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Specialty: Opthalmology

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Total 380 results found since Jan 2013.

A Case of Tacrolimus-Induced Posterior Reversible Encephalopathy Syndrome Initially Presenting as a Bilateral Optic Neuropathy
Conclusion: Tacrolimus may be associated with optic neuropathy and PRES at the initial presentation to an ophthalmologist.Case Rep Ophthalmol 2019;10:140 –144
Source: Case Reports in Ophthalmology - April 24, 2019 Category: Opthalmology Source Type: research

Seeing is not believing
Alexia without agraphia is an interesting and distinctive visual disconnection syndrome that results from damage to the dominant left occipital lobe and splenium of the corpus callosum. Although the patient can see individual letters (from the intact right occipital cortex), the damage to the corpus callosum results in disconnection of the transmission of information from the intact right occipital lobe to the intact left angular gyrus. This disconnection produces the symptom of alexia without agraphia. In the acute setting, posterior cerebral artery infarct is the most common cause. Prompt recognition of this unique strok...
Source: Survey of Ophthalmology - April 2, 2019 Category: Opthalmology Authors: Zane Foster, Ashwini Kini, Bayan Al Othman, Andrew G. Lee, Michael Vaphiades Tags: Clinical challenges Source Type: research

Stroke Risk and Risk Factors in Patients With Central Retinal Artery Occlusion
We thank Dr Brown for her interest in our article and for the opportunity to respond and re-emphasize important aspects of preventing stroke in patients with central retinal artery occlusion (CRAO).
Source: American Journal of Ophthalmology - February 28, 2019 Category: Opthalmology Authors: Patrick Lavin, Morgan Patrylo, Matthew Hollar, Kiersten B. Espaillat, Howard Kirshner, Matthew Schrag Tags: Correspondence Source Type: research

Rate of strokes 1  year after retinal artery occlusion with analysis of risk groups.
CONCLUSION:: The number of strokes/transitory ischemic attacks within the first year is relatively low after retinal artery occlusion and patients that already had a previous stroke, transitory ischemic attack, and/or amaurosis fugax before retinal artery occlusion seem to have a higher risk for a cerebrovascular event after retinal artery occlusion. PMID: 30782009 [PubMed - as supplied by publisher]
Source: European Journal of Ophthalmology - February 19, 2019 Category: Opthalmology Authors: Leisser C, Findl O Tags: Eur J Ophthalmol Source Type: research

Link Between Air Pollution and Intraocular Pressure
Ambient air pollution is currently a significant environmental risk to health. Black carbon (BC) is a component of atmospheric particulate matter that has a diameter of less than 2.5 μm. Because of this small size, these particles tend to stay in the air longer and are prone to be inhaled. Long-term exposure to BC has been associated with health hazards, such as adverse birth outcomes, respiratory disease, diabetes, atherosclerosis, stroke, and decline in cognitive function. Oc ular diseases, such as dry eye, have also been found to be associated with air pollution. However, whether ambient air pollution is associated wit...
Source: JAMA Ophthalmology - February 1, 2019 Category: Opthalmology Source Type: research

Retinal dystrophy associated with a single-base deletion mutation in mitochondrial DNA 3271 in patient with MELAS syndrome
ConclusionsThese findings indicate that the RPE atrophy was wider and the rod dysfunction was more severe affected than that of previously reported MELAS cases with the m.3243A  >  G mutation.
Source: Documenta Ophthalmologica - January 30, 2019 Category: Opthalmology Source Type: research

Central retinal artery occlusion – a new, provisional treatment approach
The retinal ganglion cells infarcted in central retinal artery occlusion (CRAO) are the somata of the optic nerve axons, part of the central nervous system. Consequently, CRAO with inner retinal infarction is a small vessel stroke, usually with the devastating consequence of severe visual loss in the affected eye. At present, there is no generally accepted, evidence-based therapy of non-arteritic CRAO in contrast to ischemic cerebral stroke that has well accepted treatment protocols. Widely divergent and controversial therapeutic options for CRAO reflect the desperation of treating physicians and disparate conflicting studies.
Source: Survey of Ophthalmology - January 29, 2019 Category: Opthalmology Authors: Argyrios Chronopoulos, James S. Schutz Tags: Major review Source Type: research

