Ophthalmology Top 20
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This page shows you the 20 most read items in the past 30 days within this specialty in the MedWorm directory.
People In Southeast Asia Needlessly Becoming Blind Due To A Neglected Virus
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Failure to diagnose and treat cytomegalovirus retinitis (CMV) in people with AIDS is leading to unnecessary blindness, according to a paper published today in the journal PLoS Medicine. [click link for full article] (Source: Eye Health / Optometry News From Medical News Today)
Source: Eye Health / Optometry News From Medical News Today - December 4, 2007 Category: Opthalmology Source Type: news
Cytomegalovirus: Cell Death May Bring New Life To Treatment Of Retinal Disease
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Just days after the first retinal cell gets infected with the common cytomegalovirus, contiguous cells start committing suicide and researchers believe their death may provide clues to better treatment of this potentially blinding infection. Understanding the cell death may also provide new insight into the larger issue of how the retina responds to assault, whether by infection or a disease process such as diabetes, said Dr. (Source: Eye Health / Optometry News From Medical News Today)
Source: Eye Health / Optometry News From Medical News Today - January 6, 2009 Category: Opthalmology Tags: Eye Health / Blindness Source Type: news
Eye Infections Caused By Adenoviruses May Be Treated With Gamma Globulin
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Gamma globulin, a type of antibody isolated from blood samples that used to be routinely given to health care workers and international travelers to protect them from infectious diseases, is a highly effective treatment for pinkeye with little apparent toxicity, according to a study by researchers at the University of Pittsburgh School of Medicine. [click link for full article] (Source: Eye Health / Optometry News From Medical News Today)
Source: Eye Health / Optometry News From Medical News Today - September 1, 2007 Category: Opthalmology Source Type: news
DEF Supports Research In Preventing Ocular Herpes And Infectious Blindness
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The Discovery Eye Foundation (DEF) announces their support and progress in the research of Ocular Herpres and Infectious Blindness. Their research continues to bring them closer to understanding new medical approaches, therapies and the molecular mechanisms of Ocular Herpes. Advancements have also been made in developing a new vaccine that would eventually prevent the spread of the Herpes Simplex Virus of the eye and genital tract. (Source: Eye Health / Optometry News From Medical News Today)
Source: Eye Health / Optometry News From Medical News Today - July 15, 2008 Category: Opthalmology Source Type: news
Primary non-hodgkins lymphoma of the lacrimal sac: mortality-related epiphora.
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We report a case of primary non-Hodgkins lymphoma of the lacrimal sac in a 60-year-old Asian lady, who presented with persistent epiphora and recurrent medial canthal swelling. Primary lymphoma of the lacrimal sac is rare and it can be easily misdiagnosed. Delayed in diagnosis may be related to mortality. To minimize the risk of overlooking specific pathology it is important to assess the appearance of the lacrimal sac and its surrounding structures intraoperatively. Biopsy of the lacrimal sac is required in cases where specific pathology is suspected.
PMID: 19874126 [PubMed - in process] (Source: Orbit)
Source: Orbit - October 31, 2009 Category: Opthalmology Authors: Maharajah KR, Hussein A, Mohamad H, Khan SA, At LS Tags: Orbit Source Type: journals
Time trends in the incidence of conjunctival melanoma in Sweden
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Conclusion:
The incidence of conjunctival melanoma increased in Sweden during the period 1960 to 2005. (Source: British Journal of Ophthalmology)
Source: British Journal of Ophthalmology - October 23, 2009 Category: Opthalmology Authors: Triay, E, Bergman, L, Nilsson, B, All-Ericsson, C, Seregard, S Tags: Original articles Source Type: journals
Malignant lymphoproliferative disorders extending into the orbit from the paranasal sinuses.
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CONCLUSION: Presenting symptoms of malignant orbital lymphoproliferative disorders extending from the paranasal sinuses include mass effect occasionally with infiltrative and inflammatory characteristics accompanied by symptoms of sinus disease. On imaging, a soft tissue mass in the sinuses and orbit with bone destruction is commonly seen. Biopsy is essential for conclusive diagnosis. Treatment should be initiated promptly as local symptoms are frequently relieved and survival is possible, especially in cases of NHL.
PMID: 19839889 [PubMed - in process] (Source: Orbit)
Source: Orbit - October 22, 2009 Category: Opthalmology Authors: Peleg A, Heran MK, White VA, Chang WY, Rootman J Tags: Orbit Source Type: journals
Recurrent conjunctival papilloma progressing into squamous cell carcinoma with change of HPV-finding during the course
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(Source: British Journal of Ophthalmology)
Source: British Journal of Ophthalmology - October 23, 2009 Category: Opthalmology Authors: Bredow, L, Martin, G, Reinhard, T, Mittelviefhaus, H, Auw-Haedrich, C Tags: Eye (globe) Education Source Type: journals
Bilateral retinochoroiditis caused by an atypical strain of Toxoplasma gondii
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Conclusion:
A highly divergent, non-archetypal strain of T gondii was responsible for causing a severe, atypical bilateral retinochoroiditis in a patient from Brazil. (Source: British Journal of Ophthalmology)
Source: British Journal of Ophthalmology - October 23, 2009 Category: Opthalmology Authors: Bottos, J, Miller, R H, Belfort, R N, Macedo, A C, UNIFESP Toxoplasmosis Group, Belfort, R, Grigg, M E Tags: Choroid, Eye (globe), Vitreous Original articles Source Type: journals
Five-Year Cycle of Basal Cell Carcinoma Management Re-audit.
