Results 21 to 30 of about 297,400 (209)
Accuracy and reliability of orthogonal polynomials in representing corneal topography
Medicine 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
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Frontiers 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
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The corneal effects of intravitreal dexamethasone implantation
Therapeutic 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
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Reverse engineering as a teaching tool: the corneal topographer [PDF]
, 2012 Reverse engineering is the process of discovering the technological principles of a device, object or system through analysis of its structure, function, and operation.
Mas, David +6 more
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Treatment of irregular astigmatism by topography-guided ablation [PDF]
Revista Brasileira de OftalmologiaTopography-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
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Sustained convergence, axial length, and corneal topography [PDF]
, 2010 Purpose: To investigate the influence of convergence on axial length and corneal topography in young adult subjects.----------\ud Methods: Fifteen emmetropic young adult subjects with normal binocular vision had axial length and corneal topography ...
Woodman, Emily +3 more
core +1 more source
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 +6 more
doaj +1 more source
Corneal Pachymetric Topography
Ophthalmology, 1994 The authors developed a system for producing topographic pachymetric maps of the corneal epithelium and anterior scar tissue.The system uses high-frequency ultrasound scanning enhanced by digital signal processing. Ultrasonic echo data from consecutive parallel B-scans of the cornea spaced at 250-microns intervals are digitized and stored.
D Z, Reinstein +3 more
openaire +2 more sources
Corneal topography and tomography
Journal of Clinical Ophthalmology and Research, 2015 Devices that evaluate corneal properties are an indispensible tool in a eye clinic nowadays. With the arrival of new technology in addition to placido based devices, the options available now are many. Cornea based refractive surgery in Indian eyes poses
Sachin Dharwadkar, B K Nayak
doaj +1 more source