Results 71 to 80 of about 397,483 (200)

Non-invasive Clinical Measurement of Ocular Rigidity and Comparison to Biomechanical and Morphological Parameters in Glaucomatous and Healthy Subjects

Frontiers in Medicine, 2021
Purpose: To assess ocular rigidity using dynamic optical coherence tomography (OCT) videos in glaucomatous and healthy subjects, and to evaluate how ocular rigidity correlates with biomechanical and morphological characteristics of the human eye.Methods:
Yanhui Ma, Sayoko E. Moroi, Cynthia J. Roberts, Cynthia J. Roberts   +3 more
doaj   +1 more source

Intraocular Pressure Increase Induced by 0.5% Tropicamide‐0.5% Phenylephrine in Dogs: An Analysis of Causes Using Ultrasound Biomicroscopy

Veterinary Ophthalmology, EarlyView.
ABSTRACT Purpose To determine whether the differences in intraocular pressure (IOP) change after the topical application of 0.5% tropicamide and 0.5% phenylephrine (TP) are due to anatomical variations in the anterior chamber using ultrasound biomicroscopy (UBM).
Donghee Kim, Sang‐Eun Park, Haerin Yoon, Jiyi Hwang, Ji Seung Jung, Soohyun Kim, Kyung‐Mee Park   +6 more
wiley   +1 more source

The impact of central corneal thickness on values of intraocular pressure measured using two methods: Goldmann applanation and dynamic contour tonometry in patients with open-angle glaucoma [PDF]

Halo 194, 2020
Introduction Dynamic contour tonometry (DCT) is a contact, non-applanation method for measuring intraocular pressure (IOP). Objektive The study aimed at evaluating the impact of central corneal thickness (CCT) on values of IOP measured using two methods:
Jordanova Elena, Hentova-Senćanić Paraskeva, Marjanović Ivan, Senćanić Ivan, Stefanović Ivana, Baralić Marko   +5 more
doaj  

A Hybrid Deep Learning Paradigm for Robust Feature Extraction and Classification for Cataracts

Applied AI Letters, Volume 6, Issue 2, April 2025.
Workflow for automated ocular disease diagnosis using CNN‐based feature extraction and SVM classification, optimized with Intel one DNN. ABSTRACT The study suggests using a hybrid convolutional neural networks‐support vector machines architecture to extract reliable characteristics from medical images and classify them as an ensemble using four ...
Akshay Bhuvaneswari Ramakrishnan, Mukunth Madavan, R. Manikandan, Amir H. Gandomi   +3 more
wiley   +1 more source

Non-Invasive Ocular Rigidity Measurement: A Differential Tonometry Approach

Acta Medica, 2015
Purpose: Taking into account the fact that Goldmann applanation tonometry (GAT) geometrically deforms the corneal apex and displaces volume from the anterior segment whereas Dynamic Contour Tonometry (DCT) does not, we aimed at developing an algorithm ...
Efstathios T. Detorakis, Emmanuela Tsaglioti, George Kymionis   +2 more
doaj   +1 more source

Wireless Power and Data Transfer Technologies for Flexible Bionic and Bioelectronic Interfaces: Materials and Applications

Advanced Materials Technologies, Volume 10, Issue 5, March 4, 2025.
This paper reviews the state‐of‐the‐art and recent advances in bio‐integrated wireless power and data transfer technologies for flexible bionics, wearable and implantable bioelectronics. The architectures, operating principles, materials, and application technologies are presented in detail.
Massimo Mariello, Christopher M. Proctor
wiley   +1 more source

E2EC: An End-to-End Contour-based Method for High-Quality High-Speed Instance Segmentation [PDF]

arXiv, 2022
Contour-based instance segmentation methods have developed rapidly recently but feature rough and hand-crafted front-end contour initialization, which restricts the model performance, and an empirical and fixed backend predicted-label vertex pairing, which contributes to the learning difficulty. In this paper, we introduce a novel contour-based method,
arxiv  

Graphene‐Based Pressure Sensor Application in Non‐Invasive Pulse Wave Velocity Continuous Estimation

Advanced Materials Technologies, Volume 10, Issue 5, March 4, 2025.
A non‐invasive device prototype for pulse wave velocity (PWV) measurement is presented, based on a piezoelectric graphene pressure sensor incorporating advanced electronic components and data analysis tools. Tests performed within clinical environment, showed statistical similarity to results obtained using the established standard for PWV estimation ...
Irene Buraioli, Stefania Vitale, Andrea Valerio, Alessandro Sanginario, Dario Leone, Sabrina Conoci, Artur Ciesielski, Alberto Milan, Danilo Demarchi, Paolo Samorì   +9 more
wiley   +1 more source

Increased Ocular Pulse Amplitude Associated with Unilateral Dysgenesis of the Orbital Roof

Case Reports in Ophthalmology, 2015
Introduction: Two patients (one with neurofibromatosis type 1) presented with unilateral ocular pulsation. Methods: A CT scan of the orbits revealed extensive dysgenesis of the orbital roof with herniation of the frontal lobe into the orbit in both cases.
Ami Shah Vira, Ashraf M. Mahmoud, Cynthia J. Roberts, Steven E. Katz   +3 more
doaj   +1 more source

Snaxels on a Plane [PDF]

, 2019
While many algorithms exist for tracing various contours for illustrating a meshed object, few algorithms organize these contours into region-bounding closed loops. Tracing closed-loop boundaries on a mesh can be problematic due to switchbacks caused by subtle surface variation, and the organization of these regions into a planar map can lead to many ...
arxiv   +1 more source