Results 51 to 60 of about 3,801 (190)
Acta Ophthalmologica, EarlyView.Abstract Purpose To evaluate the surgery‐induced changes of astigmatism after Descemet membrane endothelial keratoplasty (DMEK) in eyes with failed previous penetrating keratoplasty (PK). Design Retrospective, interventional cohort study based on prospective DMEK database.
Florian Thomas Steinberg +6 more
wiley +1 more source
Repeatability of keratometry depending on tear film osmolarity
Acta Ophthalmologica, EarlyView.Abstract Purpose To determine the repeatability of keratometry and astigmatism measurements of patients depending on the tear film osmolarity using three different devices. Methods In this study, 97 eyes of 97 patients with a mean age of 64.92 ± 12.07 years received three repeated measurements with the IOLMaster 700 (Carl Zeiss Meditec, Jena, Germany),
David Schneider +4 more
wiley +1 more source
Mild Topographic Abnormalities that Become More Suspicious on Scheimpflug Imaging
, 2009 Purpose Although several screening methods exist, postoperative corneal ectasia after refractive surgery is a severe complication. One possibility for this might be the fact that screening methods may fail in detection of preoperative risk factors such ...
CA. Lackerbauer +5 more
core +1 more source
Improvement of Scheimpflug systems with freeform surfaces
, 2022 S.1482-1491It is well known that freeform surfaces are used to improve the resolution in systems without rotational symmetry. For Scheimpflug systems, the tilted object plane leads to variant magnification in the system imaging.
Zhong, Y., Gross, H.
core +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. +5 more
doaj +1 more source
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
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 +3 more
wiley +1 more source
Frontiers in OphthalmologyPurposeEctasia 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 +7 more
doaj +1 more source
Clinical &Experimental Ophthalmology, EarlyView.ABSTRACT Background To compare the predictive accuracy of ray tracing‐based intraocular lens (IOL) power calculation formulas with the Barrett Universal II (BUII) formula in eyes with Fuchs endothelial corneal dystrophy (FECD) undergoing combined cataract surgery and Descemet membrane endothelial keratoplasty (triple DMEK).
Jan O. Weber +5 more
wiley +1 more source