Results 131 to 140 of about 3,656,889 (205)

Effect of chronic high‐altitude hypoxia on retinal vascular phenotype, choroidal and retinal vasoreactivity in Peruvian highlanders

Experimental Physiology, Volume 111, Issue 10, Page 4814-4826, 1 October 2026.
Abstract High‐altitude chronic hypoxia can induce excessive erythrocytosis (EE, defined as a haemoglobin concentration of ≥21 g/dL in men), leading to hyperviscosity and promoting endothelial dysfunction. We aimed to assess whether EE affects the retinal vascular phenotype and the ophthalmological vascular response to CO2.
Aymeric Paillisser, Julien Vincent Brugniaux, Florence Berquet, Jeremy De Abreu, Stephen Hogg, Emanuele Trucco, Martial Geiser, Tom Macgillivray, Aurélien Pichon, Paul Robach, Benoit Champigneulle, Samuel Verges, Christophe Chiquet   +12 more
wiley   +1 more source

Choroidal manifestations of non-ocular sarcoidosis: an enhanced depth imaging OCT study

BMC Ophthalmology
Background Although choroidal thickening was reported as a sign of active inflammation in ocular sarcoidosis, there has been no research on the choroidal changes in non-ocular sarcoidosis (defined as systemic sarcoidosis without overt clinical signs of ...
Ye Eun Han, Jaehyuck Jo, Ho Cheol Kim, Junyeop Lee   +3 more
doaj   +1 more source

Biometric parameters and choroidal microstructure in Chinese children with unilateral anisometropia

Frontiers in Medicine
PurposeThis study aimed to investigate the biological parameters and choroidal microstructure of the eyes of children with unilateral anisometropia and to analyze the factors influencing refractive development in these patients.MethodsThis observational ...
Jing Wen, Jing Wen, Yiwen Cao, Yiwen Cao, Jingjing Zhao, Jingjing Zhao, Dehai Zhu, Dehai Zhu   +7 more
doaj   +1 more source

Choroidal Characteristics in 3- to 16-Year-Old Chinese Patients, Measured by Swept-Source OCT/OCT Angiography

Ophthalmology Science
Purpose: The purpose of this study was to investigate choroidal structural and vascular characteristics in children aged 3 to 16 years using OCT angiography (OCTA) and to explore their associations with refractive status, axial length (AL), and best ...
Jiali Wu, PhD, Ning Wang, PhD
doaj   +1 more source

Letter to choroidal changes and the evaluation of the choroidal vascular index in migraine subgroups

Photodiagnosis and Photodynamic Therapy, 2023
Andrea Valerio Marino, Martina De Luca, Marco Gioia   +2 more
openaire   +2 more sources

Composite box plots representing the baseline and follow up measurements for total choroidal area (TCA) (A), luminal area (LA) (B), stromal area (SA) (C) and choroidal vascularity index (CVI) (D) for both control and uveitic (study) eyes.

, 2016
Composite box plots representing the baseline and follow up measurements for total choroidal area (TCA) (A), luminal area (LA) (B), stromal area (SA) (C) and choroidal vascularity index (CVI) (D) for both control and uveitic (study) eyes.
Rupesh Agrawal (845029), Dawn A. Sim (845033), Mohammed Salman (845030), Michael Karampelas (845032), Kara-Anne Tan (845031), Pearse A. Keane (520586), Carlos Pavesio (845034)   +6 more
core   +1 more source

Grid-based analysis of three-dimensional choroidal Sattler’s and Haller’s layer vascularity volume index and its relation to age and axial length in adults by ultra-widefield swept-source optical coherence tomography angiography

BMC Ophthalmology
Background This study was to evaluate the features of choroidal Sattler’s and Haller’s layer (CSHL) vessels in adults and explore its relationship with factors such as age, axial length (AL) and body mass index (BMI) by using ultra-widefield swept-source
Yuyao Qu, Jixian Ma, Rong Di, Yue Bian, Yuchen Li, Hanze Zhang, Yazhou Qin, Qiuping Liu, Jianqin Lei, Jingming Li   +9 more
doaj   +1 more source

Correction: Choroidal vascularity index as an indicator of vascular status of choroid, in eyes with nanophthalmos

Eye, 2020
Funda Ebru Aksoy, Cigdem Altan, Cem Kesim, Ali Demircan, Ugur Tunç, Gokhan Demir, Muhittin Taskapılı   +6 more
openaire   +2 more sources

Assessment of choroidal vessels in healthy eyes using 3-dimensional vascular maps and a semi-automated deep learning approach

Scientific Reports
To assess the choroidal vessels in healthy eyes using a novel three-dimensional (3D) deep learning approach. In this cross-sectional retrospective study, swept-source OCT 6 × 6 mm scans on Plex Elite 9000 device were obtained.
Nicola Valsecchi, Elham Sadeghi, Elli Davis, Mohammed Nasar Ibrahim, Nasiq Hasan, Sandeep Chandra Bollepalli, Sumit Randhir Singh, Luigi Fontana, Jose Alain Sahel, Kiran Kumar Vupparaboina, Jay Chhablani   +10 more
doaj   +1 more source

Comparison of retinal thickness and choroidal vascularity index after vitrectomy in idiopathic versus diabetic epiretinal membrane. [PDF]

BMC Ophthalmol
Birgül R, Çetin M.
europepmc   +1 more source