Results 111 to 120 of about 385,906 (239)

Corneal Topography Analysis of Stromal Corneal Dystrophies

Pakistan Journal of Medical Sciences, 2014
Objective: The aim was to compare the corneal topography and tomography parameters of macular corneal dystrophy (MCD), granular corneal dystrophy (GCD) and lattice corneal dystrophy (LCD) patients obtained by Scheimpflug imaging system.
Y. Koçluk, Z. Yalniz-Akkaya, A. Burcu, F. Ornek   +3 more
semanticscholar   +1 more source

Quantifying tear exchange during rigid contact lens wear using corneoscleral profilometry: A proof of concept study

Ophthalmic and Physiological Optics, Volume 45, Issue 3, Page 598-606, May 2025.
Abstract Introduction Tear exchange during contact lens wear is essential for ocular surface integrity, facilitating debris removal, and maintaining corneal metabolism. Fluorophotometry and fluorogram methods are typically used to measure tear exchange, which require hardware modifications to a slit lamp biomicroscope.
Asif Iqbal, Damien Fisher, David Alonso‐Caneiro, Michael J. Collins, Stephen J. Vincent   +4 more
wiley   +1 more source

Nearly-incompressible transverse isotropy (NITI) of cornea elasticity: model and experiments with acoustic micro-tapping OCE [PDF]

arXiv, 2020
The cornea provides the largest refractive power for the human visual system. Its stiffness, along with intraocular pressure (IOP), are linked to several pathologies, including keratoconus and glaucoma. Although mechanical tests can quantify corneal elasticity ex vivo, they cannot be used clinically. Optical coherence elastography (OCE), which launches
arxiv  

Agreement between extrapolated corneoscleral topographical data obtained during natural and retracted eyelid positions

Ophthalmic and Physiological Optics, Volume 45, Issue 3, Page 627-636, May 2025.
Abstract Purpose To examine the influence of aperture size (corneoscleral data coverage) on extrapolated scleral sagittal height data generated by the Pentacam HR derived from the Corneo Scleral Profile (CSP) software, by comparing measurements obtained during natural and retracted eyelid positions.
Rohan P. J. Hughes, Asif Iqbal, Grace Hoffmann, Joseph Holden, Rebecca Kitson, Huan Nguyen‐Tran, Erika Thompson, Julie Xiao, Stephen J. Vincent   +8 more
wiley   +1 more source

Bioactive Inorganic Materials for Innervated Multi‐Tissue Regeneration

Advanced Science, Volume 12, Issue 13, April 3, 2025.
This review comprehensively summarizes the recent advancements of inorganic biomaterials for innervated multi‐tissue regeneration. It emphasizes the design principles of inorganic‐based material composites and their application in functional regeneration of nerves, bone, muscles, skin, and cavernous tissues.
Hongjian Zhang, Ziyi Zhao, Chengtie Wu
wiley   +1 more source

Dynamic curvature topography for evaluating the anterior corneal surface change with Corvis ST

BioMedical Engineering OnLine, 2015
BackgroundThe measurement of dynamic parameters, such as the length of applanation and the amplitude of deformation, is significant for evaluating corneal properties.
Chunhong Ji, Jinhua Yu, Tian-jie Li, L. Tian, Yifei Huang, Yuanyuan Wang, Yongping Zheng   +6 more
semanticscholar   +1 more source

Advancing Glaucoma Diagnosis Through Multi‐Scale Feature Extraction and Cross‐Attention Mechanisms in Optical Coherence Tomography Images

Engineering Reports, Volume 7, Issue 4, April 2025.
The proposed model integrates a pre‐trained ResNet backbone, multi‐scale feature extraction, cross‐attention mechanisms, and a Channel and Spatial Attention Module (CSAM) to effectively address the challenges posed by imbalanced and complex optical coherence tomography (OCT) datasets.
Hamid Reza Khajeha, Mansoor Fateh, Vahid Abolghasemi, Amir Reza Fateh, Mohammad Hassan Emamian, Hassan Hashemi, Akbar Fotouhi   +6 more
wiley   +1 more source

Corneal Topography and Monocular Diplopia Following Near Work [PDF]

, 1978
K. J. Bowman, Graeme Smith, Leo G. Carney   +2 more
openalex   +1 more source

Distribution and Repeatability of Corneal Astigmatism Measurements (Magnitude and Axis) Evaluated With Color Light Emitting Diode Reflection Topography

Cornea, 2015
Purpose: To evaluate and investigate the distribution and repeatability of anterior corneal surface astigmatism measurements (axis and magnitude) using a novel corneal topographer. Methods: Anterior corneal surface astigmatism was investigated in a total
A. Kanellopoulos, G. Asimellis
semanticscholar   +1 more source

Patient‐specific mapping of fundus photographs to three‐dimensional ocular imaging

Medical Physics, Volume 52, Issue 4, Page 2330-2339, April 2025.
Abstract Background Ocular proton beam therapy (OPT) planning would benefit from an accurate incorporation of fundus photographs, as various intra‐ocular structures, such as the fovea, are not visible on conventional modalities such as Magnetic Resonance Imaging (MRI). However, the use of fundus photographs in OPT is limited, as the eye's optics induce
Corné Haasjes, T. H. Khanh Vu, Jan‐Willem M. Beenakker   +2 more
wiley   +1 more source