Results 41 to 50 of about 387,914 (235)
Exploiting the Generative Adversarial Network Approach to Create a Synthetic Topography Corneal Image [PDF]
Biomolecules, 2022, 2022 Corneal diseases are the most common eye disorders. Deep learning techniques are used to per-form automated diagnoses of cornea. Deep learning networks require large-scale annotated datasets, which is conceded as a weakness of deep learning. In this work, a method for synthesizing medical images using conditional generative adversarial networks (CGANs),
arxiv +1 more source
Analysis of keratometric measurements in accordance with axial length in an aged population
Scientific Reports, 2022 To investigate keratometric measurements according to axial length in an aged population. Patients requiring cataract surgery with keratometric measurements from four different ophthalmic devices (autorefractor/keratometer, Scheimpflug imaging, corneal ...
Sung Uk Han +7 more
doaj +1 more source
Frontiers in Bioengineering and Biotechnology, 2022 Purpose: To investigate the safety and efficacy of topography-guided transepithelial accelerated corneal collagen cross-linking for low refractive error correction in patients with keratoconus.Methods: This was a prospective self-controlled study ...
Ling Sun +11 more
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Türk 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
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
doaj +1 more source
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
doaj +1 more source
Corneal retardation time as an ocular hypertension disease indicator [PDF]
Biomedical Physics & Engineering Express, 2023, 2023 Objective. A detailed analysis of the corneal retardation time $\tau$ as a highly related parameter to the intraocular pressure (IOP), and its plausible role as an indicator of ocular hypertension disease. Approach. A simple theoretical expression for $\tau$ is derived within the corneal viscoelastic model of Kelvin-Voigt with 3 elements.
arxiv +1 more source
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
doaj +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