Results 31 to 40 of about 26,868 (188)

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 ...
Alison J. Hardcastle, Sally Hayes, Stephen J Tuft, Alice E. Davidson   +3 more
openaire   +3 more sources

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

Journal 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, Joaquin Silvestre-Albero, Alejandra E. Rodriguez, Francisco Rodriguez-Reinoso, Jose A. Gomez-Tejedor, Carmen M. Antolinos-Turpin, Laurent Bataille, Jorge L. Alio   +7 more
doaj   +1 more source

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

Türk 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

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

Journal 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, F. Cavas, J. Alió del Barrio, D. G. Fernández-Pacheco, J. Alió   +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

Journal 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, Liyan Xu, Qi Fan, Kaili Yang, Shengwei Ren, Dongqing Zhao   +5 more
doaj   +1 more source

A predictive model for early diagnosis of keratoconus

BMC 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

Intrastromal corneal ring segments: how successful is the surgical treatment of keratoconus? [PDF]

, 2014
This review evaluates the outcomes of intrastromal corneal ring segment (ICRS) implantation for the treatment of keratoconus considering a new grading system based on the preoperative visual impairment of the patient.
Alio, JL, Barraquer, RI, Esperanza, S, Murta, JN, Teus, MA, Vega-Estrada, A   +5 more
core   +1 more source

Keratoconus

Nature Reviews Disease Primers
Keratoconus is a progressive eye disorder primarily affecting individuals in adolescence and early adulthood. The ectatic changes in the cornea cause thinning and cone-like steepening leading to irregular astigmatism and reduced vision. Keratoconus is a complex disorder with a multifaceted aetiology and pathogenesis, including genetic, environmental ...
Rohan Bir Singh, Shizuka Koh, Namrata Sharma, Fasika A. Woreta, Farhad Hafezi, Harminder S. Dua, Vishal Jhanji   +6 more
  +7 more sources

Comparative analysis of peripheral corneal geometry in health and Keratoconus [PDF]

, 2017
OBJECTIVES:: To describe and compare corneal peripheral angles in normal and keratoconic eyes, to gain a better understanding of the topography of the periphery of the cornea in keratoconus and assist practitioners in the selection and fitting of large ...
Cardona Torradeflot, Genís, Gispets Parcerisas, Joan, Lupón Bas, Núria, Mas Aixalà, Enric   +3 more
core   +2 more sources

Predictive ability of galilei to distinguish subclinical keratoconus and keratoconus from normal corneas

Journal of Ophthalmic & Vision Research, 2016
Purpose: To determine the predictive ability of different data measured by the Galilei dual Scheimpflug analyzer in differentiating subclinical keratoconus and keratoconus from normal corneas.
Sepehr Feizi, Mehdi Yaseri, Bahareh Kheiri   +2 more
doaj   +1 more source