Age-related macular degeneration is a leading cause of irreversible vision loss in individuals over 55 years of age worldwide. Conventionally, it is divided into two subtypes - dry (non-neovascular) and wet (neovascular) form. Neovascular age-related macular degeneration comprises only 10-15% of all patients but is responsible for more than 80% of blindness related to the disease. It requires early diagnosis and timely treatment. Fluorescein angiography is the current 'gold standard' for diagnosing neovascular forms. However, as an invasive procedure, it may be contraindicated in some circumstances and cause serious adverse effects. Optical coherence tomography-angiography is a relatively new, non-invasive and fast imaging modality gaining popularity in the diagnosis of age-related macular degeneration, especially for the neovascular form of the disease. It enables structural and functional information of blood vessels in the retina and choroid, without the need of an intravenous dye. In this study we present and discuss 3 cases of different subtypes of choroidal neovascularization secondary to neovascular age-related macular degeneration. All of them were examined by fluorescein angiography and optical coherence tomography-angiography. The results were qualitatively analyzed.
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.2478/folmed-2018-0061 | DOI Listing |
Alzheimers Dement
December 2024
Institute of Epidemiology and Preventive Medicine, College of Public Health, National Taiwan University, Taipei, Taiwan.
Background: The early detection of preclinical dementia is crucial, prompting investigations into retinal biomarkers using optical coherence tomography (OCT). Inconsistent and limited longitudinal studies have been done to clarify the association between the retinal nerve fiber layer (RNFL) and ganglion cell-inner plexiform layer (GC-IPL) thickness and cognitive function over time. This study aims to explore the association between retinal biomarkers and cognitive function over time in non-demented older adults.
View Article and Find Full Text PDFAlzheimers Dement
December 2024
Federal Center of Brain and Neurotechnologies, FMBA of Russia, Moscow, Russian Federation.
Background: The priority problem of modern healthcare is irreversible dementia due to the steady increase in morbidity. Among irreversible dementias, Alzheimer's disease takes the first place. Most often, only with sufficiently pronounced cognitive disorders, the doctor can diagnose Alzheimer's disease, although it is obvious that the neurodegenerative process begins even before the clinical manifestations of the disease.
View Article and Find Full Text PDFAlzheimers Dement
December 2024
Department of Ophthalmology, University of Washington, Seattle, WA, USA.
Background: To describe the settings and compare demographic and baseline clinical factors of the inaugural Eye Adult Changes in Thought (ACT) study participants.
Method: Adult Changes in Thought (ACT) is an ongoing cohort study of older adults (≥ 65 years) randomly recruited from Kaiser Permanente Washington who were cognitively normal at enrollment and followed biennially for the onset of Alzheimer's disease since 1994. Cognitive testing included the Cognitive Abilities Screening Instrument scored using Item Response Theory (CASI-IRT) with other measures of cognition.
J Ocul Pharmacol Ther
January 2025
Centre for Neuroscience Research (NeuRon), Faculty of Medicine, Universiti Teknologi MARA, Selangor, Malaysia.
Vitamin E is renowned for its potent antioxidant properties, crucial for shielding cells against oxidative stress and damage. Deficiency in this vitamin can lead to various health issues, including neurodegenerative diseases, due to its pivotal role in preserving cell membrane integrity and combating cellular oxidative damage. While its importance for overall health, including neurodegeneration, is acknowledged, the specific correlation between vitamin E deficiency and distinct ocular neurodegenerative disorders need to be further explored.
View Article and Find Full Text PDFExp Eye Res
January 2025
Department of Ophthalmology, First Affiliated Hospital, Zhejiang University School of Medicine, 310003, China. Electronic address:
Senescent retinal pigment epithelial cells play a key role in neovascular age-related macular degeneration (nAMD); however, the mechanisms underlying the angiogenic ability of these cells remain unclear. Herein, we investigated the effects of the senescent adult retinal pigment epithelial cell line-19 (ARPE-19) on wound healing, cell migration and survival, and tube formation abilities of human umbilical vein endothelial cells (HUVECs). Additionally, we used Brown Norway rats to establish a laser-induced choroidal neovascularization (CNV) model for further nAMD-related studies.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!