Zobrazeno 1 - 10
of 102
pro vyhledávání: '"Francisco J. Ávila"'
Publikováno v:
Optics, Vol 4, Iss 4, Pp 584-594 (2023)
The cornea is the optical window to the brain. Its optical and structural properties are responsible for optical transparency and vision. The shape, elasticity, rigidity, or stiffness are due to its biomechanical properties, whose stability results i
Externí odkaz:
https://doaj.org/article/e1c384d886d94e5ca2e5951da1173a69
Autor:
Francisco J. Ávila
Publikováno v:
Journal of Imaging, Vol 10, Iss 7, p 163 (2024)
Arduino microcontrollers are used for a wide range of technological and biomedical applications, such as image classification, computer vision, brain–computer interaction and vision experiments. Here, we present a new cost-effective mini-device bas
Externí odkaz:
https://doaj.org/article/ba3021aaa5c344358ae6022657fa0217
Publikováno v:
Photonics, Vol 11, Iss 6, p 524 (2024)
Corneal biomechanics is a hot topic in ophthalmology. The biomechanical properties (BMPs) of the cornea have important implications in the management and diagnosis of corneal diseases such as ectasia and keratoconus. In addition, the characterization
Externí odkaz:
https://doaj.org/article/d287a610abd54c67ab25388456695786
Autor:
Francisco J. Ávila, Pilar Casado, Mª Concepción Marcellán, Laura Remón, Jorge Ares, Mª Victoria Collados, Sofía Otín
Publikováno v:
Journal of Imaging, Vol 10, Iss 4, p 89 (2024)
Spatial aspects of visual performance are usually evaluated through visual acuity charts and contrast sensitivity (CS) tests. CS tests are generated by vanishing the contrast level of the visual charts. However, the quality of retinal images can be a
Externí odkaz:
https://doaj.org/article/682a6d47defa4a809a80ca86e6da703b
Akademický článek
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Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-8 (2023)
Abstract The full assessment of the visual system must include the evaluation of the optical quality of the eye and neural visual functions. The objective evaluation of the retinal image quality is often carried out by computing the point spread func
Externí odkaz:
https://doaj.org/article/44ec1acb7ab746ddab2e4591fbf52946
Autor:
Francisco J. Ávila, Juan M. Bueno
Publikováno v:
Journal of Imaging, Vol 10, Iss 2, p 43 (2024)
The optical quality of an image depends on both the optical properties of the imaging system and the physical properties of the medium the light passes while travelling from the object to the image plane. The computation of the point spread function
Externí odkaz:
https://doaj.org/article/bee6832c043f4db3820378b0af6ffa89
Akademický článek
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Publikováno v:
Journal of Clinical Medicine, Vol 13, Iss 1, p 211 (2023)
Background: We aimed to study the optical and retinal modifications that occur after adapting to different lighting conditions including photopic, mesopic, scotopic, blue light and red light conditions. Methods: Thirty young healthy subjects with a m
Externí odkaz:
https://doaj.org/article/1abf1e81848148a8b05f0c06f2c8bd88
Publikováno v:
Biomedicines, Vol 11, Iss 11, p 2986 (2023)
Purpose: To evaluate alterations of the choroid in patients with a neurodegenerative disease versus healthy controls, a custom algorithm based on superpixel segmentation was used. Design: A cross-sectional study was conducted on data obtained in a pr
Externí odkaz:
https://doaj.org/article/454e23bf9cb64df2924a3361c2c6fe01