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Specialty: Opthalmology

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Total 380 results found since Jan 2013.

Racial Differences in Retinal Vessel Geometric Characteristics: A Multiethnic Study in Healthy Asians Clinical and Epidemiologic Research
Conclusions. We found that among ethnic groups composed of healthy Chinese, Malay, and Indians, there were statistically significant differences in several retinal parameters. There exist racial influences in retinal vascular parameters and other yet unknown or unmeasured environmental factor or lifestyle habits and genetic variations not related to race that may also contribute to these differences.
Source: Investigative Ophthalmology - May 29, 2013 Category: Opthalmology Authors: Li, X., Wong, W. L., Cheung, C. Y.-l., Cheng, C.-Y., Ikram, M. K., Li, J., Chia, K. S., Wong, T. Y. Tags: Clinical and Epidemiologic Research 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

Is carotid ultrasound necessary in the clinical evaluation of the asymptomatic hollenhorst plaque? (An american ophthalmological society thesis).
CONCLUSIONS: Hollenhorst plaques are a marker of significant carotid disease irrespective of retinal symptoms. Carotid auscultation remains important in the examination of patients with Hollenhorst plaques and increases the yield of asymptomatic patients diagnosed with carotid stenosis. The presence of visual symptoms on presentation did not correlate with an increased risk of death or stroke compared to asymptomatic patients during follow-up. Therefore all patients with asymptomatic plaques should have a medical workup, including carotid ultrasonography. PMID: 24072943 [PubMed - in process]
Source: Transactions of the American Ophthalmological Society - September 1, 2013 Category: Opthalmology Authors: Bakri SJ, Luqman A, Pathik B, Chandrasekaran K Tags: Trans Am Ophthalmol Soc Source Type: research

Reply: ‘Central retinal artery occlusion and cerebral stroke’
Reply: ‘Central retinal artery occlusion and cerebral stroke’ Eye advance online publication, October 4 2013. doi:10.1038/eye.2013.216 Authors: A W Lee, C S Chen, S Cugati & D Varma
Source: Eye - October 4, 2013 Category: Opthalmology Authors: A W Lee Source Type: research

Branch retinal artery occlusion following radiation therapy to the head and neck: a case report
Conclusion: This case demonstrates that patients receiving radiation to the head and neck may be at increased risk for developing a BRAO secondary to atherosclerotic changes of vessels adjacent to the radiation target. Given this risk, it may be reasonable to obtain carotid artery imaging in patients with a history of cervical radiation who present with sudden or transient visual field defects, even in the absence of other conventional risk factors for atherosclerosis.
Source: BMC Ophthalmology - Latest articles - November 1, 2013 Category: Opthalmology Authors: Helen JiangMaxwell StemJerome Finkelstein 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

An audit of management practices in patients with suspected temporary monocular blindness.
CONCLUSION: There is a need to improve professional awareness of the importance of starting best medical therapy and performing CEA as soon as possible after onset of TMB. PMID: 24187055 [PubMed - as supplied by publisher]
Source: The British Journal of Ophthalmology - November 1, 2013 Category: Opthalmology Authors: Naylor AR, Robinson TG, Eveson D, Burns J Tags: Br J Ophthalmol Source Type: research

Broad-based visual benefits from training with an integrated perceptual-learning video game.
Abstract Perception is the window through which we understand all information about our environment, and therefore deficits in perception due to disease, injury, stroke or aging can have significant negative impacts on individuals' lives. Research in the field of perceptual learning has demonstrated that vision can be improved in both normally seeing and visually impaired individuals, however, a limitation of most perceptual learning approaches is their emphasis on isolating particular mechanisms. In the current study, we adopted an integrative approach where the goal is not to achieve highly specific learning but...
Source: Vision Research - January 6, 2014 Category: Opthalmology Authors: Deveau J, Lovcik G, Seitz AR Tags: Vision Res Source Type: research

Is the Association Between Smoking and the Retinal Venular Diameter Reversible Following Smoking Cessation? Retina
Conclusions. Wider retinal venular caliber is associated with smoking in Japanese females; however, this association becomes nonsignificant after 10 or more years of smoking cessation, suggesting that the impact of smoking on retinal venular dilation is reversible following long-term smoking cessation.
Source: Investigative Ophthalmology - January 21, 2014 Category: Opthalmology Authors: Yanagi, M., Misumi, M., Kawasaki, R., Takahashi, I., Itakura, K., Fujiwara, S., Akahoshi, M., Neriishi, K., Wong, T. Y., Kiuchi, Y. Tags: Retina Source Type: research

Risk of ischaemic stroke associated with intravitreal bevacizumab – a hospital‐based case‐crossover study
Source: Acta Ophthalmologica - February 1, 2014 Category: Opthalmology Authors: Ming‐Hung Hsieh, Chia‐Chin Liao, Jen‐Chieh Lin Tags: Letter to the Editor Source Type: research

Vascular considerations in glaucoma patients of African and European descent
Abstract Glaucoma is the leading cause of blindness in individuals of African descent (AD). While open‐angle glaucoma (OAG) disproportionately affects individuals of AD compared with persons of European descent (ED), the physiological mechanisms behind this disparity are largely unknown. The more rapid progression and greater severity of the disease in persons of AD further raise the concern for identifying these underlying differences in disease pathophysiology between AD and ED glaucoma patients. Ocular structural differences between AD and ED patients, including larger optic disc area, cup:disc ratio and thinner corne...
Source: Acta Ophthalmologica - January 25, 2014 Category: Opthalmology Authors: Andrew Huck, Alon Harris, Brent Siesky, Nathaniel Kim, Michael Muchnik, Priyanka Kanakamedala, Annahita Amireskandari, Leslie Abrams‐Tobe Tags: Review Article 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

How urgent is the treatment of transient vision loss?
Amaurosis fugax, or transient monocular blindness (TMB) from an embolic phenomenon, represents an ophthalmic form of a cerebrovascular transient ischaemic attack (TIA), and it has been associated with an increased risk of hemispheric stroke. In this issue of the BJO, Naylor R et al1 describe the changes in physician behaviour after instituting a streamlined referral system for TMB patients to a TIA clinic, where optimal medical and rapid surgical treatment (where appropriate) were provided. They did not attempt to measure improved outcomes, taking them as a given based on their assessment of the recent literature, and they...
Source: British Journal of Ophthalmology - May 17, 2014 Category: Opthalmology Authors: Subramanian, P. S. Tags: Retina, Vision, Neurology Editorials Source Type: research

An audit of management practices in patients with suspected temporary monocular blindness
Conclusion There is a need to improve professional awareness of the importance of starting best medical therapy and performing CEA as soon as possible after onset of TMB.
Source: British Journal of Ophthalmology - May 17, 2014 Category: Opthalmology Authors: Naylor, A. R., Robinson, T. G., Eveson, D., Burns, J. Tags: Public health, Vision, Neurology Original articles - Clinical science Source Type: research

Macular dystrophy associated with the mitochondrial DNA A3243G mutation: pericentral pigment deposits or atrophy? Report of two cases and review of the literature
Conclusion: Observation of RPE abnormalities in the context of suggestive systemic findings should prompt mtDNA testing.
Source: BMC Ophthalmology - Latest articles - June 6, 2014 Category: Opthalmology Authors: Alejandra DaruichAlexandre MatetFrançois-Xavier Borruat Source Type: research