Results 11 to 20 of about 10,825 (176)

Corneal Topography: Sirius

open access: yesDelhi Journal of Ophthalmology, 2021
Present-day corneal tomography analysis has improved accuracy of corneal contour detection and is considered extremely valuable in the diagnosis of subclinical keratoconus.
Jigyasa Sahu
doaj   +1 more source

Evaluation of the effectiveness of combined staged surgical treatment in patients with keratoconus

open access: yesPLoS ONE, 2022
Purpose This study performs comparative assessment of the results of different types of two-stage surgical treatment in patients with keratoconus, including combination of corneal collagen cross-linking with intrastromal corneal ring segments followed by
Polad M. Maharramov, Fidan A. Aghayeva
doaj   +2 more sources

Analysis of keratometric measurements in accordance with axial length in an aged population

open access: yesScientific Reports, 2022
To investigate keratometric measurements according to axial length in an aged population. Patients requiring cataract surgery with keratometric measurements from four different ophthalmic devices (autorefractor/keratometer, Scheimpflug imaging, corneal ...
Sung Uk Han   +7 more
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

Topography-Guided Transepithelial Accelerated Corneal Collagen Cross-Linking for Low Refractive Error Correction in Keratoconus Treatment: A Pilot Study

open access: yesFrontiers in Bioengineering and Biotechnology, 2022
Purpose: To investigate the safety and efficacy of topography-guided transepithelial accelerated corneal collagen cross-linking for low refractive error correction in patients with keratoconus.Methods: This was a prospective self-controlled study ...
Ling Sun   +11 more
doaj   +1 more source

Repeatability of Corneal Topography: The "Corneal Field" [PDF]

open access: yesJournal of Refractive Surgery, 1995
ABSTRACT BACKGROUND: The purpose of this study was to determine the interoccasion repeatability of keratometry, photokeratography, and videokeratography and to describe the "corneal field," a scheme for explaining videokeratography results.
K, Zadnik, N E, Friedman, D O, Mutti
openaire   +4 more sources

Comparison of Central Corneal Thickness Measurements by Ultrasonic Pachymetry and Orbscan II Corneal Topography and Evaluation of Ultrasonic Pachymetry Repeatability

open access: yesTürk Oftalmoloji Dergisi, 2014
Objectives: Comparison of central corneal thickness (CCT) measurements by ultrasonic pachymetry and Orbscan II corneal topography and evaluation of ultrasonic pachymetry repeatability for same observer. Materials and Methods: The study included 132, 82,
Semra Tiryaki Demir   +5 more
doaj   +1 more source

Patient selection for corneal topographic evaluation of keratoconus: A screening approach using artificial intelligence

open access: yesFrontiers in Medicine, 2022
BackgroundCorneal topography is a clinically validated examination method for keratoconus. However, there is no clear guideline regarding patient selection for corneal topography.
Hyunmin Ahn   +6 more
doaj   +1 more source

The corneal effects of intravitreal dexamethasone implantation

open access: yesTherapeutic Advances in Ophthalmology, 2020
Objectives: To evaluate the corneal effects of the intravitreal dexamethasone implantation using corneal topography and specular microscopy. Material and methods: 27 eyes of the 27 patients who received a single intravitreal dexamethasone implantation ...
Alper Halil Bayat   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy