Results 51 to 60 of about 9,469 (145)

A Comprehensive Multimodal Study of La0.45Sr0.45TiO3 Structure as Matrix for the Exsolution Process: From the Average to the Local Scale

Small, EarlyView.
We present a multimodal, multiscale study of La0.45Sr0.45TiO3 combining experimental and computational approaches to probe its local structure. The results reveal A‐site ordering along [001] and loss of centrosymmetry driven by electrostatic effects.
Marco Pinna, Jonathan Cavazzani, Marta Mirolo, Gabriel J. Cuello, Nader Barhouma, Andrea Trapletti, Carlo Castellano, Fausto Cargnoni, Mario I. Trioni, Antonella Glisenti, Marco Scavini   +10 more
wiley   +1 more source

Inter‐eye microvascular asymmetry across stages of diabetic retinopathy: An OCT angiography study

Acta Ophthalmologica, EarlyView.
Abstract Purpose To evaluate inter‐eye asymmetry in macular microvascular parameters across different stages of diabetic retinopathy (DR) using OCT angiography, and to explore the associations with clinical factors. Methods This cross sectional study included 442 eyes of 221 patients with diabetes mellitus type 2. Central subfield thickness (CST), area
Stela Vujosevic, Sema Tamer Kaderli, Gabriele Piccoli, Elena Tagliabue, Camilla Alovisi, Vanda Bucceri, Emanuele Torti, Elisa Marenzi, Dogukan Ozen, Livio Luzi, Paolo Nucci   +10 more
wiley   +1 more source

Longitudinal progression of retinal nonperfusion in clinically stable diabetic retinopathy

Acta 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, Sofia Ginelli, Alessandra Cernuschi, Celeste Limoli, Gabriele Piccoli, Elena Tagliabue, Emanuele Torti, Paolo Nucci, Paolo S. Silva   +8 more
wiley   +1 more source

Electric shock induced Purtscher-like retinopathy

Indian Journal of Ophthalmology, 2019
The most common ocular manifestation following electric shock injury is the development of cataract. Retinal manifestations can vary from development of macular holes to retinal detachments.
Anuj Sharma, Y C Venu Gopal Reddy, Adheesh P Shetty, Syed Mohideen Abdul Kader   +3 more
doaj   +1 more source

Optical coherence tomography angiography analysis of microvascular network in retinal vein occlusion: superficial vs. deep capillary plexus

Folia Medica
Introduction and aim: Optical coherence tomography angiography (OCTA) is a diagnostic imaging modality that provides distinct visualization of the vascular networks present in both the superficial and deep capillary plexuses. The present study employed OCTA to examine microvascular changes in the macular plexuses of retinal vein occlusion (RVO ...
Sinan Aptikadir, Nelly Sivkova
openaire   +3 more sources

Optic nerve head blood flow autoregulation during isometric exercise in primary open‐angle glaucoma assessed by laser speckle flowgraphy

Acta Ophthalmologica, EarlyView.
Abstract Purpose To assess optic nerve head blood flow (ONHBF) autoregulation in patients with early‐ to moderate‐stage primary open‐angle glaucoma (POAG) and age‐ and sex‐matched healthy controls using laser speckle flowgraphy (LSFG) and isometric handgrip exercise.
Theresa Lindner, Viktoria Pai, Patrick Janku, Nikolaus Hommer, Anton Hommer, Liudmyla Petric, Ulrich Graf, Leopold Schmetterer, Gerhard Garhöfer, Doreen Schmidl   +9 more
wiley   +1 more source

Conjunctival optical coherence tomography angiography imaging in sickle cell maculopathy

American Journal of Ophthalmology Case Reports, 2022
Purpose: To compare conjunctival and macular manifestations of sickle cell anemia using optical coherence tomography angiography (OCTA). Observations: OCTA imaging of the macula in two patients with HbSS and HbSC revealed areas of decreased vascular ...
Glory E. Mgboji, Dennis Cain, Adrienne W. Scott   +2 more
doaj   +1 more source

Retinal capillary density in relation to diabetes duration and levels of glycaemia in young patients with type 1 diabetes

Acta Ophthalmologica, EarlyView.
Abstract Purpose To examine retinal capillary plexus characteristics and their correlation with diabetes duration and levels of glycaemia in young type 1 diabetes (T1D) patients. Methods Cross‐sectional analysis of baseline data from an observational, prospective cohort study of 69 patients with T1D aged 6–32 (mean 16) years in T1D duration subgroups ≤
Marie Elise Wistrup Torm, Jesper Johannesen, Jakob Lønborg Christensen, Vedrana Andersen Dahl, Javad Nouri Hajari, Oliver Niels Klefter, Michael Larsen   +6 more
wiley   +1 more source

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

Clinical &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, Mila Yue Zhang, Hemn Baghban Jaldian, Madeleine S. Torcasso, Gavrielle R. Untracht, Jocelyn J. Drinkwater, Mei Zhao, David D. Sampson, Andrew Lam, Fred K. Chen   +9 more
wiley   +1 more source

Differentiating features of OCT angiography in diabetic macular edema

Scientific Reports, 2021
The purpose of current study was to evaluate different optical coherence tomography angiography (OCTA) metrics in eyes with diabetic retinopathy with and without diabetic macular edema (DME).
Reza Mirshahi, Hamid Riazi-Esfahani, Elias Khalili Pour, Kaveh Fadakar, Parsa Yarmohamadi, Sayyed Amirpooya Alemzadeh, Samira Chaibakhsh, Khalil Ghasemi Falavarjani   +7 more
doaj   +1 more source