Results 51 to 60 of about 4,437 (235)

Detailed Retinal Imaging In Carriers Of Ocular Albinism [PDF]

open access: yes, 2017
BACKGROUND: Albinism refers to a group of disorders primarily characterized by hypopigmentation. Affected individuals usually manifest both ocular and cutaneous features of the disease, but occasionally hair and skin pigmentation may appear normal. This
Ali, M   +12 more
core   +2 more sources

Ultrasonographic Assessment of Intrinsic Vascularity in Choroidal Nevus, Suspicious Choroidal Nevus, and Choroidal Melanoma

open access: yesOphthalmology Science
Purpose: To determine if intrinsic vascularity can be observed in B-scan ultrasound examinations of choroidal nevi (CN) and compare the intensity of the vascularity among CN, suspicious choroidal nevi (SN), and choroidal melanomas (CMs).
Buse Guneri Beser, MD   +3 more
doaj   +1 more source

Choroidal Assessment in Patients with Type 2 Diabetes Mellitus and Non-Proliferative Diabetic Retinopathy by Swept-Source Ocular Coherence Tomography and Image Binarization

open access: yesMedicina, 2022
Background and Objectives: The aim of this study was to evaluate choroidal structure and vascularity indices in patients with non-proliferative diabetic retinopathy (NPDR). Materials and Methods: Sixty-three eyes from sixty-three patients were evaluated:
Otilia Obadă   +5 more
doaj   +1 more source

Differences in Ocular Blood Flow Between People of African and European Descent With Healthy Eyes [PDF]

open access: yes, 2016
Purpose: To investigate differences in ocular blood flow between people of African descent (AD) and European descent (ED) with healthy eyes. Materials and Methods: Retrobulbar and retinal capillary blood flow was assessed in 1 eye of 58 participants ...
Eikenberry, Jennifer   +8 more
core   +1 more source

Choroidal structural changes in airline pilots and cabin crew [PDF]

open access: yes, 2022
Purpose: To analyze the differences in terms of choroidal vascularity index (CVI) and choroidal thickness (CT) between the airline pilots–cabin crew and the normal population. Methods: In this prospective study, 50 airline pilots–cabin crew (study group)
Ersöz, Mehmet Giray, Işık, Burcu
core   +1 more source

Aptamer‐Based Delivery Systems for VEGF and NGF Modulation in Ocular Therapies

open access: yesAdvanced Healthcare Materials, EarlyView.
Aptamer‐based delivery systems targeting NGF and VEGF hold significant potential for precise and sustained treatment of complex diseases affecting both the anterior and posterior segments of the eye. This review critically summarizes current strategies for NGF and VEGF delivery as well as VEGF sequestration, providing a clinical perspective on how ...
Nadine Best   +5 more
wiley   +1 more source

Fibroblast growth factor/fibroblast growth factor receptor system in angiogenesis. [PDF]

open access: yes, 2005
Fibroblast growth factors (FGFs) are a family of heparin-binding growth factors. FGFs exert their pro-angiogenic activity by interacting with various endothelial cell surface receptors, including tyrosine kinase receptors, heparan-sulfate proteoglycans ...
Aigner   +253 more
core   +1 more source

Choroidal vascularity index and choroidal thickness: potential biomarkers in retinitis pigmentosa

open access: yesEye, 2022
AbstractRetinitis pigmentosa (RP) is the commonest inherited retinal dystrophy. It is characterized by progressive photoreceptor degeneration and cell death and ongoing neuronal and vascular impairment. In recent years, pathophysiological alterations of the choroid have begun to be appreciated in RP.
Solmaz Abdolrahimzadeh   +4 more
openaire   +3 more sources

Metamaterial Antennas Enhance MRI of the Eye and Occipital Brain

open access: yesAdvanced Materials, EarlyView.
A radiofrequency antenna platform comprising planar and bend configurations is developed, incorporating structurally integrated epsilon‐negative metamaterial unit cells to enhance MRI. These antennas enable high‐resolution in vivo human MRI of the eye, orbit, and occipital brain. Comprehensive validation, including simulations, phantom experiments, SAR,
Nandita Saha   +14 more
wiley   +1 more source

A pilot study of morphometric analysis of choroidal vasculature in vivo, using en face optical coherence tomography. [PDF]

open access: yesPLoS ONE, 2012
To study the ability of volumetric spectral domain optical coherence tomography (SD-OCT) to perform quantitative measurement of the choroidal vasculature in vivo.Choroidal vascular density and vessel size were quantified using en face choroidal scans ...
Mahsa Sohrab   +2 more
doaj   +1 more source

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