Results 121 to 130 of about 36,566 (258)

Longitudinal progression of retinal nonperfusion in clinically stable diabetic retinopathy

open access: yesActa Ophthalmologica, EarlyView.
Abstract Purpose To longitudinally assess and quantify changes in retinal nonperfusion (NP) in clinically stable diabetic retinopathy (DR) using ultra‐widefield fluorescein angiography (UWF‐FA) and optical coherence tomography angiography (OCTA). Methods Fifty‐one eyes from thirty‐three patients were followed for a mean of 15.9 ± 11.4 months.
Stela Vujosevic   +8 more
wiley   +1 more source

An X‑Shaped Chiral Non‑Fullerene n‐Type Semiconductor: Application in Perovskite Solar Cells and Chirality‑Induced Spin Selectivity

open access: yesAngewandte Chemie, Volume 138, Issue 43, 19 October 2026.
A highly electron‑accepting derivative of cyclobisbiphenylenecarbonyl (CBBC‐TIC) is reported. CBBC‐TIC functions as an electron‐transport layer for perovskite solar cells, achieving a power conversion efficiency of 20.6%. Furthermore, the enantiomers of CBBC‐TIC exhibited spin‐selective electron transport with high enantiospecific magnetic conductance ...
Yuki Sakamoto   +15 more
wiley   +2 more sources

Concurrent macular neovascularization in shallow irregular retinal pigment epithelium elevation phenotypes in age‐related macular degeneration and chronic central serous chorioretinopathy: A systematic review and meta‐analysis

open access: yesActa Ophthalmologica, EarlyView.
Abstract This systematic review and meta‐analysis synthesized the reported frequency of concurrent macular neovascularization (MNV) among selected eyes with author‐defined shallow irregular retinal pigment epithelium (RPE) elevations in age‐related macular degeneration (AMD) and chronic central serous chorioretinopathy (CSC).
Mehmet Cem Sabaner   +7 more
wiley   +1 more source

Variability of Foveal Avascular Zone Measurements Among Filipino Eyes Using Optical Coherence Tomography Angiography

open access: yesPhilippine Journal of Ophthalmology
Objective: To determine the foveal avascular zone (FAZ) thickness and other FAZ measurements in eyes of healthy Filipino adults aged 20-49 years. Methods: This single-center, cross-sectional, observational study evaluated 186 subjects (372 eyes) of ...
Roberto Luis F. Franco, MD, DPBO   +1 more
doaj  

Comparison of retinal microvasculature in anisometropic amblyopic and healthy eyes using optical coherence tomography angiography

open access: yesIndian Journal of Ophthalmology
Purpose: To compare the optical coherence tomography angiography (OCTA) findings of retinal microvasculature in anisometropic amblyopic eyes with fellow eyes.
Tisha Thomas Menacherry   +4 more
doaj   +1 more source

Correcting Axial Length‐Related Magnification Errors in Optical Coherence Tomography Angiography Improves Machine Learning Classification Performance in High Myopia

open access: yesClinical &Experimental Ophthalmology, EarlyView.
ABSTRACT Background To determine whether axial length‐related magnification correction in optical coherence tomography angiography (OCTA) improves machine learning classification of high myopia and resolves inconsistencies in the values and discriminatory power of OCTA microvascular metrics.
Danuta M. Sampson   +9 more
wiley   +1 more source

Synthesis of octa-acids and -amines of phthalocyanines and tetraazaporphyrins. [PDF]

open access: yes, 2004
Several synthetic pathways towards octa-alkyl acid phthalocyanines and octa-alkyl amine phthalocyanines and their precursors have been developed. The preparation of three octa-acids with different aliphatic spacer chains has been completed successfully ...
Li, Hui Sheng
core   +1 more source

Peripapillary microperimetry and optical coherence tomography angiography in patients with optic disc edema

open access: yesJournal of the Egyptian Ophthalmological Society
Purpose To compare the utility of peripapillary microperimetry and optical coherence tomography angiography (OCTA) in the differential diagnosis of patients with optic disc edema, including papilledema, optic neuritis, and anterior ischemic optic ...
Ghada A. Nassar   +3 more
doaj   +1 more source

Research Review: A scoping review exploring the needs, barriers, and facilitators to the collection of biological data in adolescence for mental health research

open access: yesJournal of Child Psychology and Psychiatry, EarlyView.
Background There is increasing recognition of the challenge of representativeness in data, including economic, social, and ethnic diversity, in biological mental health research. This is a particular challenge in adolescence, where brain and body development are impacted by the environment.
Courtney Worrell   +29 more
wiley   +1 more source

Mixing and Compounding of Graphene/High Density Polyethylene Nanocomposites Using Twin‐Screw and Octa‐Screw Extrusions: A Comparative Study

open access: yesJournal of Applied Polymer Science, Volume 143, Issue 42, November 10, 2026.
Advanced octa‐screw extrusion offers a breakthrough in compounding high‐viscosity polymer nanocomposites. By comparing twin‐ and octa‐screw extruders, this study reveals that the octa‐screw's unique intermeshing geometry achieves superior graphene exfoliation while preventing thermal degradation.
Cheng‐Ying Liu   +2 more
wiley   +1 more source

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