Results 1 to 10 of about 35,254 (280)

Keratoconus enlargement as a predictor of keratoconus progression [PDF]

Scientific Reports, 2021
Numerous approaches have been designated to document progression in keratoconus, nevertheless there is no consistent or clear definition of ectasia progression.
Ana Maria Cunha, Paulo Jorge Correia, Hélio Alves, Luís Torrão, Raúl Moreira, Fernando Falcão-Reis, João Pinheiro-Costa   +6 more
doaj   +3 more sources

Different keratoconus definitions can lead to substantial prevalence disparities in population-based studies [PDF]

Scientific Reports
This report explores the prevalence of keratoconus in a population-based cohort of adults aged 40 or older according to ten different definitions. All Rotterdam Study participants with reliable Pentacam scans and no prior corneal refractive surgery were ...
Hasan Shabani, Bart T. H. van Dooren, Magda A. Meester-Smoor, Annette A. J. M. Geerards, Caroline C. W. Klaver, Wishal D. Ramdas   +5 more
doaj   +2 more sources

Keratoconus [PDF]

Eye, 1987
Y. Pouliquen
openaire   +4 more sources

New Keratoconus Risk Factors: A Cross-Sectional Case—Control Study

Journal of Ophthalmology, 2022
Purpose. To evaluate risk factors associated with keratoconus in a monocentric cross-sectional case-control study. Methods. This observational study occurred from June 2019 to February 2021 in a university hospital (France).
Eloi Debourdeau, Gabriel Planells, Chloe Chamard, David Touboul, Max Villain, Pascal Demoly, Fanny Babeau, Pierre Fournie, Vincent Daien   +8 more
doaj   +1 more source

Contrast sensitivity and higher-order aberrations in Keratoconus subjects

Scientific Reports, 2021
This study analyzes the relationship between contrast-sensitivity and higher-order aberrations (HOA) in mild and subclinical-keratoconus in subjects with good visual-acuity (VA).
Einat Shneor, David P. Piñero, Ravid Doron   +2 more
doaj   +1 more source

Anterior segment characteristics in normal and keratoconus eyes evaluated with a new type of swept-source optical coherence tomography.

PLoS ONE, 2022
PurposeThis study aimed to evaluate and compare the discriminating ability of corneal elevation maps generated using a swept-source optical coherence tomography (SS-OCT) (SS-OCT ANTERION, Heidelberg Engineering, Heidelberg, Germany), which was estimated ...
Kook Young Kim, Seongjun Lee, Young Joon Jeon, Ji Sang Min   +3 more
doaj   +1 more source

The correlation between keratoconus and eye rubbing: a review [PDF]

International Journal of Ophthalmology, 2019
Keratoconus is a non-inflammatory disorder which is gradual in development; corneal thinning and ectatic protrusion characterizes it. Keratoconus prevalence varies between different regions depending on several factors that affecting its prevalence ...
Hatim Najmi, Yara Mobarki, Khalid Mania, Bashaer Altowairqi, Mohammed Basehi, Mohammed Salih Mahfouz, Mona Elmahdy   +6 more
doaj   +1 more source

In-vivo corneal biomechanical analysis of unilateral keratoconus [PDF]

International Journal of Ophthalmology, 2015
AIM: To evaluate and compare corneal biomechanical findings measured by ocular response analyzer, topographic and pachymetric findings in patients with unilateral keratoconus patients and healthy controls. METHODS: This is an observational, case-control
Orhan Ayar, Mehmet Cuneyt Ozmen, Orkun Muftuoglu, Mehmet Orcun Akdemir, Mustafa Koc, Kemal Ozulken   +5 more
doaj   +1 more source

Single-cell atlas of keratoconus corneas revealed aberrant transcriptional signatures and implicated mechanical stretch as a trigger for keratoconus pathogenesis

Cell Discovery, 2022
Keratoconus is a common ectatic corneal disorder in adolescents and young adults that can lead to progressive visual impairment or even legal blindness. Despite the high prevalence, its etiology is not fully understood. In this study, we performed single-
Shengqian Dou, Qun Wang, Bin Zhang, Chao Wei, Huijin Wang, Ting Liu, Haoyun Duan, Hui Jiang, Mingna Liu, Xiaolin Qi, Qingjun Zhou, Lixin Xie, Weiyun Shi, Hua Gao   +13 more
doaj   +1 more source

Prevalence and risk factors of keratoconus (including oxidative stress biomarkers) in a cohort study of Shiraz university of medical science employees in Iran

BMC Ophthalmology, 2023
Background To determine the prevalence of keratoconus in Shiraz University of Medical Sciences Employees and the related risk factors including oxidative stress biomarkers. Methods 2546 subjects’ mean age ± SD, 40.35 ± 6.70 (46% male) were recruited. All
Sahar Mohaghegh, Haleh Kangari, Seyed Jalil Masoumi, Shahram Bamdad, Saeed Rahmani, Saeed Abdi, Nagham Fazil, Saeedeh Shahbazi   +7 more
doaj   +1 more source