Results 91 to 100 of about 313,255 (170)

Corneal topography with Scheimpflug imaging and videokeratography : comparative study of normal eyes [PDF]

, 2009
PURPOSE: To compare the repeatability within anterior corneal topography measurements and agreement between measurements with the Pentacam HR rotating Scheimpflug camera and with a previously validated Placido disk–based videokeratoscope (Medmont E300). -
Read, Scott A., Iskander, Robert, Davis, Brett A., Collins, Michael J., Michael J. Collins, Scott A. Read, Brett A. Davis, Robert D. Iskander   +7 more
core   +1 more source

Comparison of Surgically-induced Astigmatism using Topography and Keratometry in Patients undergoing Phacoemulsification and Small Incision Cataract Surgery: A Prospective Interventional Study [PDF]

Journal of Clinical and Diagnostic Research
Introduction: Topographic measurement of corneal astigmatism is the current standard of care because, in addition to measuring corneal astigmatism, it identifies irregular astigmatism, which may limit optimum surgical results.
Indrajit Shinde, Ajit Joshi, Aishwarya Pandharikar   +2 more
doaj   +1 more source

The Clinical Significance of the Early Screening of Keratoconus and Its Impact on Maintaining Quality of Life

Life
Background: This study focuses on the diagnosis and treatment of keratoconus in the early stage and aims to identify the environmental and risk factors that contribute to its progression.
Mimoza Ismaili
doaj   +1 more source

Feasibility of intraoperative corneal topography monitoring during photorefractive keratectomy

, 2000
PURPOSE: We propose a feasibility study of new corneal topography technology with the aim of monitoring intraoperative corneal topography during excimer laser photorefractive keratectomy.
McDonnell, P., Psaltis, D., Moser, C., Kampmeier, J., Juergen Kampmeier, D Psaltis, Peter McDonnell, Christophe Moser   +7 more
core   +1 more source

Corneal topography in contact lens practice

, 1996
Corneal topography in contact lens ...
Craig Woods (13065261)
core  

Pentacam-Based Evaluation of Corneal Topographic Changes in Vernal Keratoconjunctivitis

TNOA Journal of Ophthalmic Science and Research
Purpose: To assess Pentacam-based corneal changes in patients with vernal keratoconjunctivitis (VKC) and to detect early signs of ectasia. Methods: A cross-sectional study was conducted from September 2025 to November 2025, in which 22 patients with VKC ...
M. N. Abhilasha, A. Sahana, Kshirin Jain
doaj   +1 more source

The effects of spherical and aspheric rigid gas permeable contact lens: Corneal curvature and topography changes

, 1995
The purpose of this study was to evaluate the performance of a rigid, posterior surface aspheric contact lens compared with a spherical contact lens. A total of 13 subjects were fitted with an aspheric lens in one eye and a spherical lens in the other ...
Carney, Leo G., Shwallie, Joseph D., Barr, Joseph T., Joseph T. Barr, Leo G. Carney, Joseph D. Schwallie   +5 more
core   +1 more source

Evaluating anterior corneal surface using Placido ring mires for irregular astigmatism in refractory corneal subepithelial infiltrates after adenoviral conjunctivitis

BMC Ophthalmology
Background Corneal subepithelial infiltrates (SEIs) are characteristic clinical findings of adenoviral keratoconjunctivitis (AKC). In eyes with SEIs, both corneal opacity and irregular astigmatism may interfere with vision. However, irregular astigmatism
Noriko Toyokawa, Kaoru Araki-Sasaki, Hideya Kimura, Shinichiro Kuroda   +3 more
doaj   +1 more source

Effect of ocular hypotony secondary to cyclodialysis cleft on corneal topography

, 2008
PURPOSE:\ud \ud To report the changes in corneal topography in 2 cases of ocular hypotony induced by cyclodialysis cleft after blunt trauma, which were successfully treated by argon laser photocoagulation.\ud \ud METHODS:\ud \ud For both patients, a full
Razeghinejad, Mohammad Reza, Dehghani, Cirous; id_orcid, Dehghani, Cirous   +2 more
core   +1 more source

Precision of pachymetric measurements with Scheimpflug –Placido disc cornealTopography and comparison of these measurements with ultrasonic pachymetry

مجله كليه طب الكندي, 2015
Back ground: Several devices with different physical bases have been developed for the clinical measurement of corneal thickness, they classified into 4 categories: Scheimpflug photography based, Slit –Scanning topography, optical coherence tomography ...
Suzan Amana Rattan
doaj