Results 131 to 140 of about 88,639 (264)

An eye on long‐duration spaceflight: Controversies, countermeasures and challenges

Experimental Physiology, EarlyView.
Abstract Space flight‐associated neuroocular syndrome (SANS) is a consequence of long‐duration space flight and is detected in two‐thirds of astronauts. In‐flight, this can cause a change in the refraction of the eyes, requiring graded hypermetropic ‘superfocus adjustable’ glasses, optic nerve head oedema and choroidal folds.
Vincent Wing Sum Ng, Susan Patricia Mollan   +1 more
wiley   +1 more source

Thrombus and branch retinal vein occlusion [PDF]

, 2018
Branch retinal vein occlusion (BRVO) is often associated with arteriosclerosis. Typically the occlusion occurs at an arteriovenous crossing. We report a case of a previously healthy patient who developed a BRVO.
Baglivo, Edoardo, Dosso, André, Pournaras, Constantin   +2 more
core  

DELP Treatment on Vision and Retinal Microcirculation in Patients With Acute Ischemic Stroke: Report of Five Cases and Literature Review

Therapeutic Apheresis and Dialysis, Volume 30, Issue 2, Page 168-175, April 2026.
ABSTRACT Background The delipid extracorporeal lipoprotein filter from plasma (DELP) treatment can effectively reduce blood lipid, increase blood flow, and improve neurological deficits in patients with acute ischemic stroke (AIS). However, its effect on vision and retinal microcirculation in stroke patients has never been reported.
Ning Li, Ronghua Hong, Hua You, Feiping Xu, Qingjun Zhang, Yiwen Lin, Yuting Su, Danmei Lan, Lingjing Jin, Junhui She   +9 more
wiley   +1 more source

Long-term management of non-ischemic central retinal vein occlusion with fluocinolone acetonide intravitreal implant 190 μg (ILUVIEN®)

Therapeutic Advances in Ophthalmology, 2019
Introduction: Macular edema after central retinal vein occlusion is a common cause of vision loss. Upregulation of vascular endothelial growth factor and higher levels of inflammatory mediators have been involved in the pathogeny of the macular edema in ...
João Coelho, Bernardete Pessoa, Angelina Meireles   +2 more
doaj   +1 more source

Association of Optical Coherence Tomography Angiography of Collaterals in Retinal Vein Occlusion With Major Venous Outflow Through the Deep Vascular Complex

JAMA ophthalmology, 2018
Importance Analysis of collateral vessel formation following retinal vein occlusion may advance our understanding of the venous outflow anatomy in the macula.
K. Freund, D. Sarraf, Belinda C. S. Leong, S. Garrity, K. Vupparaboina, K. Dansingani, K. Dansingani   +6 more
semanticscholar   +1 more source

EHD4 and ASAP2 are critical negative regulators of the claudin‐5‐based endothelial barrier

The FEBS Journal, Volume 293, Issue 7, Page 2067-2085, April 2026.
Cell‐surface CLDN‐5 protein levels can be evaluated using a probe that can bind to the extracellular domains of CLDN‐5. A probe derived from Clostridium perfringens enterotoxin allows us to isolate cells with high CLDN‐5 protein levels from a knockout cell library.
Yosuke Hashimoto, Gergő Porkoláb, Natalie Hudson, Jeffrey O'Callaghan, Nicole Hanley, Conor Delaney, Mária A. Deli, Peter Westenskow, Matthew Campbell   +8 more
wiley   +1 more source

A computational model for retinal haemodynamics under gravitational and postural variations

The Journal of Physiology, Volume 604, Issue 7, Page 2698-2716, 1 April 2026.
Abstract figure legend The haemodynamic impact of gravitational and postural changes on the retina, and its relevance to spaceflight associated neuro‐ocular syndrome (SANS), remains incompletely characterized. This study assesses retinal haemodynamics from upright to head‐down tilt using a lumped‐parameter model that dynamically couples intraocular ...
Michele Nigro, Andrea Montanino, Eduardo Soudah   +2 more
wiley   +1 more source

Multimodal images of chronic branch retinal vein occlusion

International Medical Case Reports Journal, 2017
Stephen G Schwartz, Armando Monroig, Harry W Flynn Jr Department of Ophthalmology, Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, FL, USA Abstract: Two illustrative cases of chronic branch retinal vein occlusion ...
Schwartz SG, Monroig A, Flynn HW Jr
doaj  

Retinal Microvasculature and Visual Acuity in Eyes With Branch Retinal Vein Occlusion: Imaging Analysis by Optical Coherence Tomography Angiography.

Investigative Ophthalmology and Visual Science, 2017
Purpose To investigate microvascular changes in the superficial capillary plexus (SCP) and deep capillary plexus (DCP) in eyes with resolved branch retinal vein occlusion (BRVO) and their association with best-corrected visual acuity (BCVA).
Taku Wakabayashi, Tatsuhiko Sato, Chikako Hara-Ueno, Yoko Fukushima, K. Sayanagi, Nobuhiko Shiraki, M. Sawa, Y. Ikuno, H. Sakaguchi, K. Nishida   +9 more
semanticscholar   +1 more source

Role of Transthoracic Echocardiography in the Evaluation of Patients with Retinal Vein Occlusion [PDF]

Journal of Cardio-Thoracic Medicine, 2014
Introduction: Retinal vein occlusion  is a common vascular disorder disrupting vision. Two basic types of RVO are branch retinal vein occlusion and central retinal vein occlusion (CRVO).  Retinal vein occlusion is a multifactor process including systemic
Afsoon Fazlinezhad, Toka Banaee, Ali Azari, Leila Bigdelu, Mojde Amini   +4 more
doaj   +2 more sources