Comparison of the accuracy of toric IOL power in cataract eyes with irregular astigmatism using two keratometry devices [PDF]
BMC OphthalmologyBackground To compare the accuracy of toric intraocular lens (IOL) calculation using simulated keratometry (SimK) obtained from two different devices in cataract eyes with central or paracentral preoperative corneal irregular astigmatism.
Si Li, Mingxing Wu
exaly +3 more sources
Validity of autorefractor based screening method for irregular astigmatism compared to the corneal topography- a cross sectional study [PDF]
International Journal of Ophthalmology, 2017 AIM: To present a method of screening for irregular astigmatism with an autorefractor and its determinants compared to corneal topography. METHODS: This cross-sectional validity study was conducted in 2013 at an eye hospital in Spain.
Rajiv Khandekar +2 more
exaly +3 more sources
Comparison of corneal irregular astigmatism by the type of corneal regular astigmatism [PDF]
Scientific Reports, 2021 We investigated the relation between corneal regular and irregular astigmatism in normal human eyes. In 951 eyes of 951 patients, corneal irregular astigmatism, such as asymmetry and higher-order irregularity components, was calculated using the Fourier ...
Yuta Ueno +5 more
doaj +2 more sources
Regular and irregular astigmatism of bullous keratopathy using Fourier harmonic analysis with anterior segment optical coherence tomography [PDF]
Scientific Reports, 2022 Bullous keratopathy (BK) is known to present with corneal edema and Descemet's folds, which can cause corneal astigmatism. However, no report quantitatively evaluated BK astigmatism by separating it into regular and irregular astigmatism.
Lily Wei Chen +9 more
doaj +2 more sources
Management of Cataract in Patients with Irregular Astigmatism with Regular Central Component by Phacoemulsification Combined with Toric Intraocular Lens Implantation [PDF]
Journal of Ophthalmology, 2020 Purpose. To evaluate visual acuity (VA) and refractive status in patients with cataract and irregular astigmatism with a regular central component after phacoemulsification with implantation of a toric intraocular lens (IOL). Methods.
Yi Gao +5 more
doaj +2 more sources
Refractive surprise of irregular astigmatism following cataract surgery in two patients with neglected subclinical corneal ectasia: two case reports [PDF]
BMC Ophthalmology, 2023 Background Corneal ectatic diseases are a group of corneal disorder characterized by the steepening and thinning of the cornea. Older people are not a high-risk population for corneal ectatic diseases; due to the lack of typical preoperative topographic ...
Leran Chen +3 more
doaj +2 more sources
Long-term outcomes of wedge resection at the limbus for high irregular corneal astigmatism after repaired corneal laceration [PDF]
International Journal of Ophthalmology, 2016 AIM: To evaluate the clinical value of wedge resection at corneal limbus in patients with traumatic corneal scarring and high irregular astigmatism. METHODS: Patients with traumatic corneal astigmatism received wedge resection at least 6mo after suture ...
Xiao-Fang Zhang
exaly +2 more sources
Mechanical removal of epithelial hyperplasia leads to successful treatment of irregular astigmatism [PDF]
BMC Ophthalmology, 2023 Background Corneal epithelium remodeling in response to changes in the anterior corneal surface (keratoconus, corneal refractive surgery) is well-documented in the literature. However, several conditions may induce a different behavior of the epithelium,
Mª Victoria de Rojas Silva +2 more
doaj +2 more sources
Topography-Guided Trans-Epithelial No-Touch Photorefractive Keratectomy for High Irregular Astigmatism After Penetrating Keratoplasty: A Prospective 12-Months Follow-Up [PDF]
Therapeutics and Clinical Risk Management, 2021 Leopoldo Spadea, Giacomo Visioli, Davide Mastromarino, Shehani Alexander, Santino Pistella Eye Clinic, Policlinico Umberto 1, “Sapienza” University of Rome, Rome, ItalyCorrespondence: Leopoldo SpadeaHead Eye Clinic, Policlinico Umberto 1, “Sapienza ...
Spadea L +4 more
doaj +2 more sources
Evaluating anterior corneal surface using Placido ring mires for irregular astigmatism in refractory corneal subepithelial infiltrates after adenoviral conjunctivitis [PDF]
BMC OphthalmologyBackground Corneal subepithelial infiltrates (SEIs) are characteristic clinical findings of adenoviral keratoconjunctivitis (AKC). In eyes with SEIs, both corneal opacity and irregular astigmatism may interfere with vision. However, irregular astigmatism
Noriko Toyokawa +3 more
doaj +2 more sources