• Filter By:
• Specialty
• Source
• Condition
• Cancer
• Infectious Disease
• Drug
• Training
• Management
• Procedure
• Therapy
• Vaccine
• Nutrition
• Country

Imaging retina to study dementia and stroke
Publication date: Available online 3 January 2017 Source:Progress in Retinal and Eye Research Author(s): Carol Yim-lui Cheung, M. Kamran Ikram, Christopher Chen, Tien Yin Wong With increase in life expectancy, the number of persons suffering from common age-related brain diseases, including neurodegenerative (e.g., dementia) and cerebrovascular (e.g., stroke) disease is expected to rise substantially. As current neuro-imaging modalities such as magnetic resonance imaging may not be able to detect subtle subclinical changes (resolution <100–500 μm) in dementia and stroke, there is an urgent need for other comple...
Source: Progress in Retinal and Eye Research - January 2, 2017 Category: Opthalmology Source Type: research

Purtscher-Like Retinopathy with Cardioembolic Stroke: Case Report and Literature Review
We present a case of PUR associated with a cardioembolic stroke in a patient following temporary cessation of anticoagulant therapy for a surgical procedure. Our patient presented with multiple risk factors for PUR and classic signs and symptoms including multiple peripapillary white retinal lesions near arterioles and sudden unilateral decrease in visual acuity. Optical coherence tomography showed inner retinal hyperreflectivity and thinning consistent with inner retinal ischemia, and fluorescein angiography showed delayed retinal filling. Her complement C5 factor was elevated on laboratory testing. Brain magnetic resonan...
Source: Case Reports in Ophthalmology - November 17, 2022 Category: Opthalmology Source Type: research

Occipito-temporal infarction manifesting as isolated visual perceptual abnormalities: A rare case of posterior cerebral artery stroke
Eur J Ophthalmol. 2021 Oct 7:11206721211046146. doi: 10.1177/11206721211046146. Online ahead of print.ABSTRACTIschemic stroke in the Posterior Cerebral Artery (PCA) territory is an uncommon entity. Majority present with visual field defects while isolated visual perceptual abnormalities are an exceptional manifestation. About 60 year old hypertensive patient presented with vague symptoms of blurring of vision and palinopsia. Defective color vision was recorded in superior quadrants. Perimetry revealed bilateral congruous left superior quadrantanopia. Magnetic Resonance Imaging (MRI) disclosed right PCA infarct involving oc...
Source: European Journal of Ophthalmology - October 7, 2021 Category: Opthalmology Authors: V Muthu Krishnan A R Rajalakshmi Upasana Pokal Koushik Shivakumar Source Type: research

Co-occurrence of Acute Retinal Artery Occlusion and Acute Ischemic Stroke: Diffusion-Weighted Magnetic Resonance Imaging Study
In their article, “Co-occurrence of acute retinal artery occlusion and acute ischemic stroke: Diffusion-weighted magnetic resonance imaging study,” Lee and associates recommend emergent evaluation of patients with suspected brain or retinal ischemia.1 The accompanying editorial, in the wording of its title, “Acute retinal arterial ischemia: An emergency often ignored,” also suggests that emergency evaluation of these patients is necessary.2 Lee and associates make the following points in the discussion of their study:1
Source: American Journal of Ophthalmology - September 27, 2014 Category: Opthalmology Authors: Steven Cohen Tags: Correspondence Source Type: research

Case Series: Bilateral Homonymous Visual Field Defects Due to Bilateral Ischemic Strokes
CONCLUSIONS Bilateral homonymous visual field defects due to bilateral strokes are rare. Patient history, a careful neuro-ophthalmological examination, and correlation of visual field defect patterns with neuroimaging should prompt the clinician to the presence of this unique entity.
Source: Optometry and Vision Science - November 1, 2018 Category: Opthalmology Tags: REPORTS Source Type: research

