Results 11 to 20 of about 13,516 (182)

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 ...
Mona Elmahdy
exaly   +2 more sources

Scheimpflug tomographic changes across the keratoconus spectrum based on the modified Rabinowitz-McDonnell classification [PDF]

European Journal of Medical Research
Purpose To characterize spectrum-dependent changes in Scheimpflug tomographic parameters across normal, keratoconus suspect, and eyes with keratoconus classified using the modified Rabinowitz-McDonnell index.
Seher Köksaldı, Mustafa Kayabaşı, Ezgi Karataş, Yavuz Oruç   +3 more
doaj   +2 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

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

The pathogenesis of keratoconus [PDF]

Eye, 2013
Keratoconus (KC) is a common degenerative condition that frequently results in visual loss with an onset typically in early adulthood. It is the single most common reason for keratoplasty in the developed world. The cause and underlying pathological mechanism are unknown, but both environmental and genetic factors are thought to contribute to the ...
A E, Davidson, S, Hayes, A J, Hardcastle, S J, Tuft   +3 more
openaire   +2 more sources

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

Rare single nucleotide variants in COL5A1 promoter do not play a major role in keratoconus susceptibility associated with rs1536482

BMC Ophthalmology, 2021
Background Keratoconus is a chronic degenerative disorder of the cornea characterized by thinning and cone-shaped protrusions. Although genetic factors play a key role in keratoconus development, the etiology is still under investigation.
Liubov O. Skorodumova, Alexandra V. Belodedova, Elena I. Sharova, Elena S. Zakharova, Liliia N. Iulmetova, Mukharram M. Bikbov, Emin L. Usubov, Olga P. Antonova, Oksana V. Selezneva, Anastasia Levchenko, Olga Yu Fedorenko, Svetlana A. Ivanova, Raul R. Gainetdinov, Boris E. Malyugin   +13 more
doaj   +1 more source