Nitric oxide regulates retinal vascular tone in humans

GT Dorner, G Garhofer, B Kiss… - American Journal …, 2003 - journals.physiology.org
The purpose of the present study was to investigate the contribution of basal nitric oxide
(NO) on retinal vascular tone in humans. In addition, we set out to elucidate the role of NO in …

[HTML][HTML] Regulation of choroidal blood flow during combined changes in intraocular pressure and arterial blood pressure

E Polska, C Simader, G Weigert… - … & visual science, 2007 - arvojournals.org
purpose. To test the hypothesis that human choroidal blood flow (ChBF) may depend, not
only on ocular perfusion pressure (OPP), but also on absolute mean arterial pressure (MAP) …

Evaluation of the Zeiss retinal vessel analyser

K Polak, G Dorner, B Kiss, E Polska, O Findl… - British Journal of …, 2000 - bjo.bmj.com
AIM To investigate the reproducibility and sensitivity of the Zeiss retinal vessel analyser, a
new method for the online determination of retinal vessel diameters in healthy subjects …

Regulation of human retinal blood flow by endothelin-1

K Polak, A Luksch, B Frank, K Jandrasits… - Experimental eye …, 2003 - Elsevier
There is evidence from in vitro and animal studies that endothelin is a major regulator of
retinal blood flow. We set out to characterize the role of the endothelin-system in the blood …

[HTML][HTML] Choroidal hemodynamic changes during isometric exercise in patients with inactive central serous chorioretinopathy

M Tittl, N Maar, E Polska, G Weigert… - … & Visual Science, 2005 - iovs.arvojournals.org
purpose. Imaging studies suggest that the choroidal vasculature may be altered in central
serous chorioretinopathy. Little is known, however, about the regulation of ocular blood flow …

[HTML][HTML] Comparison of choroidal and optic nerve head blood flow regulation during changes in ocular perfusion pressure

D Schmidl, A Boltz, S Kaya… - … & visual science, 2012 - iovs.arvojournals.org
Purpose.: We compared the response of choroidal and optic nerve head blood flow (ChBF,
ONHBF) in response to an increase in ocular perfusion pressure (OPP) during isometric …

[HTML][HTML] Role of endothelin-1 in choroidal blood flow regulation during isometric exercise in healthy humans

G Fuchsjäger-Mayrl, A Luksch… - … & visual science, 2003 - iovs.arvojournals.org
purpose. There is evidence that the choroid has some autoregulatory capacity in response
to changes in ocular perfusion pressure (OPP). The mediators of this response are hitherto …

RI in central retinal artery as assessed by CDI does not correspond to retinal vascular resistance

E Polska, K Kircher, P Ehrlich… - American Journal …, 2001 - journals.physiology.org
The aim of the present study was to investigate the association between ultrasound Doppler
measurements of resistive index (RI) in the central retinal artery and retinal vascular …

Calculation of the diameter of the central retinal artery from noninvasive measurements in humans

GT Dorner, E Polska, G Garhöfer, C Zawinka… - Current eye …, 2002 - Taylor & Francis
Purpose. The aim of the present study was to calculate the diameter of the central retinal
artery from results as obtained with non-invasive techniques in healthy young subjects …

Retinal blood flow in type 1 diabetic patients with no or mild diabetic retinopathy during euglycemic clamp

B Pemp, E Polska, G Garhofer, M Bayerle-Eder… - Diabetes …, 2010 - Am Diabetes Assoc
OBJECTIVE To compare total retinal blood flow in diabetic patients with no or mild
nonproliferative diabetic retinopathy and healthy control subjects and to investigate in …