Results 91 to 100 of about 76,743 (159)

Modificaciones de la curvatura posterior corneal después de la cirugía refractiva láser Modifications in the corneal posterior curve after laser refractive surgery

Revista Cubana de Oftalmología, 2011
OBJETIVO: Describir las modificaciones de la curvatura posterior corneal en pacientes sometidos a cirugía refractiva láser en el Instituto Cubano de Oftalmología "Ramón Pando Ferrer" en el período de mayo a octubre de 2010. MÉTODOS: Se realizó un estudio
Lorelei Ortega Díaz, Maygret Alberro Hernández, Anabel González Peña, María del Carmen Benítez Merino, Magela Elfa Rodríguez   +4 more
doaj  

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  

Comparison of Central Corneal Thickness Measurements Using Ultrasonic Pachymetry, Anterior Segment OCT and Noncontact Specular Microscopy

, 2017
To evaluate and compare central corneal thickness (CCT) values measured with anterior segment optical coherence tomography (AS-OCT), noncontact specular microscopy (NCSM), and ultrasound pachymetry (USP)
CUTOLO, CARLO ALBERTO, BAGNIS, ALESSANDRO, Riccardo Scotto, Carlo Enrico Traverso, PAPADIA, MARINA, TRAVERSO, CARLO, RISSO, DOMENICO, SCOTTO, RICCARDO, Carlo Alberto Cutolo, Domenico Risso, Alessandro Bagnis, Marina Papadia   +11 more
core   +1 more source

A comparison of rebound and applanation tonometry in children with and without primary congenital glaucoma

African Vision and Eye Health
Background: Intraocular pressure (IOP) measurement should be accurate in a paediatric population with primary congenital glaucoma (PCG). Aim: This study aims to investigate the difference between the change in IOP measurements using rebound tonometry ...
Hester Kruger, Naseer Ally, Natasha Naidu, Ismail Mayet   +3 more
doaj   +1 more source

Effect of a proparacaine 0.50%–sodium fluorescein 0.25% mix and contact ultrasound pachymetry on central and midperipheral corneal thickness measured by noncontact optical pachymetry

, 2011
Purpose To assess the effect of a combination of proparacaine 0.50%–sodium fluorescein 0.25% and ultrasound (US) pachymetry on central and midperipheral corneal thickness. Setting School of Optometry and Vision Sciences, Cardiff University, Cardiff,
North, Rachel Valerie, Rachel V. North, Hamilton-Maxwell, Kirsten, Ditipriya R. Mukhopadhyay, Kirsten E. Hamilton-Maxwell, Mukhopadhyay, Ditipriya R.   +5 more
core   +1 more source

Corneal Stress Distribution Evolves from Thickness-Driven in Normal Corneas to Curvature-Driven with Progression in Keratoconus

Ophthalmology Science
Purpose: To introduce the novel parameter of Corneal Contribution to Stress (CCS) and compare stress distribution patterns between keratoconus (KCN) and normal corneas. Design: Prospective, observational, cross-sectional study.
Cynthia J. Roberts, PhD, Kayla M. Knoll, MS, Ashraf M. Mahmoud, BS, Andrew J. Hendershot, MD, Phillip T. Yuhas, OD, PhD   +4 more
doaj   +1 more source

Bilateral manifestations of Terrien’s marginal degeneration: a case report

Delta Journal of Ophthalmology
A 35-year-old male patient attended our Outpatient Department with a complaint of diminution of vision in the left eye. He had a history of pterygium surgery in the left eye 20 days ago elsewhere.
Roopambara Singh Rathore, Anu Malik, Malvika Singh, Alka Gupta   +3 more
doaj   +1 more source

Intra-Examiner Repeatability and Agreement of Corneal Pachymetry Map Measurement by Time-Domain and Fourier-Domain Optical Coherence Tomography

, 2011
To assess the intra-examiner repeatability and agreement of corneal pachymetry maps measured by time-domain (Visante OCT ) and Fourier-domain optical coherence tomography (RTVue OCT ).
Huang, Jehn-Yu; Pekmezci, Melike; Yaplee, Stephanie; Lin, Shan, 黃振宇   +1 more
core   +1 more source

Central Corneal Thickness Measurements in Unoperated Eyes and Eyes After PRK For Myopia Using Pentacam, Orbscan II, and Ultrasonic Pachymetry

, 2007
PURPOSE: To compare central corneal thickness measurements obtained in unoperated eyes and eyes after myopic photorefractive keratectomy (PRK) using a rotating Scheimpflug camera (Pentacam), a scanning slit corneal topography system (Orbscan II), and ...
김태임, 김응권
core   +1 more source

Corneal Tomography and Biomechanical Characteristics in Siblings of Patients with Keratoconus: A Cross-Sectional Study

Life and Science
Objective: To assess and compare corneal tomographic and biomechanical characteristics between siblings of patients with keratoconus and healthy siblings of individuals without ocular pathology, aiming to detect early subclinical changes indicative of ...
Saira Ishaque Machlovi, Aisha Fawad, Aizaz Ali Shah, Azka Sohail, Amina Shabbir, Nimra Mehboob   +5 more
doaj   +1 more source