics ophthalmic imaging systems has made high resolution visualization of ocular microstructures possible. These systems include the confocal and split detector adaptive optics scanning light ophthalmoscope (AOSLO), which can visualize human cone and rod …