Results 71 to 80 of about 828,745 (178)

Astigmatic changes after Descemet membrane endothelial keratoplasty (DMEK) in decompensated penetrating keratoplasty grafts

open access: yesActa Ophthalmologica, Volume 104, Issue 5, Page e516-e529, August 2026.
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

Changes in corneal curvature and astigmatism in senile cataract patients after phacoemulsification

open access: yesFrontiers in Medicine
PurposeAnalysis of changes in corneal curvature and astigmatism after phacoemulsification for senile cataracts.MethodsRetrospective collection of clinical data from patients who underwent uncomplicated phacoemulsification at the First Affiliated Hospital
Yan-Hui Xiao, Yue-Qi Liu, Zhi-Gang Chen
doaj   +1 more source

Changes in choroidal and retinal thickness 6 months before and during 18 months of orthokeratology lens treatment in myopic children

open access: yesActa Ophthalmologica, Volume 104, Issue 5, Page e578-e589, August 2026.
Abstract Purpose To investigate changes in choroidal and retinal thickness before and during myopia control treatment with orthokeratology lenses (OKL) in myopic children. Methods This was a sub‐study of CONTROL and CONTROL2 studies. The present study was a 2‐year, prospective, single‐group interventional study consisting of a 6‐month pre‐treatment ...
P. O. Hansen, F. Møller, T. M. Jakobsen
wiley   +1 more source

Repeatability of keratometry depending on tear film osmolarity

open access: yesActa Ophthalmologica, Volume 104, Issue 5, Page e530-e537, August 2026.
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

Femtosecond Laser Created Corneal Allogenic Intrastromal Ring Segments for Keratoconus

open access: yesClinical &Experimental Ophthalmology, Volume 54, Issue 5, Page 664-677, July 2026.
ABSTRACT Background To evaluate the clinical outcomes of femtosecond laser‐created corneal allogenic intrastromal ring segments (femto‐CAIRS) in keratoconic eyes using a newly described nomogram. Methods This retrospective case series recruited 85 eyes from 75 patients.
David J. Gunn   +2 more
wiley   +1 more source

Toric intraocular lens implantation in cataract patients with corneal opacity

open access: yesBMC Ophthalmology, 2020
Background To evaluate the effect of toric intraocular lens implantation in cataract patient with corneal opacity and high astigmatism. Methods Thirty-one eyes of 31 patients who underwent cataract surgery with toric intraocular lens implantation were ...
Ho Ra   +4 more
doaj   +1 more source

Duration‐Dependent Efficacy and Clinical Safety of Repeated Low‐Level Red‐Light Therapy for Paediatric Myopia: A Systematic Review and Meta‐Analysis

open access: yesClinical &Experimental Ophthalmology, Volume 54, Issue 5, Page 630-652, July 2026.
ABSTRACT Background Repeated low‐level red‐light (RLRL) therapy is a novel, non‐invasive intervention for controlling paediatric myopia progression. Despite increasing clinical use, questions remain regarding the magnitude, durability, and safety of treatment effects.
Lee‐Yuan Lin   +8 more
wiley   +1 more source

Corneal topography, anterior segment and high-order aberration assessments in children with >= 2 diopter astigmatism

open access: yes, 2020
Purpose To assess topographic findings, anterior segment parameters and high-order aberrations (HOAs) by using corneal tomography in children with 2 diopters (dp) or more astigmatism.
Ozmen, Sedat   +10 more
core   +2 more sources

Comparative effects of various types of toric intraocular lenses on astigmatism correction

open access: yesBMC Ophthalmology, 2020
Background Currently, various types of toric intraocular lenses (IOL) have been manufactured and can be divided into three types according to the location of correction component; front-toric IOL (correction on anterior IOL surface), back-toric IOL ...
Jayoon Moon, Chang Ho Yoon, Mee Kum Kim
doaj   +1 more source

Microelectromechanical system‐based devices for the diagnosis, treatment, and monitoring of ophthalmic diseases

open access: yesInterdisciplinary Medicine, Volume 4, Issue 3, May 2026.
Due to the characteristics of miniaturization, high sensing performance, integration, and high comfort, MEMS‐based devices were employed to design sensors, imaging systems, drug delivery systems, retinal prosthesis, surgical tools, and wearable products for the ophthalmic disease diagnosis, treatment, and monitoring.
Yaling Peng   +10 more
wiley   +1 more source

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