Results 81 to 90 of about 24,361 (241)

A Comprehensive Evaluation of the Precision (Repeatability and Reproducibility) of the Oculus Pentacam HR [PDF]

, 2011
This article is made available with the permission of the publisher, Association for Research in Vision and OphthalmologyPurpose.: To evaluate the precision (repeatability and reproducibility) of the Pentacam HR (high-resolution) tomographer (Oculus ...
Khadka, Jyoti, McAlinden, Colm, Pesudovs, Konrad   +2 more
core   +1 more source

Central corneal thickness of Iraqi population in relation to age, gender, refractive errors, and corneal curvature: a hospital-based cross-sectional study

Clinical Ophthalmology, 2016
Yasir Jawad Kadhim,1 Qasim K Farhood2 1Ibn Al Haitham Teaching Eye Hospital, Baghdad, 2Department of Ophthalmology, College of Medicine, University of Babylon, Babylon, Iraq Background: Central corneal thickness (CCT) is an important indicator of ...
Kadhim YJ, Farhood QK
doaj  

Effect of ageing on keratoconic corneas

Journal of Optometry, 2016
Purpose: To explore the potential effect of ageing on the corneal curvature and corrected visual acuity in patients with long-term keratoconus because of the paucity of these patients older than 50 years. Methods: Records of keratoconic patients, who had
Michel Millodot, Ilya Ortenberg, Karen Lahav-Yacouel, Shmuel Behrman   +3 more
doaj   +1 more source

Differences in anterior chamber depth in keratoconus patients with binocular very asymmetry ectasia

BMC Ophthalmology
Background To evaluate the difference in anterior chamber depth (ACD) between two eyes among keratoconus patients with binocular very asymmetric ectasia (VAE) and to explore the influencing factors.
Zizhen Wang, Haowen Ma, Yu Zhang, Yifei Yuan, Yan Liu, Yueguo Chen   +5 more
doaj   +1 more source

Increased Corneal Toricity after Long-Term Orthokeratology Lens Wear

Journal of Ophthalmology, 2018
Purpose. To investigate the change in corneal toricity and associated refractive astigmatism after discontinuation of long-term orthokeratology (ortho-k) lens wear. Methods. This study investigated 136 subjects aged between 6 and 14 (9.1 ± 1.5) years old
Zhi Chen, Jiaqi Zhou, Feng Xue, Xingtao Zhou, Xiaomei Qu   +4 more
doaj   +1 more source

Astigmatism and Pseudoaccommodation in Pseudophakic Eyes [PDF]

, 2010
noAdvanced IOLs with circumferential zones of different power provide pseudoaccommodation. We investigated the potential for power variation with meridian, namely astigmatism, to provide pseudo-accommodation. With appropriate power and axis orientations,
Chisholm, Catharine M., Cox, Michael J., Serra, Pedro M.F.N.   +2 more
core  

Comparison of Corneal Parameters of Children with Diabetes Mellitus and Healthy Children

Journal of Ophthalmology, 2019
Purpose. To compare differences in central corneal thickness (CCT), corneal curvature, and other corneal measurements of children with diabetes mellitus (DM) and healthy children, and to investigate related factors. Methods. This was a case-control study.
Shanshan Wang, Yan Jia, Tao Li, Anken Wang, Lu Gao, Chenhao Yang, Haidong Zou   +6 more
doaj   +1 more source

Genetic Variants nearPDGFRAAre Associated with Corneal Curvature in Australians [PDF]

, 2012
Aniket Mishra, Seyhan Yazar, Alex W. Hewitt, Jenny A. Mountain, Wei Ang, Craig E. Pennell, Nicholas G. Martin, Grant W. Montgomery, Christopher J. Hammond, Terri L. Young, Stuart MacGregor, David A. Mackey   +11 more
openalex   +1 more source

COVID-19 related changes in corneal curvature and endothelium after mild infection

Photodiagnosis and Photodynamic Therapy
Purpose: To investigate subclinical corneal changes using corneal topography in the evaluation of corneal curvature and specular microscopy in the evaluation of the endothelial layer after mild coronavirus disease 2019 (COVID-19).
Fatma Sümer, Sevgi Subaşi, Süleyman Karaman   +2 more
doaj   +1 more source

Template Curvature Influences Cell Alignment to Create Improved Human Corneal Tissue Equivalents [PDF]

, 2017
Ricardo M. Gouveia, Elena Koudouna, James V. Jester, Francisco C. Figueiredo, Che J. Connon   +4 more
openalex   +1 more source