Results 51 to 60 of about 1,134 (119)

Assessing UVA and Laser‐Induced Crosslinking via Brillouin Microscopy

Journal of Biophotonics, Volume 18, Issue 5, May 2025.
UVA crosslinking is the primary treatment to combat keratoconus. Nevertheless, unwanted side effects and limitations due to nonselective irradiation lead to the investigation of alternative irradiation treatments. This study shows similar changes in the Brillouin frequency shift of corneas crosslinked with UVA irradiation and a NIR femtosecond laser ...
Christian A. Iriarte‐Valdez, Johannes Wenzel, Emilie Baron, Alexandra Y. Claus, Stefan Kalies, Karsten Sperlich, Oliver Stachs, Maria Leilani Torres‐Mapa, Alexander Heisterkamp   +8 more
wiley   +1 more source

Corneal Biomechanical Assessment Using Corneal Visualization Scheimpflug Technology in Keratoconic and Normal Eyes

Journal of Ophthalmology, 2014
Purpose. To compare the corneal biomechanical properties of keratoconic patients and age-matched controls using corneal visualization Scheimpflug technology (Corvis ST). Methods. Sixty keratoconic eyes from 47 keratoconus patients and 60 normal eyes from
Lei Tian, Yi-Fei Huang, Li-Qiang Wang, Hua Bai, Qun Wang, Jing-Jing Jiang, Ying Wu, Min Gao   +7 more
doaj   +1 more source

Chronic wasting disease prions on deer feeders and wildlife visitation to deer feeding areas

The Journal of Wildlife Management, Volume 89, Issue 4, May 2025.
We determined that deer feeders experienced more deer and raccoon visitation and deer‐to‐deer contacts than food plots and mast trees, demonstrating a risk for direct and indirect disease transmission. Additionally, we swabbed deer feeders for evidence of chronic wasting disease (CWD) prion contamination.
Miranda H. J. Huang, Steve Demarais, Marc D. Schwabenlander, Bronson K. Strickland, Kurt C. VerCauteren, William T. McKinley, Gage Rowden, Corina C. Valencia Tibbitts, Sarah C. Gresch, Stuart S. Lichtenberg, Tiffany M. Wolf, Peter A. Larsen   +11 more
wiley   +1 more source

Evaluation of indices for the assessment and classification of keratoconus based on optical coherence tomography and Scheimpflug technology

Ophthalmic and Physiological Optics, Volume 45, Issue 2, Page 391-404, March 2025.
Abstract Purpose To compare the parameters and indices of a novel swept‐source optical coherence tomography device (SS‐OCT, ANTERION) with those of a rotating Scheimpflug camera (RSC)‐based tomograph (Pentacam) in normal and keratoconic (KC) eyes. Methods This prospective, monocentric, cross‐sectional study included individuals with unoperated normal ...
Robert Herber, Janine Lenk, Lisa Ramm, Dierk Wittig, Maria Magdalena Patzner, Lutz E. Pillunat, Frederik Raiskup   +6 more
wiley   +1 more source

A new method for detecting the outer corneal contour in images from an ultra-fast Scheimpflug camera

BioMedical Engineering OnLine, 2019
Background The Corvis® ST tonometer is an innovative device which, by combining a classic non-contact tonometer with an ultra-fast Scheimpflug camera, provides a number of parameters allowing for the assessment of corneal biomechanics.
Magdalena Jędzierowska, Robert Koprowski, Sławomir Wilczyński, Katarzyna Krysik   +3 more
doaj   +1 more source

Biomecânica da córnea após laser de femtossegundo na cirurgia de catarata

Revista Brasileira de Oftalmologia, 2015
RESUMO Objetivo: Avaliar as alterações da biomecânica da córnea após laser de femtosegundo na cirurgia de catarata e comparar os parâmetros biomecânicos derivados do Corvis ST (Oculus Corvis ST, Scheimpflug Technology; Wetzlar, Germany) entre as ...
Bruno Freitas Valbon, Renato Ambrósio Jr, Luca Gualdi, Allan Luz, Milton Ruiz Alves   +4 more
doaj   +1 more source

Corneal biomechanics in normal and subclinical keratoconus eyes

BMC Ophthalmology, 2023
Background The diagnosis of keratoconus, as the most prevalent corneal ectatic disorder, at the subclinical stage gained great attention due to the increased acceptance of refractive surgeries.
Alireza Peyman, Fatemeh Sepahvand, Mohsen Pourazizi, Pegah Noorshargh, Ali Forouhari   +4 more
doaj   +1 more source

Variation of Bruch's membrane opening in response to intraocular pressure change during scleral lens wear, in a population with keratoconus

Ophthalmic and Physiological Optics, Volume 45, Issue 2, Page 405-415, March 2025.
Abstract Purpose The present study aimed to determine the potential impact of scleral lenses on intraocular pressure (IOP) by analysing the Bruch's membrane opening–minimum rim width (BMO‐MRW) while the lenses are worn, in a population with keratoconus.
Langis Michaud, Steven Balourdet, Dan Samaha   +2 more
wiley   +1 more source

Reliability of corneal dynamic scheimpflug analyser measurements in virgin and post-PRK eyes. [PDF]

PLoS ONE, 2014
PURPOSE: To determine the measurement reliability of CorVis ST, a dynamic Scheimpflug analyser, in virgin and post-photorefractive keratectomy (PRK) eyes and compare the results between these two groups.
Xiangjun Chen, Aleksandar Stojanovic, Yanjun Hua, Jon Roger Eidet, Di Hu, Jingting Wang, Tor Paaske Utheim   +6 more
doaj   +1 more source

Corneal Biomechanical Characteristics and Correlation Analysis in Children With Different Refractive States

Journal of Ophthalmology, Volume 2025, Issue 1, 2025.
Purpose: To investigate the correlation between corneal biomechanical characteristics and refractive status in adolescents aged 5–13 years. Methods: A cross‐sectional study involved 339 children aged 5–13 with a spherical equivalent (SE) range from −6.00 to +2.00 diopters.
Xiao Jing Bai, Yan Hua Wang, Tian Gang Liang, Qi Zhao, Meng Fan Cui, Jie Cheng, Wei Xiang Nie, Antonio Benito   +7 more
wiley   +1 more source