Results 31 to 40 of about 712,500 (261)

In vivo volumetric imaging of human retinal circulation with phase-variance optical coherence tomography [PDF]

open access: yes, 2011
We present in vivo volumetric images of human retinal micro-circulation using Fourier-domain optical coherence tomography (Fd-OCT) with the phase-variance based motion contrast method.
An   +30 more
core   +2 more sources

Long-term visual and microperimetry outcomes following autologous retinal pigment epithelium choroid graft for neovascular age-related macular degeneration [PDF]

open access: yes, 2009
To describe the 2- to 4-year visual and microperimetry outcomes of autologous retinal pigment epithelium (RPE)-choroid graft in patients with neovascular age-related macular degeneration (AMD).In this retrospective cohort study, 12 patients with ...
Aylward, GW   +7 more
core   +1 more source

Retinal remodeling in human retinitis pigmentosa

open access: yesExperimental Eye Research, 2016
Retinitis Pigmentosa (RP) in the human is a progressive, currently irreversible neural degenerative disease usually caused by gene defects that disrupt the function or architecture of the photoreceptors. While RP can initially be a disease of photoreceptors, there is increasing evidence that the inner retina becomes progressively disorganized as the ...
Jones, B.W.   +5 more
openaire   +3 more sources

Association of Retinal Vascular Caliber and Age-Related Macular Degeneration in Patients With the Acquired Immunodeficiency Syndrome. [PDF]

open access: yes, 2018
PurposeTo evaluate the relationship between retinal vascular caliber and AMD in patients with AIDS.MethodsParticipants enrolled in the Longitudinal Study of the Ocular Complications of AIDS had retinal photographs taken at enrollment.
Danis, Ronald P   +4 more
core   +1 more source

ICL Postimplantation Decentration and Tilt in Myopic Patients with Primary Iridociliary Cysts

open access: yesJournal of Ophthalmology, 2023
Purpose. To observe the decentration and tilt of implantable collamer lens (ICL) as well as possible visual effects postimplantation in primary iridociliary cysts. Methods. The present investigation was a retrospective cohort study.
Ying Wang   +6 more
doaj   +1 more source

A detailed clinical and molecular survey of subjects with nonsyndromic USH2A retinopathy reveals an allelic hierarchy of disease-causing variants. [PDF]

open access: yes, 2015
Defects in USH2A cause both isolated retinal disease and Usher syndrome (ie, retinal disease and deafness). To gain insights into isolated/nonsyndromic USH2A retinopathy, we screened USH2A in 186 probands with recessive retinal disease and no hearing ...
A Avila-Fernandez   +57 more
core   +2 more sources

A Systematic Review and Meta-Analysis of Retinal Microvascular Features in Alzheimer's Disease

open access: yesFrontiers in Aging Neuroscience, 2021
Objective: The aim of this meta-analysis was to investigate retinal microvascular features in patients with Alzheimer's disease (AD) using optical coherence tomography angiography (OCTA).Methods: PubMed, Cochrane Library, Embase, and Web of Science ...
Qifang Jin   +5 more
doaj   +1 more source

Fractal Dimension and Retinal Pathology: A Meta-analysis [PDF]

open access: yesarXiv, 2021
Due to the fractal nature of retinal blood vessels, the retinal fractal dimension is a natural parameter for researchers to explore and has garnered interest as a potential diagnostic tool. This review aims to summarize the current scientific evidence regarding the relationship between fractal dimension and retinal pathology and thus assess the ...
arxiv  

Occlusion of retinal capillaries caused by glial cell proliferation in chronic ocular inflammation [PDF]

open access: yes, 2015
The inner blood-retinal barrier is a gliovascular unit in which glial cells surround capillary endothelial cells and regulate retinal capillaries by paracrine interactions.
Artico, Marco   +8 more
core   +2 more sources

Severe hypertension and pulmonary edema associated with systemic absorption of topical phenylephrine in a child during retinal surgery

open access: yesSaudi Journal of Anaesthesia, 2012
Topical phenylephrine solutions are widely used in eye procedures to promote pupil dilation without cycloplegia. We report a case of intraoperative severe hypertension and acute pulmonary edema occurring in a child during retinal surgery after possible ...
Ashraf A Abdelhalim   +3 more
doaj   +1 more source

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