Mostrando 3,241 - 3,260 Resultados de 97,099 Para Buscar '"optics"', tiempo de consulta: 0.33s Limitar resultados
  1. 3241
    “…BACKGROUND: To describe objectively the possible structural changes of the macula and optic nerve head in the free eyes of unilateral cured retinoblastoma patients and, also after enucleation using spectral domain optical coherence tomography. …”
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  2. 3242
    “…PURPOSE: To evaluate the hypotenuse of the vertical optic nerve head cup (HVOC), measured using the length and depth of the cup obtained with enhanced depth imaging spectral-domain optic coherence tomography (SD-OCT), as a biomarker for glaucoma diagnosis. …”
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  3. 3243
  4. 3244
    “…PURPOSE: To evaluate the ability of enhanced-depth imaging (EDI) optical coherence tomography angiography (OCTA) to detect vascular signals inside the glaucomatous optic disc. …”
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  5. 3245
    “…Background and objective: Optic neuritis (ON) is characterized by painful, usually monocular vision loss with decreased visual acuity and defects of the visual field and color vision. …”
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  6. 3246
    “…Physical examination revealed small lacerations on his left forehead and optic neuropathy on the right side with no other obvious discerning physical or imaging abnormalities. …”
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  7. 3247
    “…PURPOSE: To evaluate the agreement between optical biometry with swept-source optical coherence tomography-based optical biometry (IOLMaster 700) and other devices. …”
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  8. 3248
    “…In this paper, a method is presented to more accurately determine the 3D cell rotation velocity and axis from a 2D image sequence captured by a single camera. Using the optical flow method, we obtained the 2D motion field data from the image sequence and back-project it onto a 3D sphere model, and then the rotation axis and velocity of the cell were calculated. …”
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  9. 3249
  10. 3250
    “…PURPOSE: To describe swept-source optical coherence tomography and optical coherence tomography angiography retinal changes in a case of acute toxoplasmic chorioretinitis both at the time of diagnosis and after healing. …”
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  11. 3251
  12. 3252
  13. 3253
  14. 3254
    “…OBJECTIVE: To investigate (1) the feasibility of scanning the optic nerve (ON) and central retina with hand-held optical coherence tomography (HH-OCT) without sedation or anaesthesia in primary congenital glaucoma (PCG), (2) the characteristics of ON changes in comparison with adult primary open-angle glaucoma (POAG) in comparison with matched controls, (3) the sensitivity and specificity of ON parameters for diagnosis, and (4) changes of foveal morphology. …”
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  15. 3255
    por Zhao, Zhiguo, Li, Xue
    Publicado 2020
    “…Therefore, the Na(3)FeF(6):Tb(3+) powders may find potential applications in the biomedical field as magnetic-optical bi-functional materials.…”
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  16. 3256
    “…BACKGROUND: Pseudoduplication of the optic disc is a rare clinical condition that is characterized by a circumscribed, disc-like lesion with radiating vessels but only one normal optic nerve. …”
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  17. 3257
    “…This study aimed to compare the vessel density (VD) in the optic disc and macula using optical coherence tomography angiography (OCTA) between POAG and PACG eyes. …”
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  18. 3258
    “…Depth-visualizing sensitivity can be degraded due to imperfect optical alignment and non-equidistant distribution of optical signals in the pixel array, which requires a measurement of the re-sampling process. …”
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  19. 3259
    por Vafafard, Azar, Sahrai, Mostafa
    Publicado 2020
    “…We theoretically investigate the optical and magneto-optical Faraday and Kerr rotations of a probe field that propagates through a nonmagnetic dielectric slab doped with double-V type atoms. …”
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  20. 3260
    “…A very strong enhancement of the nonlinear optical response and a very efficient optical limiting action are observed, being strongly dependent on the degree of functionalization of fluorographene. …”
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