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
Multimodal Transfer Learning-based Approaches for Retinal Vascular Segmentation [PDF]
Proceedings of the 24th European Conference on Artificial
Intelligence (ECAI 2020), 2020 In ophthalmology, the study of the retinal microcirculation is a key issue in the analysis of many ocular and systemic diseases, like hypertension or diabetes. This motivates the research on improving the retinal vasculature segmentation. Nowadays, Fully Convolutional Neural Networks (FCNs) usually represent the most successful approach to image ...
arxiv +1 more source
Identifying factors associated with fast visual field progression in patients with ocular hypertension based on unsupervised machine learning [PDF]
arXiv, 2023 Purpose: To identify ocular hypertension (OHT) subtypes with different trends of visual field (VF) progression based on unsupervised machine learning and to discover factors associated with fast VF progression. Participants: A total of 3133 eyes of 1568 ocular hypertension treatment study (OHTS) participants with at least five follow-up VF tests were ...
arxiv
Alzheimer Disease is Associated with Isotropic Ocular Enlargement [PDF]
arXiv, 2023 Recent studies have documented ocular changes in dementia patients, especially Alzheimer Disease (AD). In this study, we explored the change of eye size and eye shape in dementia, including AD patients. The eyeball volume and diameters were estimated via T1-weighted brain magnetic resonance (MR) images in the OASIS-3 database which included 83 AD, 247 ...
arxiv
Explainable Artificial Intelligence in Retinal Imaging for the detection of Systemic Diseases [PDF]
arXiv, 2022 Explainable Artificial Intelligence (AI) in the form of an interpretable and semiautomatic approach to stage grading ocular pathologies such as Diabetic retinopathy, Hypertensive retinopathy, and other retinopathies on the backdrop of major systemic diseases.
arxiv
A radiomics approach to analyze cardiac alterations in hypertension [PDF]
, 2020 Hypertension is a medical condition that is well-established as a risk factor for many major diseases. For example, it can cause alterations in the cardiac structure and function over time that can lead to heart related morbidity and mortality. However, at the subclinical stage, these changes are subtle and cannot be easily captured using conventional ...
arxiv +1 more source
Evaluate underdiagnosis and overdiagnosis bias of deep learning model on primary open-angle glaucoma diagnosis in under-served patient populations [PDF]
AMIA 2023 Informatics Summit, 2023 In the United States, primary open-angle glaucoma (POAG) is the leading cause of blindness, especially among African American and Hispanic individuals. Deep learning has been widely used to detect POAG using fundus images as its performance is comparable to or even surpasses diagnosis by clinicians.
arxiv
Gaze-Contingent Ocular Parallax Rendering for Virtual Reality [PDF]
ACM Trans. Graph. 39, 2, Article 10 (April 2020), 12 pages, 2019 Immersive computer graphics systems strive to generate perceptually realistic user experiences. Current-generation virtual reality (VR) displays are successful in accurately rendering many perceptually important effects, including perspective, disparity, motion parallax, and other depth cues.
arxiv +1 more source
SNPs Filtered by Allele Frequency Improve the Prediction of Hypertension Subtypes [PDF]
arXiv, 2021 Hypertension is the leading global cause of cardiovascular disease and premature death. Distinct hypertension subtypes may vary in their prognoses and require different treatments. An individual's risk for hypertension is determined by genetic and environmental factors as well as their interactions.
arxiv
Uncertainty propagation and sensitivity analysis: results from the Ocular Mathematical Virtual Simulator [PDF]
, 2021 We propose an uncertainty propagation study and a sensitivity analysis with the Ocular Mathematical Virtual Simulator, a computational and mathematical model that predicts the hemodynamics and biomechanics within the human eye. In this contribution, we focus on the effect of intraocular pressure, retrolaminar tissue pressure and systemic blood pressure
arxiv +1 more source