Results 171 to 180 of about 3,349 (213)

Exploring choroidal angioarchitecture in health and disease using choroidal vascularity index

Progress in Retinal and Eye Research, 2020
The choroid is one of the most vascularized structures of the human body and plays an irreplaceable role in nourishing photoreceptors. As such, choroidal dysfunction is implicated in a multitude of ocular diseases.
Rupesh Agrawal, Jianbin Ding, Parveen Sen   +2 more
exaly   +2 more sources

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Choroidal vascularity index and choroidal thickness assessment in vitiligo

Clinical and Experimental Optometry, 2023
Vitiligo is a skin disease characterised by depigmentation and loss of melanocytes. Melanocyte loss may not be limited to the skin in vitiligo, and various abnormalities may occur in the choroid, which is dense in melanocytes.To evaluate structural changes in the choroid by measuring choroidal thickness and vascularity index using optical coherence ...
Kocabas, Dilara Ozkoyuncu, Oren, Burak, Kiziltoprak, Hasan, Duzayak, Serkan   +3 more
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Choroidal structural changes and choroidal vascularity index in patients with systemic hypertension

European Journal of Ophthalmology, 2022
Purpose: To assess the impact of systemic hypertension on the choroidal structure and choroidal vascularity index (CVI). Methods: This prospective cross-sectional study comprised 50 eyes of 50 treatment-naive hypertensive patients and 50 eyes of 50 ...
Nazife Aşıkgarip, Emine Temel, Kemal Örnek   +2 more
exaly   +2 more sources

Choroidal Vascularity in Non-arteritic Anterior Ischaemic Optic Neuropathy

Neuro-Ophthalmology, 2019
This study evaluates the peripapillary choroidal vascularity in eyes with non-arteritic anterior ischaemic optic neuropathy (NAION) and compares it with the vascularity of healthy fellow eyes and age-matched subjects.
Abhilash Guduru, Mohammed Abdul Rasheed, Abhilash Goud   +2 more
exaly   +2 more sources

Polypoidal Choroidal Vasculopathy with Choroidal Vascular Hyperpermeability

American Journal of Ophthalmology, 2006
To describe the incidence and clinical characteristics of polypoidal choroidal vasculopathy (PCV) associated with choroidal vascular hyperpermeability.Retrospective observational case series.We reviewed the medical records of 122 consecutive eyes with PCV and 106 consecutive eyes with exudative age-related macular degeneration (AMD).
Manabu, Sasahara, Akitaka, Tsujikawa, Kunihiro, Musashi, Norimoto, Gotoh, Atsushi, Otani, Michiko, Mandai, Nagahisa, Yoshimura   +6 more
openaire   +2 more sources

Physiology of the choroidal vascular bed

International Ophthalmology, 1983
The choroidal vascular bed has many interesting features such as relatively wide but flat capillaries, fenestrated capillary walls and an enormous blood flow. The high flow rate results in a high oxygen tension in the tissue and is also of importance in the temperature control of the eye.
A, Bill, G, Sperber, K, Ujiie
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Choroidal Leiomyoma of Vascular Origin

American Journal of Ophthalmology, 1976
A 57-year-old man had a clinically suspected malignant melanoma in his left eye. On microscopic study, the enucleated eye harbored an unusual choroidal tumor that had extended extraocularly. This tumor had been variously interpreted microscopically as an angiosarcoma, an atpical angioma, a glioma, or a neurilemoma.
Jakobiec, Frederick A., Witschel, Heinrich, Zimmerman, Lorenz E.   +2 more
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Choroidal Vascular Patterns in Hypertension

Archives of Ophthalmology, 1964
In a previous paper 1 we presented observations on senile vascular patterns of the choroid and their relationship to drusen. The choroidal vessels were prepared in a manner which made possible the simultaneous study, on the flat, of the vessel patterns, of the cells of the vessel wall and of Bruch's membrane.
E. FRIEDMAN, T. R. SMITH, T. KUWABARA, C. K. BEYER, S. Mimura   +4 more
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OCT angiography and evaluation of the choroid and choroidal vascular disorders

Progress in Retinal and Eye Research, 2018
The recent introduction of optical coherence tomography angiography (OCTA) has remarkably expanded our knowledge of the choroid through in vivo investigation of the anatomical and pathological features of this important vascular layer. New insights elucidating the morphological features of the choroid, in both physiological and pathological conditions,
Enrico Borrelli, David Sarraf, K. Bailey Freund, Srinivas R. Sadda   +3 more
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Choroidal vascular changes after transpupillary thermotherapy for choroidal melanoma

Ophthalmology, 2003
To evaluate choroidal vascular alterations after transpupillary thermotherapy used as the sole treatment for choroidal melanoma.Prospective noncomparative interventional case series.Forty-five eyes of 45 patients affected by malignant choroidal melanoma treated with transpupillary thermotherapy alone with more than 1 year of follow-up.Transpupillary ...
MIDENA, EDOARDO, PILOTTO E, DE BELVIS V, ZALTRON S, DORO, DANIELE, SEGATO T, PIERMAROCCHI, STEFANO   +6 more
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