Results 51 to 60 of about 24,883 (298)
Screening subclinical keratoconus with Placido-based corneal indices [PDF]
, 2013 Purpose: To assess in a sample of normal, keratoconic and keratoconus suspect eyes the performance of a set of new topographic indices computed directly from the digitized images of the Placido rings.
Ramos López, Darío
core +2 more sources
The variability of corneal and anterior segment parameters in keratoconus [PDF]
, 2016 Purpose: To analyse, describe and test diverse corneal and anterior segment parameters in normal and keratoconic eyes to better understand the geometry of the keratoconic cornea. Method: 44 eyes from 44 keratoconic patients and 44 eyes from 44 healthy
Cardona Torradeflot, Genís +3 more
core +1 more source
Measurement of Angle Kappa Using Ultrasound Biomicroscopy and Corneal Topography
Korean Journal of Ophthalmology, 2017 Purpose To introduce a new convenient and accurate method to measure the angle kappa using ultrasound biomicroscopy (UBM) and corneal topography. Methods Data from 42 eyes (13 males and 29 females) were analyzed in this study.
J. Yeo, N. Moon, Jeong Kyu Lee
semanticscholar +1 more source
Fractal and Fractional, 2022 Fractal dimension (FD) together with advances in imaging technologies has provided an increasing application of digital images to interpret biological phenomena.
Shima Bahramizadeh-Sajadi +5 more
doaj +1 more source
Revista Brasileira de Oftalmologia, 2013 PURPOSE: To evaluate the changes in corneal topography after 20-gauge pars plana vitrectomy associated with scleral buckling for the repair of rhegmatogenous retinal detachment.
Alexandre Achille Grandinetti +5 more
doaj +1 more source
Artificial Tear Instillation-Induced Changes in Corneal Topography. [PDF]
Bioengineering (Basel)This study aims to compare changes of corneal topography (Galilei G4) before and after the instillation of artificial tears in patients with dry eye disease (DED).
Lee Y, Kim TH, Paik HJ, Kim DH.
europepmc +2 more sources
Corneal topography by keratometry [PDF]
British Journal of Ophthalmology, 2000 To investigate the ability of a telecentric keratometer to describe the asphericity and curvature of convex ellipsoidal surfaces and human corneas.22 conicoidal convex surfaces and 30 human corneas were examined by conventional keratometry. Additional keratometric measurements were made when the surface was tilted in the horizontal plane relative to ...
W A, Douthwaite, W T, Evardson
openaire +2 more sources
A comparison of two conjunctival rotation autograft techniques in primary pterygium surgery. [PDF]
, 2017 PURPOSE: To compare the effects of 90° and 180° conjunctival rotational autograft (CRA) techniques used in primary pterygium surgery. METHODS: Forty-five patients were included in this retrospective study. Visual acuity (VA), corneal topography, and auto-
Aksoy, Umit +7 more
core +2 more sources
Placido-based indices of corneal irregularity [PDF]
, 2011 Purpose: To construct a set of metrics computed from the raw keratoscopic data collected by any Placido corneal topographer. These indices that measure the irregularity of the anterior corneal surface are computed directly from the image of the mires ...
Ramos López, Darío
core +1 more source
Journal of refractive surgery, 2019 PURPOSE To investigate whether topography-guided laser in situ keratomileusis (LASIK) with anterior corneal astigmatism measured on the WaveLight Contoura (Alcon Laboratories, Inc., Fort Worth, TX) leads to better refractive outcomes compared to treating
Avi Wallerstein +4 more
semanticscholar +1 more source