Results 41 to 50 of about 3,210 (165)

Corneal transplantation: Restoring sight to the blind

Acta Ophthalmologica, EarlyView.
Abstract Corneal blindness is one of the leading causes of vision loss worldwide. Transplantation of the cornea can restore vision and make blind patients see again. Corneal transplant surgery has undergone major evolution in recent decades with the advent of minimally invasive lamellar surgical approaches such as DMEK and DALK.
Claus Cursiefen
wiley   +1 more source

Diagnosis of keratoconus with optical coherence tomography

Journal of the Egyptian Ophthalmological Society, 2016
Purpose The aim of the study was to assess the accuracy of optical coherence tomography (OCT) (3D OCT-2000) in diagnosing keratoconus by measuring the central corneal thickness and the central curvature radius.
Mortada A Abozaid, Ashraf M Mohammed
doaj   +1 more source

Ocular biomechanical measurements on post-keratoplasty corneas using a Scheimpflug-based noncontact device [PDF]

International Journal of Ophthalmology, 2016
AIM: To analyse ocular biomechanical properties, central corneal thickness (CCT) and intraocular pressure (IOP) in post-keratoplasty eyes, as compared to normal subjects, with a new Scheimpflug-based technology.
Laszlo Modis Jr., Ziad Hassan, Eszter Szalai, Zsuzsanna Flaskó, Andras Berta, Gabor Nemeth   +5 more
doaj   +1 more source

Variation in measuring and ophthalmic factors correlating with central corneal thickness in the Northern Finland birth cohort eye study

Acta Ophthalmologica, EarlyView.
Abstract Purpose To assess the correlation between optical coherence tomography (OCT) and ultrasound pachymetry (USP) as methods for analysing central corneal thickness (CCT) and to evaluate ophthalmic factors affecting CCT. Methods The eyes of 3070 subjects of the Northern Finland Birth Cohort (NFBC) were examined at the age of 45–49 years.
Tuomas Qvist, Oona Ahokas, Johanna Liinamaa, Ville Saarela   +3 more
wiley   +1 more source

Corneal Densitometry with Galilei Dual Scheimpflug Analyzer

Photonics, 2023
This study aims to apply the densitometry distribution analysis (DDA) method to study corneal densitometry depending on age and corneal region from Galilei Dual Scheimpflug Analyzer tomography. A total of 83 healthy participants aged 39.02 ± 18.34 years (
Alejandra Consejo, Silvia Basabilbaso, Laura Remon   +2 more
doaj   +1 more source

Decellularised Corneal Stromal Lamina With or Without Autologous Adipose‐Derived Adult Stem Cells for Advanced Keratoconus: 1‐Year Results of a Phase I/IIa Clinical Trial

Clinical &Experimental Ophthalmology, EarlyView.
ABSTRACT Background To report the 1‐year clinical outcomes of decellularised human corneal stromal lamina implantation, with or without autologous adipose‐derived adult stem cells (ADASCs), for advanced keratoconus in a European cohort. Methods In this prospective, randomised Phase I/IIa trial, 10 eyes of 10 patients were allocated to decellularised ...
Hao Zhang, Jorge L. Alió del Barrio, Alejandra E. Rodriguez, Rafael I. Barraquer, Francisco Arnalich‐Montiel, David Mingo‐Botín, María Eugenia Fernández Santos, Jorge L. Alió   +7 more
wiley   +1 more source

Enhancing ectasia screening using advanced AS-OCT: a case series of challenging refractive candidates

Frontiers in Ophthalmology
PurposeEctasia screening in candidates for laser refractive surgery is mandatory during preoperative evaluation. Despite the availability of modern imaging techniques, refractive surgeons often face borderline decisions when patients present with ...
Niklas Mohr, Stefan Kassumeh, Nikolaus Luft, Nikolaus Luft, Martin Dirisamer, Martin Dirisamer, Siegfried G. Priglinger, Wolfgang J. Mayer   +7 more
doaj   +1 more source

Ocular Manifestations of Metabolic Syndrome: A Systemic Vascular Phenotype

Diabetes, Obesity and Metabolism, EarlyView.
ABSTRACT Context Metabolic syndrome (MetS) is defined by central obesity, insulin resistance, hypertension and dyslipidemia. MetS affects over one‐third of US adults. Beyond its cardiovascular burden, MetS has clinically relevant associations with ocular health and may contribute to a systemic vascular and neuro‐metabolic phenotype involving the retina,
Ron T. Varghese, Ansu A. John
wiley   +1 more source

Corneoscleral Topography Measured with Fourier‐based Profilometry and Scheimpflug Imaging [PDF]

Optometry and Vision Science, 2020
SIGNIFICANCE Precise measurement of corneoscleral topography makes a valuable contribution to the understanding of anterior eye anatomy and supports the fitting process of contact lenses. Sagittal height data, determined by newer noninvasive techniques, are particularly useful for initial scleral lens selection.
Bandlitz, Stefan, Esper, Patrick, Stein, Magdalena, Dautzenberg, Torsten, Wolffsohn, James S   +4 more
openaire   +2 more sources

Reduced order modelling of air‐puff test for corneal material characterisation

Journal of Microscopy, EarlyView.
Abstract Models of the fluid–structure interaction (FSI) model for the air‐puff test were analysed. Using Abaqus, the air‐puff test is applied to eyes with varying biomechanical parameters, such as material properties, corneal thickness, and radius.
Osama M. Maklad, Muting Hao
wiley   +1 more source