Jak2 mutation-positive polycythemia vera presenting as central retinal artery occlusion
Conclusion: Central retinal artery occlusion, a disease with a frequently devastating visual outcome, is often not an “isolated” ocular occurrence. In the absence of an obvious local trigger, a thorough work-up is always warranted, especially in younger patients, as the ocular pathology oftentimes may herald severe cerebro-cardiovascular events.
Source: Retinal Cases and Brief Reports - March 31, 2015 Category: Opthalmology Tags: Case Report Source Type: research

A Case of Diagnosis of Occipital Lobe Epilepsy Complicated by Right Hemianopsia Associated with Left Occipital Lobe Cerebral Infarction
We report a case of occipital lobe epilepsy (OLE) in a patient with occipital lobe stroke whose diagnosis was complicated by homonymous hemianopsia. An 81-year-old woman presented with a complaint of “blurred vision” on the right side and was kept under outpatient observation at the Hirabayashi Eye Clinic for homonymous lower right hemianopsia, glaucoma, and post-cataract surgery. Her past medical history included hypertension, angina pectoris, atrial fibrillation, diabetes mellitus, and lef t occipital lobe cerebral infarction. The corrected visual acuity and intraocular pressure were 20/16 and 12 mm Hg and 20/20 and ...
Source: Case Reports in Ophthalmology - March 17, 2022 Category: Opthalmology Source Type: research

Transneuronal Retrograde Degeneration of the Retinal Ganglion Cells in Patients with Cerebral Infarction
Conclusions: Retinal nerve fiber layer thickness was reduced in patients with cerebral infarction, providing evidence for TRD of the RGCs. Transneuronal retrograde degeneration was more pronounced in the nasal nerve fiber layer of the contralateral side and in the temporal nerve fiber layer of the ipsilateral side of cerebral damage. Financial Disclosure(s): The author(s) have no proprietary or commercial interest in any materials discussed in this article.
Source: Ophthalmology - February 11, 2013 Category: Opthalmology Authors: Hae-Young Lopilly Park, Young Gun Park, A-Hyun Cho, Chan Kee Park Tags: Original Articles Source Type: research

Isolated Third, Fourth, and Sixth Cranial Nerve Palsies from Presumed Microvascular versus Other Causes: A Prospective Study
Conclusions: In our series of patients with acute isolated ocular motor nerve palsies, a substantial proportion of patients had other causes, including neoplasm, GCA, and brain stem infarction. Brain MRI and laboratory workup have a role in the initial evaluation of older patients with isolated acute ocular motor nerve palsies regardless of whether vascular risk factors are present.Financial Disclosure(s): The author(s) have no proprietary or commercial interest in any materials discussed in this article.
Source: Ophthalmology - June 7, 2013 Category: Opthalmology Authors: Madhura A. Tamhankar, Valerie Biousse, Gui-Shuang Ying, Sashank Prasad, Prem S. Subramanian, Michael S. Lee, Eric Eggenberger, Heather E. Moss, Stacy Pineles, Jeffrey Bennett, Benjamin Osborne, Nicholas J. Volpe, Grant T. Liu, Beau B. Bruce, Nancy J. Newm Tags: Original Articles Source Type: research

Co-occurrence of acute retinal artery occlusion and acute ischemic stroke: Diffusion-weighted magnetic resonance imaging study
Source: American Journal of Ophthalmology - March 21, 2014 Category: Opthalmology Authors: Junwon Lee, Seung Woo Kim, Sung Chul Lee, Oh Woong Kwon, Young Dae Kim, Suk Ho Byeon Source Type: research

Skew Deviation: Case Report and Review of the Literature.
CONCLUSION: Skew deviation, a not uncommon clinical condition, should be promptly recognized when binocular vertical diplopia cannot be interpreted by trochlearis and oculomotor nerve lesion, myasthenia gravis, or orbital pathology. Maddox rod, cover test, Parks-Bielschowsky three-step, and other tests should help to establish the diagnosis. The prognosis depends on etiology, but it is commonly favorable; the majority of patients recover spontaneously after less than a year. More invasive management options should be discussed thereafter. PMID: 27471949 [PubMed - as supplied by publisher]
Source: Seminars in Ophthalmology - July 31, 2016 Category: Opthalmology Tags: Semin Ophthalmol Source Type: research