Results 31 to 40 of about 726,771 (251)

Repeatability and Reproducibility of Intraocular Pressure and Dynamic Corneal Response Parameters Assessed by the Corvis ST

Journal of Ophthalmology, 2017
Purpose. To assess the repeatability and reproducibility of dynamic corneal response parameters measured by the Corvis ST (Oculus, Wetzlar, Germany). Methods. One eye randomly selected from 32 healthy volunteers was examined by the Corvis ST.
Bernardo T. Lopes, Cynthia J. Roberts, Ahmed Elsheikh, Riccardo Vinciguerra, Paolo Vinciguerra, Sven Reisdorf, Stefanie Berger, Robert Koprowski, Renato Ambrósio   +8 more
doaj   +1 more source

Applications of corneal topography and tomography: a review [PDF]

, 2018
Corneal imaging is essential for diagnosing and management of a wide variety of ocular diseases. Corneal topography is used to characterize the shape of the cornea, specifically, the anterior surface of the cornea.
Jhanji, V, Chan, TCY, Fan, R, Prakash, G
core   +1 more source

Analysis of the Significance of Keratotopography, Keratopachymetry and Optical Coherence Tomography of the Cornea in the Differential Diagnosis of Pellucid Marginal Corneal Degeneration and Keratoconus

Oftalʹmologiâ, 2022
Purpose. To analyze the significance of keratotopography, keratopachymetry and optical coherence tomography of the cornea in the differential diagnosis of pellucid marginal corneal degeneration with keratoconus.Patients and methods.
I. V. Vasilieva, S. V. Kostenev, A. V. Vasiliev   +2 more
doaj   +1 more source

Combined Rotating Ultra-High-Resolution Spectral Domain OCT and Scheimpflug Imaging for In Vivo Corneal Optical Biopsy

Diagnostics
Purpose: This article introduces the Pentacam® Cornea OCT (optical coherence tomography). This advanced corneal imaging system combines rotating ultra-high-resolution spectral domain OCT with sub- 2-micron axial resolution and Scheimpflug photography ...
Renato Ambrósio Jr., Louise Pellegrino G. Esporcatte, Karolyna Andrade de Carvalho, Marcella Q. Salomão, Amanda Luiza Pereira-Souza, Bernardo T. Lopes, Aydano P. Machado, Sebastian Marschall   +7 more
doaj   +1 more source

Pentacam – A Corneal Tomography System

Delhi Journal of Ophthalmology, 2020
Investigative technology in the field of corneal refractive surgery has seen a rapid evolution in the last two decades. The shift from corneal topography system to corneal tomography analysis has not only improved the accuracy of corneal contour analysis
Abhishek Upadhyaya, Sarah Khan, Pranita Sahay, Siddhi Goel, Devesh Kumawat   +4 more
doaj   +1 more source

Biomechanical and tomographic findings in Brown-McLean syndrome

American Journal of Ophthalmology Case Reports
Purpose: Brown-McLean syndrome (BMS) is a clinical condition characterized by peripheral corneal edema with central corneal transparency. This study aims to document the tomographic and biomechanical characteristics of 3 patients with typical BMS ...
Jaime Guedes, Rodrigo Vilares-Morgado, Rodrigo Brazuna, Alexandre Costa Neto, Denisse J. Mora-Paez, Marcella Q. Salomão, Fernando Faria-Correia, Renato Ambrósio, Jr.   +7 more
doaj   +1 more source

Additively Manufactured Geometry‐Reconfigurable Soft Neural Probes With Monolithic Multifunctionality

Advanced Functional Materials, EarlyView.
A geometry‐reconfigured additive manufacturing strategy converts planar printed soft materials into soft compact neural probes with integrated hydrogel electrodes and microfluidic channels. The resulting NeuroMAP platform enables scalable multichannel recording, localized chemical delivery, stable in vivo electrophysiological recording, and reduced ...
Hyunjin Lee, Xinyi Wang, Sirui Li, Jihyang Park, Hyunseok Lee, Jianting Yao, Kedar Narayan, Yuqi Wang, Jiashu Ren, Yueqi Deng, Salahuddin Ahmed, Denver I. Greenawalt, Archana Pandiyan, Loganathan Veeramuthu, Chi‐Ching Kuo, Tao Zhou   +15 more
wiley   +1 more source

Investigation of How Corneal Densitometry Artefacts Affect the Imaging of Normal and Keratoconic Corneas

Bioengineering
Purpose: To investigate corneal densitometry artefacts found in Pentacam Scheimpflug scans and their potential effect on assessing keratoconic (KC) corneas compared to normal (N) corneas.
Rami Alanazi, Louise Pellegrino Gomes Esporcatte, Lynn White, Marcella Q. Salomão, Bernardo T. Lopes, Renato Ambrósio Jr., Ahmed Abass   +6 more
doaj   +1 more source

Non-invasive assessment of corneal crosslinking changes using polarization sensitive optical coherence tomography [PDF]

, 2013
Collagen crosslinking (CXL) has shown promising results in the prevention of the progression of keratoconus and corneal ectasia. However, techniques for in vivo and in situ assessment of the treatment are limited. In this study, ex vivo porcine eyes were
Y. Yasuno, Yamanari, M., Fukuda, S., T. Oshika, Yasuno, Y., D. Alonso-Caneiro, S. Nagase, Nagase, S., S. Hoshi, Alonso-Caneiro, D., Collins, M.J., S. Fukuda, Oshika, T., M. Collins, M. Yamanari, Hoshi, S.   +15 more
core   +1 more source

Bio‐Inspired Multifunctional Superhydrophilic Coatings With Remarkably Fast Self‐Healing Abilities

Advanced Functional Materials, EarlyView.
We developed bio‐inspired multifunctional hydrogel‐based coatings that exhibit extremely fast/repeatable self‐healing abilities, long‐lasting anti‐fogging performance, superhydrophilicity in air, and underwater superoleophobicity. By doping multivalent metal‐ions into the hydrogel networks, which promoted hydrogen bonding formation and enhanced the ...
Hyeonjin Kim, Jerred Wassgren, Hiroshi Kakiuchida, Kouki Akaike, Shunsuke Tanaka, Atsushi Hozumi   +5 more
wiley   +1 more source