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Total 369 results found since Jan 2013.

Measurement of intraocular temperature in glaucoma: week-day and seasonal fluctuations
Conclusions This study demonstrates the feasibility of continual and long-term measurement of IOT using intraocular sensors. The results show significant short-term and long-term fluctuations of IOT. Research is warranted to understand the impact of IOT variations on IOP, ocular perfusion and glaucoma progression.
Source: British Journal of Ophthalmology - June 22, 2023 Category: Opthalmology Authors: Mansouri, K., Gillmann, K., Rao, H. L., Szurman, P., Weinreb, R. N., ARGOS -2 Study Group, Haus, Reifschneider, Rickmann, Wakili, Emmerich, Hoogmartens, Lambert, Januschowski, Elling, Schultz, Kersten-Gomez, Lorenz, GIers, Beck, Nobl, Freissinger Tags: Original articles - Clinical science Source Type: research

Neovascular Glaucoma Associated with Chronic Rhegmatogenous Retinal Detachment
CONCLUSIONS: In eyes with a chronic retinal detachment history, iris neovascularization and neovascular glaucoma can develop due to retinal capillary obstruction and chronic retinal ischemia, even after achieving retinal reattachment. We suggest regular follow-up examinations for patients with chronic retinal detachment, particularly for eyes with retinal nonperfusion, as detected on fundus fluorescein angiography.PMID:37309555 | DOI:10.3341/kjo.2022.0066
Source: Korean Journal of Ophthalmology : KJO - June 13, 2023 Category: Opthalmology Authors: Dong Ik Kim Min Seok Kim Se Joon Woo Source Type: research

Region-related and layer-specific permeability of the iris vasculature with morphological mechanism: A novel understanding of blood-aqueous barrier
This study investigates the permeability of the iris microvasculature to plasma-derived protein and correspond it with the morphologic characteristics of vascular mural cells (MCs). Twenty-two enucleated porcine eyes were used in this study. 12 eyes were micro-perfused with vehicle alone as control or with FITC-albumin as a marker of protein leakage and histological sections subsequently made to examine for FITC-albumin presence. The other 10 eyes were immunolabeled via micro-perfusion for αSMA and VE-cadherin to investigate their topographic distribution in the porcine iris vasculature, and to cross correspond with the l...
Source: Experimental Eye Research - March 22, 2023 Category: Opthalmology Authors: Hongfang Yang Yu Hou Paula K Yu Wenhan Lu Xinghuai Sun Dao-Yi Yu Source Type: research

Ocular and systemic determinants of perifoveal and macular vessel parameters in healthy African Americans
Conclusions When interpreting OCTA images in a clinical setting, it is important to consider the effects ocular and systemic characteristics may have on the macular microcirculation.
Source: British Journal of Ophthalmology - March 22, 2023 Category: Opthalmology Authors: Richter, G. M., Lee, J. C., Khan, N., Vorperian, A., Hand, B., Burkemper, B., Zhou, X., Chu, Z., Wang, R., Varma, R., Kashani, A. H. Tags: Original articles - Clinical science Source Type: research

Abnormal Systemic and Ocular Responses to the Valsalva Manoeuvre in Primary Open-Angle Glaucoma: A Case for Autonomic Failure?
ConclusionPatients with POAG showed more pronounced fluctuations in IOP, MAP, MOPP and ChT during the VM than controls. These reactions could be associated with autonomic dysfunction in POAG.
Source: Journal of Huazhong University of Science and Technology -- Medical Sciences -- - March 17, 2023 Category: Research Source Type: research

Choroidal Microvasculature Dropout in Glaucoma
Semin Ophthalmol. 2023 Mar 6:1-7. doi: 10.1080/08820538.2023.2187258. Online ahead of print.ABSTRACTGlaucoma is a group of diseases characterized by distinctive visual field defect and optic nerve atrophy usually associated with elevated intraocular pressure (IOP). It is one of the most serious visual disorders and the leading cause of irreversible blindness worldwide. As a multifactorial disease, the pathogenesis of glaucoma is complicated and has been far from fully understood, where vascular factors are recognized to play an important role in its development and progression of glaucoma. Empirical researches have shown t...
Source: Seminars in Ophthalmology - March 7, 2023 Category: Opthalmology Authors: Yanzhi Guo Shouyue Huang Shushu Xu Yisheng Zhong Source Type: research

The Effect of the Water Drinking Test on Ocular Parameters and Choroidal Thickness in Glaucoma Suspects
Conclusions: Despite elevations in IOP and significant changes in all the assessed systemic parameters, the WDT was not associated with changes in choroidal thickness in glaucoma suspects.PMID:36837582 | PMC:PMC9964822 | DOI:10.3390/medicina59020381
Source: Medicina (Kaunas) - February 25, 2023 Category: Universities & Medical Training Authors: Stylianos A Kandarakis Andreas Katsimpris Persefoni Kourti Filippos Psinakis Efthymios Karmiris Evangelia Papakonstantinou Konstantinos Andreanos Petros Petrou Ilias Georgalas Source Type: research