Results 21 to 30 of about 13,516 (182)

Quantitative comparison of corneal surface areas in keratoconus and normal eyes

open access: yesScientific Reports, 2021
Keratoconus is a highly prevalent corneal disorder characterized by progressive corneal thinning, steepening and irregular astigmatism. To date, pathophysiology of keratoconus development and progression remains debated. In this study, we retrospectively
François-Xavier Crahay   +5 more
doaj   +1 more source

Prevalence of keratoconus in persons with Down syndrome: a review

open access: yesBMJ Open Ophthalmology, 2021
Purpose Keratoconus is a vision-threatening condition, and there is a need for knowledge about the occurrence in subgroups of the population. The progression of the disease can be effectively stopped, and vision may be restored, if keratoconus is ...
Liv Drolsum, Olav Kristianslund
doaj   +1 more source

Corneal Volume Measurements with Pentacam for Detection of Keratoconus and Subclinical Keratoconus

open access: yesTürk Oftalmoloji Dergisi, 2013
Pur po se: To estimate the sensitivity and specificity of corneal volume (CV) measurements in discriminating keratoconus and subclinical keratoconus from normal corneas. Ma te ri al and Met hod: Clinical records and Pentacam measurements of ninety-four
Nurullah Çağıl   +5 more
doaj   +1 more source

Biocompatibility and Biomechanical Effect of Single Wall Carbon Nanotubes Implanted in the Corneal Stroma: A Proof of Concept Investigation

open access: yesJournal of Ophthalmology, 2016
Corneal ectatic disorders are characterized by a progressive weakening of the tissue due to biomechanical alterations of the corneal collagen fibers.
Alfredo Vega-Estrada   +7 more
doaj   +1 more source

Evaluation of Scheimpflug Tomography Parameters in Subclinical Keratoconus, Clinical Keratoconus and Normal Caucasian Eyes

open access: yesTürk Oftalmoloji Dergisi, 2018
Objectives: To evaluate tomographic and topographic parameters in subclinical and clinical keratoconus eyes by comparing them with normal eyes in a young Caucasian population. Materials and Methods: This cross-sectional study included 88 normal eyes
Samira Huseynli, Farah Abdulaliyeva
doaj   +1 more source

Advance in Keratoconus Biomechanics

open access: yesTaiyuan Ligong Daxue xuebao, 2022
Keratoconus is a bilateral asymmetric corneal dilatation disease characterized by localized thinning and increased curvature of cornea. The alteration of the mechanical properties occurs earlier than morphological change owing to corneal structure ...
Junchao WEI, Xiaona LI
doaj   +1 more source

A predictive model for early diagnosis of keratoconus

open access: yesBMC Ophthalmology, 2020
Background The diagnosis of keratoconus in the early stages of the disease is necessary to initiate an early treatment of keratoconus. Furthermore, to avoid possible refractive surgery that could produce ectasias.
Gracia Castro-Luna, Antonio Pérez-Rueda
doaj   +1 more source

Assessment of the Association between In Vivo Corneal Morphogeometrical Changes and Keratoconus Eyes with Severe Visual Limitation

open access: yesJournal of Ophthalmology, 2019
Assessing changes suffered by the cornea as keratoconus progresses has proven to be vital for this disease diagnosis and treatment. This study determines the corneal biometric profile in eyes considered as affected by keratoconus (KC) showing severe ...
J. S. Velázquez   +4 more
doaj   +1 more source

Assessment of Visual Quality in Eyes with Forme Fruste Keratoconus and Mild and Moderate Keratoconus Based on Optical Quality Analysis System II Parameters

open access: yesJournal of Ophthalmology, 2020
Purpose. The study aimed to evaluate the visual quality of forme fruste keratoconus (FFK) and mild and moderate keratoconus by using an optical quality analysis system II (OQAS-II) and to explore the correlation between optical quality parameters and the
Zhonghao Ren   +5 more
doaj   +1 more source

The genetics of keratoconus

open access: yesMiddle East African Journal of Ophthalmology, 2011
Keratoconus (KTCN) is non-inflammatory thinning and anterior protrusion of the cornea that results in steepening and distortion of the cornea, altered refractive error, and decreased vision. Keratoconus is a complex condition of multifactorial etiology. Both genetic and environmental factors are associated with KTCN.
Nowak, Dorota M., Gajecka, Marzena
openaire   +3 more sources

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