Results 11 to 20 of about 4,325 (224)

Choroidal vascularity index in health and systemic diseases: a systematic review [PDF]

International Journal of Retina and Vitreous
Background The choroid, a highly vascular structure within the eye, is significantly influenced by various systemic conditions. The advent of enhanced depth optical coherence tomography has improved our ability to evaluate choroidal pathophysiology.
Mehrdad Motamed Shariati, Sahel Khazaei, Mariye Yaghoobi   +2 more
doaj   +2 more sources

Quantitative Assessment of Three-Dimensional Choroidal Vascularity and Choriocapillaris Flow Signal Voids in Myopic Patients Using SS-OCTA

Diagnostics, 2021
Purpose: To compare the choroidal vascularity of large- and middle-sized choroidal vessels and choriocapillaris (CC) perfusion in patients with different degrees of myopia using swept-source optical coherence tomography angiography (SS-OCTA).
Amin Xu, Gongpeng Sun, Chaoye Duan, Zhen Chen, Changzheng Chen   +4 more
doaj   +1 more source

Observation of Peripapillary Choroidal Vascularity in Natural Disease Course and After Gene Therapy for Leber's Hereditary Optic Neuropathy

Frontiers in Medicine, 2021
Purpose: To compare peripapillary choroidal vascularity among Leber's Hereditary Optic Neuropathy (LHON) patients at different stages of natural course and healthy controls using optical coherence tomography (OCT), and to evaluate peripapillary choroidal
Jingwen Jiang, Gongpeng Sun, Qingmei Miao, Bin Li, Bin Li, Dan Wang, Jiajia Yuan, Changzheng Chen   +7 more
doaj   +1 more source

Effects of posterior staphyloma on choroidal structure in myopic adults: a retrospective study

BMC Ophthalmology, 2023
Background Studies on the choroid of myopic eyes with posterior staphyloma have shown that choroidal thickness decreased. This retrospective study further analysed the effects of posterior scleral staphyloma on choroidal blood vessels and matrix ...
Zhuo-hua Zhou, Pian-pian Xiong, Jiao Sun, Yan-ling Wang, Jia-lin Wang   +4 more
doaj   +1 more source

Multimodal Imaging of Choroidal Structural in Torpedo Maculopathy

Frontiers in Medicine, 2023
ObjectiveTo report a case of torpedo maculopathy with multimodal fundus imaging methods, and apply the choroid vascularity index to quantitatively describe the choroidal structural changes in torpedo maculopathy.Case presentationAn asymptomatic 41-year ...
Hao Yuan, Hao Yuan, Hongliang Dou, Hongliang Dou, Xuemin Li, Xuemin Li   +5 more
doaj   +1 more source

Choroidal vascular changes in retinitis pigmentosa patients detected by optical coherence tomography angiography

BMC Ophthalmology, 2020
Background To evaluate choroidal vascular changes, including choriocapillaris (CC) and middle/large choroidal vessels, in retinitis pigmentosa (RP) patients using wide-angle optical coherence tomography angiography (OCTA) and to determine whether changes
Chang Shen, Yang Li, Qian Wang, Yu-Ning Chen, Wei Li, Wen-Bin Wei   +5 more
doaj   +1 more source

Structural abnormalities of choroid vasculature in first-episode psychosis

European Psychiatry, 2023
Introduction The eye is considered as a part of the central nervous system and a window of the brain. The eye and the brain, also their microvascular system, share many common features in terms of anatomy and pathophysiology.
C. Demirlek, F. Atas, B. Yalincetin, H. B. Baykara, B. B. Akdede, M. Kaya, E. Bora   +6 more
doaj   +1 more source

Short-term effect of orthokeratology lens wear on choroidal blood flow in children with low and moderate myopia

Scientific Reports, 2022
We investigated changes in choroidal vascularity and choriocapillaris blood perfusion during orthokeratology (Ortho-K) lens wear. Sixty-two children with low to moderate myopia were enrolled.
Qing Zhu, Qi Zhao
doaj   +1 more source

Vascular Response to Sildenafil Citrate in Aging and Age-Related Macular Degeneration. [PDF]

, 2019
Age-related macular degeneration (AMD) - the leading cause of vision loss in the elderly - share many risks factors as atherosclerosis, which exhibits loss of vascular compliance resulting from aging and oxidative stress.
Agrawal, Rupesh, Cheung, Chui Ming Gemmy, Cunefare, David, Farsiu, Sina, Khandelwal, Neha, Migacz, Justin, Tran, Steven, Vuong, Vivian S, Yiu, Glenn   +8 more
core   +2 more sources

Choroidal vascular ischaemia [PDF]

Eye, 1991
The term 'choroidal vascular ischaemia' refers to all the choroido-retinal changes which follow an acute or chronic circulatory disorder in the arterial capillary or venous network of the choroid. However, different clinical syndromes can be observed according to the type of vessel which is occluded, the origin and rate of development of the process ...
openaire   +2 more sources