Search Results - "Riva, C. E."

Choroidal blood flow in the foveal region of the human ocular fundus by Riva, CE, Cranstoun, SD, Grunwald, JE, Petrig, BL

“…To develop a noninvasive method for the investigation of choroidal blood flow (ChBF) and its regulation in the foveal region of the human ocular fundus…”
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Subfoveal Choroidal Blood Flow in Response to Light-Dark Exposure by Longo, Antonio, Geiser, Martial, Riva, Charles E

“…To document the response of subfoveal choroidal blood flow (ChBF) in the human eye induced by light and dark exposures and provide some insight into the…”
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Flicker-Evoked Responses of Human Optic Nerve Head Blood Flow: Luminance versus Chromatic Modulation by Riva, Charles E, Falsini, Benedetto, Logean, Eric

“…To determine the response of human optic nerve head blood flow (R:F(onh)) to heterochromatic equiluminant flicker modulation and compare it to the response…”
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Effect of acute decreases of perfusion pressure on choroidal blood flow in humans by Riva, CE, Titze, P, Hero, M, Petrig, BL

“…To investigate the relationship between choroidal blood velocity (ChBVel), blood volume (ChBVol) and blood flow (ChBF) in the foveal region of the human ocular…”
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Changes in optic nerve head blood flow in children with cerebral malaria and acute papilloedema by Beare, N A V, Riva, C E, Taylor, T E, Molyneux, M E, Kayira, K, White, V A, Lewallen, S, Harding, S P

“…Objective: To investigate capillary blood flow in the optic nerve head (ONH) of children with cerebral malaria. Methods: Malawian children with cerebral…”
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Choroidal blood flow during isometric exercises by Riva, CE, Titze, P, Hero, M, Movaffaghy, A, Petrig, BL

“…To investigate the response of choroidal blood flow in the foveal region of the human eye to increases in mean perfusion pressure (PPm = mean ophthalmic artery…”
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Laser Doppler flowmetry in the optic nerve by Riva, C E, Harino, S, Petrig, B L, Shonat, R D

“…Laser Doppler flowmetry (LDF) is a technique that measures relative average velocity, number and flux (number times velocity) of red blood cells in a tissue…”
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Autoregulation of human optic nerve head blood flow in response to acute changes in ocular perfusion pressure by RIVA, C. E, HERO, M, TITZE, P, PETRIG, B

“…Studies in animals have demonstrated that optic nerve head (ONH) blood flow (F(onh)) is autoregulated, but there is a lack of evidence for such a process in…”
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Blood Flow in the Human Optic Nerve Head during Isometric Exercise by MOVAFFAGHY, A., CHAMOT, S.R., PETRIG, B.L., RIVA, C.E.

“…Investigating blood flow autoregulation in the optic nerve is important to understand the physiopathology of various ocular diseases such as glaucoma. This…”
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Nitric oxide and choroidal blood flow regulation by Mann, RM, Riva, CE, Stone, RA, Barnes, GE, Cranstoun, SD

“…Nitric oxide (NO) has been found to be an endothelial-derived relaxing factor mediating the vasodilatation that results from the stimulation of muscarinic…”
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Retinal haemodynamics in patients with early diabetes mellitus by Grunwald, J E, DuPont, J, Riva, C E

“…AIMS/BACKGROUND: The retinal circulation was investigated in a group of 19 patients with insulin dependent diabetes mellitus with less than 4 years of disease…”
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Variations of blood flow at optic nerve head induced by sinusoidal flicker stimulation in cats by Vo Van Toi, Riva, C E

“…1. The present investigation explored, in thirty-four anaesthetized cats, the blood flow changes at the optic nerve head elicited by sinusoidally modulated…”
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Effect of aging on retinal macular microcirculation: a blue field simulation study by Grunwald, JE, Piltz, J, Patel, N, Bose, S, Riva, CE

“…Structural changes in the retina are known to occur with aging. This study was performed to investigate whether aging also affects the retinal macular…”
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Local choroidal blood flow in the cat by laser Doppler flowmetry by Riva, CE, Cranstoun, SD, Mann, RM, Barnes, GE

“…To develop a procedure using a noninvasive technique that will allow the investigation of choroidal blood flow (ChBF) regulation in discrete regions of the cat…”
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Total retinal volumetric blood flow rate in diabetic patients with poor glycemic control by Grunwald, JE, Riva, CE, Baine, J, Brucker, AJ

“…Total retinal volumetric blood flow rate was measured in 12 normal subjects and 18 poorly controlled diabetic patients with background diabetic retinopathy…”
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Ocular Axial Length and Choroidal Thickness in Newly Hatched Chicks and One-year-old Chickens Fluctuate in a Diurnal Pattern that is Influenced by Visual Experience and Intraocular Pressure Changes by PAPASTERGIOU, GEORGIOS I., SCHMID, GREGOR F., RIVA, CHARLES E., MENDEL, MARK J., STONE, RICHARD A., LATIES, ALAN M.

“…Low coherence laser Doppler interferometry (LDI) allows high precision measurements of the axial length of the eye and of the thickness of the individual…”
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Diffuse luminance flicker increases retinal vessel diameter in humans by Formaz, F., Riva, C.E., Geiser, M.

“…PURPOSE. To determine retinal vessel diameter variations in response to neuronal activity induced by diffuse luminance flicker. METHODS. The diameter of…”
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Frequency and luminance-dependent blood flow and K+ ion changes during flicker stimuli in cat optic nerve head by Buerk, DG, Riva, CE, Cranstoun, SD

“…The purpose of this study was to investigate whether blood flow in the cat optic nerve head (ONH) is related to increased neuronal activity elicited by diffuse…”
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Nitric Oxide Has a Vasodilatory Role in Cat Optic Nerve Head during Flicker Stimuli by Buerk, Donald G., Riva, Charles E., Cranstoun, Stephen D.

“…The role of nitric oxide (NO) in the regulation of optic nerve head (ONH) blood flow was investigated from direct electrochemical measurements of NO and…”
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Autoregulation of human retinal blood flow. An investigation with laser Doppler velocimetry by Riva, CE, Grunwald, JE, Petrig, BL

“…The effect of acute changes in mean retinal perfusion pressure, P (2/3 of mean brachial artery blood pressure minus IOP), on retinal volumetric blood flow…”
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