Central retinal artery occlusion —A new, provisional treatment approach
The retinal ganglion cells infarcted in central retinal artery occlusion (CRAO) are the somata of the optic nerve axons, part of the central nervous system. Consequently, CRAO with inner retinal infarction is a small vessel stroke, usually with the devastating consequence of severe visual loss in the affected eye. At present, there is no generally accepted, evidence-based therapy of nonarteritic CRAO in contrast to ischemic cerebral stroke that has well-accepted treatment protocols. Widely divergent and controversial therapeutic options for CRAO reflect the desperation of treating physicians and disparate conflicting studies.
Source: Survey of Ophthalmology - January 28, 2019 Category: Opthalmology Authors: Argyrios Chronopoulos, James S. Schutz Tags: Major review Source Type: research

Acute Vascular Ischemic Events in Patients with Central Retinal Artery Occlusion in the United States: A Nationwide Study 2003-2014
Central retinal artery occlusion (CRAO) confers a high risk of acute vascular ischemic events, including stroke and myocardial infarction (MI). Understanding the burden and risk factor profile of these ischemic events can serve as a valuable guide for ophthalmologists in the management and appropriate referral of these patients.
Source: American Journal of Ophthalmology - January 26, 2019 Category: Opthalmology Authors: Tahreem A. Mir, Ahmad Z. Arham, Wei Fang, Fahad Alqahtani, Mohamad Alkhouli, Julia Gallo, David M. Hinkle Tags: Original Articles Source Type: research

Risk of Stroke after Nonarteritic Anterior Ischemic Optic Neuropathy
To determine whether nonarteritic ischemic optic neuropathy (NAION) raises the risk of subsequent stroke in the general population.
Source: American Journal of Ophthalmology - January 9, 2019 Category: Opthalmology Authors: Sang Jun Park, Hee Kyung Yang, Seong Jun Byun, Kyu Hyung Park, Jeong-Min Hwang Tags: Original Articles Source Type: research

Intravitreal bevacizumab treatment for neovascular age-related macular degeneration and thromboembolic events.
CONCLUSION:: In our study population, patients treated with intravitreal bevacizumab were significantly more likely to experience stroke during 2 years after first injection. PMID: 30618282 [PubMed - as supplied by publisher]
Source: European Journal of Ophthalmology - January 8, 2019 Category: Opthalmology Authors: Weinstein O, Abu Tailakh M, Lifshitz T, Novack V, Levy J Tags: Eur J Ophthalmol Source Type: research

Stroke Risk and Risk Factors in Patients With Central Retinal Artery Occlusion
We read with interest the recently published article1 and commentaries2,3 on the stroke risk and acute management of patients with central retinal artery occlusion (CRAO). As emphasized by Lavin and associates,1 CRAO patients have a high risk of stroke and cardiovascular events. In Lavin and associates' series of 103 patients with acute CRAO seen within 7  days of onset of visual loss, 37.3% of the 67 patients with brain magnetic resonance imaging had coincident acute strokes, 36.7% of patients had severe carotid disease (greater than 70% stenosis, dissection, or intra-arterial thrombus), 33% presented with hypertensive...
Source: American Journal of Ophthalmology - December 19, 2018 Category: Opthalmology Authors: Valerie Biousse, Nancy J. Newman Tags: Correspondence Source Type: research

Presence of diabetic retinopathy is associated with worse 10 ‐year mortality among Indigenous Australians in Central Australia: The Central Australian ocular health study
Conclusion and RelevanceThe presence of any DR among those with DM, was associated with a 75% greater 10 ‐y all‐cause mortality rate and were more likely to die from renal failure or stroke. We recommend that whenever DR is noted among Indigenous Australians with DM, that they be immediately referred for investigation and management of risk factors, which might predispose to renal failure and strok e.
Source: Clinical and Experimental Ophthalmology - November 14, 2018 Category: Opthalmology Authors: John Landers, Ebony Liu, Jos é Estevez, Tim Henderson, Jamie E. Craig Tags: ORIGINAL ARTICLE Source Type: research

Patterns of Cortical Visual Field Defects From Embolic Stroke Explained by the Anastomotic Organization of Vascular Microlobules
Abstract: The cerebral cortex is supplied by vascular microlobules, each comprised of a half dozen penetrating arterioles that surround a central draining venule. The surface arterioles that feed the penetrating arterioles are interconnected via an extensively anastomotic plexus. Embolic occlusion of a small surface arteriole rarely produces a local infarct, because collateral blood flow is available through the vascular reticulum. Collateral flow also protects against infarct after occlusion of a single penetrating arteriole. Cortical infarction requires blockage of a major arterial trunk, with arrest of blood flow to a...
Source: Journal of Neuro-Ophthalmology - November 13, 2018 Category: Opthalmology Tags: Jacobson Lecture Source Type: research