Results 1 to 10 of about 400,914 (301)

Comparison of Central Corneal Thickness Measurements by Ultrasonic Pachymetry and Orbscan II Corneal Topography and Evaluation of Ultrasonic Pachymetry Repeatability

open access: yesTürk Oftalmoloji Dergisi, 2014
Objectives: Comparison of central corneal thickness (CCT) measurements by ultrasonic pachymetry and Orbscan II corneal topography and evaluation of ultrasonic pachymetry repeatability for same observer. Materials and Methods: The study included 132, 82,
Semra Tiryaki Demir   +5 more
doaj   +1 more source

Patient selection for corneal topographic evaluation of keratoconus: A screening approach using artificial intelligence

open access: yesFrontiers in Medicine, 2022
BackgroundCorneal topography is a clinically validated examination method for keratoconus. However, there is no clear guideline regarding patient selection for corneal topography.
Hyunmin Ahn   +6 more
doaj   +1 more source

Characterization of corneal structure in keratoconus [PDF]

open access: yes, 2012
Producción CientíficaThe increasing volume of patients interested in refractive surgery and the new treatment options available for keratoconus have generated a higher interest in achieving a better characterization of this pathology.
López Miguel, Alberto   +2 more
core   +2 more sources

Accuracy and reliability of orthogonal polynomials in representing corneal topography

open access: yesMedicine in Novel Technology and Devices, 2022
Fitting of corneal topography data to analytical surfaces has been necessary in many clinical and experimental applications, yet absolute superiority of fitting methods was still unclear, and their overfitting risks were not well studied.
Junjie Wang   +9 more
doaj   +1 more source

Study of the dynamic tear film aberrations using a curvature sensing setup [PDF]

open access: yes, 2006
The advancement in adaptive optics in recent years has increased the interest in the dynamic aberrations of the eye, including those introduced by the first optical surface provided by the tear film.
Gruppetta, S., Lacombe, F., Puget, P.
core   +2 more sources

The corneal effects of intravitreal dexamethasone implantation

open access: yesTherapeutic Advances in Ophthalmology, 2020
Objectives: To evaluate the corneal effects of the intravitreal dexamethasone implantation using corneal topography and specular microscopy. Material and methods: 27 eyes of the 27 patients who received a single intravitreal dexamethasone implantation ...
Alper Halil Bayat   +3 more
doaj   +1 more source

Requirement of Pax6 for the integration of guidance cues in cell migration [PDF]

open access: yes, 2017
Data accessibility. Cell trajectories data and a summary of directedness and angle values are deposited at Dryad: http://dx.doi.org/10.5061/dryad.53512.
Arocena, Miguel   +2 more
core   +1 more source

The variability of corneal and anterior segment parameters in keratoconus [PDF]

open access: yes, 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

Treatment of irregular astigmatism by topography-guided ablation [PDF]

open access: yesRevista Brasileira de Oftalmologia
Topography-guided ablation was designed to improve corneal regularity throughout the correction of corneal high order aberrations. The present report described three cases with different indications for topography-guided ablation to correct irregular ...
Adriana Geremias Toni   +5 more
doaj   +1 more source

Development of Contact Lens Suitability System (ClenSyst) [PDF]

open access: yes, 2009
This paper proposes a system that can determine the suitability of contact lenses usage.The aim of this work is to provide a decision making system by using the application of fuzzy logic to analyze and decide the appropriate type of contact lenses based
Che Hamzah, Jemaima   +3 more
core   +1 more source

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