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The aim of this study was to investigate the role of optic nerve diffusion status on cranio-orbital magnetic resonance imaging (MRI) in predicting visual prognosis in cases of methanol intoxication. Diffusion-weighted imaging (DWI) from 16 eyes of eight patients who were admitted to our clinic due to methanol intoxication was analysed retrospectively. The relationship between clinical and laboratory findings, treatment regimen, visual prognosis, and imaging findings was investigated. Diffusion restriction (DR) of the optic nerve on DWI was observed in seven (43%) eyes. Regardless of the clinical and laboratory characteristics and treatment regimen, visual acuity (VA) improved in eyes in which restricted diffusion regressed over the follow-up period. DWI of the optic nerve during the acute phase of methanol poisoning may provide prognostically important data. Improvement of DR during follow-up may be an indicator of an increase in VA.
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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11095577 | PMC |
http://dx.doi.org/10.1080/01658107.2023.2293865 | DOI Listing |
Invest Ophthalmol Vis Sci
September 2025
Division of Biomedical Physics, Office of Science and Engineering Laboratories, Center for Devices and Radiological Health, U.S. Food and Drug Administration, Silver Spring, Maryland, United States.
Purpose: To assess macular choriocapillaris (CC) metrics in healthy volunteers (HVs) without ocular disease and demonstrate CC variations in patients with inherited retinal dystrophies (IRDs) using adaptive optics optical coherence tomography angiography (AO-OCTA).
Methods: Twenty-one HVs and three IRD patients were imaged. Macular variation in 20 HVs in CC metrics (CC density, CC diameter, CC tortuosity, void diameter, void area, lobule count, lobule area, and RPE-CC distance) were assessed by imaging a 28° strip of overlapping AO-OCTA volumes (3° × 3°) from the optic nerve head to the temporal macula.
Cureus
August 2025
Faculty of Medicine, University of Costa Rica, San Jose, CRI.
This systematic review examines the potential association between semaglutide, a glucagon-like peptide-1 (GLP-1) receptor agonist, and the development of non-arteritic anterior ischemic optic neuropathy (NAION). Nine studies were included, consisting of retrospective cohort analyses, case series, and pharmacovigilance reports. Findings across the literature were inconsistent, with some studies reporting an increased risk while others found no significant association.
View Article and Find Full Text PDFCureus
August 2025
Emergency Medicine, All India Institute of Medical Sciences, New Delhi, New Delhi, IND.
Background Increased intracranial pressure (ICP) can be reliably detected at the bedside using the optic nerve sheath diameter (ONSD). The functional outcome in stroke patients can be predicted with the use of acute-phase ONSD dynamics. Objectives To determine the predictive accuracy of ONSD on days 0, one, and three for the prognosis of ischemic stroke patients presented to emergency medicine as measured by Modified Rankin Scale (mRS) score.
View Article and Find Full Text PDFNat Commun
September 2025
Shanghai Yao Yuan Biotechnology Ltd (Drug Farm), Shanghai, China.
ROSAH (retinal dystrophy, optic nerve edema, splenomegaly, anhidrosis, and headache) syndrome is a rare genetic disease caused by variants in alpha-kinase 1 (ALPK1) resulting in downstream pro-inflammatory signaling mediated by the TIFA/TRAF6/NF-κB pathway. Here, we report the design of an ALPK1 inhibitor, DF-003, with pharmacokinetic properties suitable for daily oral dosing. In biochemical assays, DF-003 potently inhibits human ALPK1 (IC = 1.
View Article and Find Full Text PDFOphthalmic Plast Reconstr Surg
September 2025
Purpose: During endoscopic endonasal access to small intraconal masses deep in the orbital apex, a line of fusion between inferior and medial recti is encountered distal to the termination of the common tendinous ring. The intraoperatively viewed length of this segment has not been quantified. To assist clinical recognition of this structure, our study quantifies its length and proposes the standardized nomenclature term of inferomedial extraocular muscle raphe (IM-EOMR).
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