Results 11 to 20 of about 2,732,558 (236)

A study of changes in Mean Ocular Perfusion Pressure and Intra-Ocular Pressure among patients undergoing hemodialysis [PDF]

open access: yesPerspectives In Medical Research, 2022
Background:During hemodialysis there is decrease in both systolic blood pressure (SBP) and diastolic blood pressure (DBP) and hence Mean Arterial Pressure (MAP) due to decrease in body fluid volume.
doaj   +3 more sources

Effect of mean ocular perfusion pressure on primary open angle glaucoma

open access: yesBangabandhu Sheikh Mujib Medical University Journal, 2018
Primary open angle glaucoma is the most common form of glaucoma and it remains asymptomatic until the late stage of the disease. The purpose of this study is to compare the mean ocular perfusion pressure with the primary open angle glaucoma.
Pallab Kumar Sen   +2 more
doaj   +2 more sources

A review of ocular perfusion pressure and retinal thickness: A case for the role of systemic hypotension in glaucoma

open access: yesAfrican Vision and Eye Health, 2021
Background: Ocular perfusion pressure (OPP) is defined as blood pressure (BP) minus intraocular pressure (IOP). Low OPP may result in decreased ocular blood flow (OBF) and oxygen to the optic nerve head (ONH) and retina.
Naazia Vawda, Alvin J. Munsamy
doaj   +1 more source

Physiological and pathological human ocular perfusion characteristics [PDF]

open access: yes
There were three principle aims to this thesis. Firstly, the acquisition protocols of clinical blood flow apparatus were investigated in order to optimise them for both cross-sectional and longitudinal application.
Embleton, Sally J.
core   +8 more sources

Ocular perfusion pressure: distribution and its relationship with glaucoma [PDF]

open access: yesAl Ameen Journal of Medical Sciences, 2021
Background and Objectives: Glaucoma is the second largest causative factor for blindness globally. Despite this, its pathogenesis remains obscure owing to its multi-factorial nature.
Rekha Mudhol   +3 more
doaj  

Transient ocular surface non-perfusion during cataract phacoemulsification surgery

open access: yesBMC Ophthalmology, 2020
Background Complete non-perfusion of the anterior segment vasculature during cataract phacoemulsification surgery is rarely reported. Case presentation We present two cases of transient ocular surface non-perfusion (TOSN) during cataract ...
Yijun Hu, Wei Qi, Baoyi Liu, Honghua Yu
doaj   +1 more source

Systemic hypertension is not protective against chronic intraocular pressure elevation in a rodent model

open access: yesScientific Reports, 2018
High intraocular pressure is the most well documented glaucoma risk factor; however many patients develop and/or show progression of glaucoma in its absence.
Anna K. van Koeverden   +4 more
doaj   +1 more source

The role of lipid dysregulation and vascular risk factors in glaucomatous retrobulbar circulation

open access: yesBiomolecules & Biomedicine, 2015
The aim of this study was to evaluate selected lipid-related and vascular factors and their effect on retrobulbar hemodynamics in glaucoma. Fifty-six patients with primary open angle glaucoma (POAG) [POAG group; mean age 68.32 years (SD±0.21)] and 54 ...
Monika Modrzejewska   +3 more
doaj   +1 more source

Decreased Ocular Perfusion Pressure Associated With Reverse Ophthalmic Artery Flow on Transcranial Doppler Ultrasonography. [PDF]

open access: yesCureus
Innovative applications of clinical ocular diagnostic tools are emerging to help identify systemic disorders that extend beyond ocular diseases. Ophthalmodynamometry (ODM) is a screening tool that non-invasively determines mean central retinal artery ...
Murillo BA, Cheng AM, Tsai J, Gupta SK.
europepmc   +2 more sources

Application Value of Optical Coherence Tomography to Detect Neuronal Damage in Hypertensive Retinopathy [PDF]

open access: yesZhongguo quanke yixue
Background The current prevalence of hypertension is increasing year by year, and its ocular complication, hypertensive retinopathy, is also receiving increasing attention.
ZHAO Runze, SUN Xiaojia, Hernandez MELBA Marquez, DOU Guorui
doaj   +1 more source

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