Results 21 to 30 of about 10,303 (219)

Comparison of Conventional Keratometry and Total Keratometry in Normal Eyes [PDF]

open access: yesBioMed Research International, 2020
Purpose. The relationship between conventional keratometry and total keratometry has not been fully investigated. This study was aimed at conventional keratometry measured with the automated keratometer and total keratometry with the corneal tomographer in ophthalmologically normal subjects. Methods.
Rie Hoshikawa   +3 more
openaire   +2 more sources

Comparative Analysis of Corneal Parameters Performed with GalileiG6 and OCT Casia 2

open access: yesDiagnostics, 2023
Backgrounds: To compare keratometry (Ks and Kf), astigmatism (Ast.), and the astigmatism axes (Ax.) of the posterior surface of the cornea; the total, central cornea thickness (CCT); and the thinnest corneal thickness (TCT) measured using two different ...
Robert Mazur   +3 more
doaj   +1 more source

Factors influencing haze formation and corneal flattening, and the impact of haze on visual acuity after conventional collagen cross-linking: a 12-month retrospective study

open access: yesBMC Ophthalmology, 2021
Background Our aim was to determine associations of pachymetry, keratometry, and their changes with haze formation and corneal flattening after collagen cross-linking, and to analyse the relationship between postoperative haze and visual outcome. Methods
Anita Csorba   +6 more
doaj   +1 more source

Selection of keratometric data for the IOL toricity calculation

open access: yesОфтальмохирургия, 2023
Purpose. To elaborate the customized principle of determining the actual zone of the corneal astigmatism based on keratotopographic data and compare the accuracy of calculating the toric IOL according to the actual zone and conventional keratometry ...
S.V. Shukhaev
doaj   +1 more source

Corneal topography by keratometry [PDF]

open access: yesBritish Journal of Ophthalmology, 2000
To investigate the ability of a telecentric keratometer to describe the asphericity and curvature of convex ellipsoidal surfaces and human corneas.22 conicoidal convex surfaces and 30 human corneas were examined by conventional keratometry. Additional keratometric measurements were made when the surface was tilted in the horizontal plane relative to ...
W A, Douthwaite, W T, Evardson
openaire   +2 more sources

Estimation of surgically induced astigmatism after small-incision cataract surgery done by junior residents

open access: yesIndian Journal of Ophthalmology, 2023
Purpose: To estimate the postoperative astigmatism after small-incision cataract surgery (SICS) done by junior residents at the end of 1 and 3 months. Methods: This observational longitudinal study was conducted at the Department of Ophthalmology of a ...
Uttkarsha D Thakre   +2 more
doaj   +1 more source

Error induced by the estimation of the corneal power and the effective lens position with a rotationally asymmetric refractive multifocal intraocular lens [PDF]

open access: yesInternational Journal of Ophthalmology, 2015
AIM:To evaluate the prediction error in intraocular lens (IOL) power calculation for a rotationally asymmetric refractive multifocal IOL and the impact on this error of the optimization of the keratometric estimation of the corneal power and the ...
David P. Piñero   +4 more
doaj   +1 more source

Repeatability of manual and portable handheld automated keratometric measurements in pediatric population

open access: yesJournal of Clinical Ophthalmology and Research, 2018
Background: The cornea is not only responsible for the majority of the refraction of the eye, but is also readily accessible for measurement and modification.
Kunal Kaushik   +2 more
doaj   +1 more source

Accelerated versus Standard Corneal Cross-linking for Progressive Keratoconus in Syria

open access: yesJournal of Ophthalmic & Vision Research, 2021
Purpose: To compare the outcomes of accelerated versus standard corneal cross-linking for the treatment of progressive keratoconus. Methods: In this retrospective comparative study, 63 eyes of 40 patients with progressive keratoconus were divided into ...
Abdelrahman M Salman   +4 more
doaj   +1 more source

Predicted incidence of free flap by keratometry.

open access: yes, 2021
Predicted incidence of free flap by keratometry.
Vasyl Druckiv (11372576)   +4 more
core   +1 more source

Home - About - Disclaimer - Privacy