Black Sun: Ocular Invisibility of Relativistic Luminous Astrophysical Bodies [PDF]
Journal of High Energy Physics, Gravitation and Cosmology, 2016,
2, 562-570, 2015 The relativistic Doppler shifting of visible electromagnetic radiation to beyond the human ocular range reduces the incident radiance of the source. Consequently, luminous astrophysical bodies (LABs) can be rendered invisible with sufficient relativistic motion. This paper determines the proper distance as a function of relativistic velocity at which a
arxiv +1 more source
Investigating Fairness of Ocular Biometrics Among Young, Middle-Aged, and Older Adults [PDF]
arXiv, 2021 A number of studies suggest bias of the face biometrics, i.e., face recognition and soft-biometric estimation methods, across gender, race, and age groups. There is a recent urge to investigate the bias of different biometric modalities toward the deployment of fair and trustworthy biometric solutions. Ocular biometrics has obtained increased attention
arxiv
Intraocular Pressure and Its Relation to Ocular Geometry: Results From the Gutenberg Health Study
Investigative Ophthalmology and Visual Science, 2022 Purpose The purpose of this study was to investigate the association between intraocular pressure (IOP) and ocular geometry. Methods The Gutenberg Health Study is a population-based cohort study in Mainz, Germany.
E. Hoffmann +11 more
semanticscholar +1 more source
Rapid and Accurate Pressure Sensing Device for Direct Measurement of Intraocular Pressure. [PDF]
, 2020 PurposeIntraocular pressure (IOP) is the primary modifiable risk factor for glaucoma. Current devices measure IOP via the dynamic response of the healthy cornea and do not provide the accurate IOP measurements for patients with altered corneal ...
Camp, Andrew +4 more
core
Non-contact, in-vivo, functional, and structural ophthalmic imaging using multimodal photoacoustic remote sensing (PARS) microscopy and optical coherence tomography (OCT) [PDF]
arXiv, 2021 Early diagnosis of ocular diseases improves the understanding of pathophysiology and helps with accurate monitoring and effective treatment. Advanced multimodal ocular imaging platforms play a crucial role in the visualization of the ocular components and provide clinicians with a valuable tool for evaluating different eye diseases. Here, for the first
arxiv
Label-free, non-contact, in-vivo ophthalmic imaging using photoacoustic remote sensing microscopy [PDF]
, 2020 We present the first label-free, non-contact, in-vivo imaging of the ocular vasculature using photoacoustic remote sensing (PARS) microscopy. Both anterior and posterior segments mouse eye were imaged. Vasculature of iris, sclera and retina tissues were clearly resolved.
arxiv +1 more source
Effect of Uveal Melanocytes on Choroidal Morphology in Rhesus Macaques and Humans on Enhanced-Depth Imaging Optical Coherence Tomography. [PDF]
, 2016 PurposeTo compare cross-sectional choroidal morphology in rhesus macaque and human eyes using enhanced-depth imaging optical coherence tomography (EDI-OCT) and histologic analysis.MethodsEnhanced-depth imaging-OCT images from 25 rhesus macaque and 30 ...
Cunefare, David +7 more
core +1 more source
Macroscopic morphological aspects, ecometry and rebound tonometry of the eye bulb in sloth (Bradypus variegatus) [PDF]
Pesquisa Veterinária Brasileira, 2020 : The field related to the visual system of wild animals is deeply scarce. Settling anatomical and physiological parameters for these animals is still a descriptive vision for Bradypus variegatus (Schinz, 1825).
Richelle S. Braz +7 more
doaj +1 more source
Translational Vision Science & Technology, 2017 Purpose To investigate the association between corneal biomechanical properties measured with the Ocular Response Analyzer (ORA) and also CorvisST (CST) tonometry, and glaucomatous visual field (VF) severity.
Kazunori Hirasawa +6 more
semanticscholar +1 more source
Ocular Pulse Amplitude in Healthy Subjects as Measured by Dynamic Contour Tonometry [PDF]
Archives of Ophthalmology, 2006 To test whether dynamic contour tonometry yields ocular pulse amplitude (OPA) measurements that are independent of corneal thickness and curvature, and to assess variables of observer agreement.In a multivariate cluster analysis on 223 eyes, the relationship between central corneal thickness, corneal curvature, axial length, anterior chamber depth ...
Michael A. Thiel +3 more
openaire +3 more sources