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Conclusion: There was no evidence of significant recurrence to justify the 5-years' follow-up. Patients with histologically cleared tumours and satisfactory functional and cosmetic reconstruction outcome can safely be discharged to their GP and should be re referred for new lesions. The functional and cosmetic outcome of the reconstruction was generally satisfactory.
PMID: 19839887 [PubMed - in process] (Source: Orbit)
Source: Orbit - October 22, 2009 Category: Opthalmology Authors: Stafanous S Tags: Orbit Source Type: journals
Extramedullary pasmacytoma masquerading as chalazion.
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Extramedullary plasmacytoma (EMP) is a rare entity that belongs to the category of non-Hodgkin lymphoma. EMP make up 4% of all plasma cell tumors and occur mainly in the upper aerodigestive tract. Primary plasmacytoma involving the orbit is rare. There is a relation between solitary plasmacytoma and subsequent development of multiple myeloma. As no predictors of progression have been identified patients need indefinite follow-up. The authors report a case of EMP involving the eyelid in an otherwise healthy adult female.
PMID: 19839911 [PubMed - in process] (Source: Orbit)
Source: Orbit - October 22, 2009 Category: Opthalmology Authors: Maheshwari R, Maheshwari S Tags: Orbit Source Type: journals
Tumour-associated lymphangiogenesis in conjunctival malignant melanoma
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Conclusion:
Conjunctival MMs display tumour-associated LV within and around the tumour. The MM seems to induce lymphangiogenesis not only in the tumour, but also in its proximity. (Source: British Journal of Ophthalmology)
Source: British Journal of Ophthalmology - October 23, 2009 Category: Opthalmology Authors: Zimmermann, P, Dietrich, T, Bock, F, Horn, F K, Hofmann-Rummelt, C, Kruse, F E, Cursiefen, C Tags: Unlocked Original articles Source Type: journals
Graves' disease associated with primary systemic sclerosis.
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We describe the effect of MM on the endocrine orbitopathy of a patient with PSS.
PMID: 19839886 [PubMed - in process] (Source: Orbit)
Source: Orbit - October 22, 2009 Category: Opthalmology Authors: Wimmersberger Y, Zuercher D Tags: Orbit Source Type: journals
Undiagnosed squamous cell carcinoma of the forehead presenting as a tolosa-hunt syndrome.
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We describe a case of invasive squamous cell carcinoma arising from actinic keratosis and causing orbital and intracranial invasion via perineural spread. Perineural invasion (PNI) is a known feature of SCC and very rarely basal cell carcinomas of the head and neck. A high degree of clinical suspicion is necessary to diagnose PNI. Varied clinical presentations have been described for this form of dissemination, including orbital apex syndrome as in our case. Prognosis is poor, with death resulting in over 50% of cases at 5 years.
PMID: 19874122 [PubMed - in process] (Source: Orbit)
Source: Orbit - October 31, 2009 Category: Opthalmology Authors: Nieto Enriquez J, Medel Jiménez R, Huguet Redecilla P Tags: Orbit Source Type: journals
An oculoplastic use for the temporalis muscle flap.
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CONCLUSIONS: A pedicled temporalis muscle flap and split thickness skin graft is a good one-stage reconstruction technique when faced with a large area of exposed bone. The temporalis muscle provides a suitable recipient site for a split skin graft and enhances its chances of survival. This technique, to our knowledge, had not previously been reported in the literature.
PMID: 19874120 [PubMed - in process] (Source: Orbit)
Source: Orbit - October 31, 2009 Category: Opthalmology Authors: Cehajic J, Moody A, James RC, Watson G, Wearne MJ Tags: Orbit Source Type: journals
Dissociable effects of attention and crowding on orientation averaging
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We examined this idea in the context of an orientation averaging task, having subjects judge the mean orientation of a set of oriented signal elements either in isolation, or “crowded” by nearby randomly oriented elements. In some conditions, subjects also had to perform an attentionally demanding secondary task. By measuring performance at different levels of signal orientation variability, we show that crowding increases subjects' local uncertainty (about the orientation of individual elements) but that diverting attention reduces their global efficiency (the effective number of elements they can average over). Furth...
Source: Journal of Vision Articles - October 29, 2009 Category: Opthalmology Source Type: journals
Involuntary cueing effects on accuracy measures: Stimulus and task dependence
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Observers reported the orientation of a tilted grating that was presented together with a vertical distractor grating. In the main experiments, target contrast was low. There was location uncertainty because target location varied randomly and differences between target and distractor were small. In contrast to a previous report (T. Liu, F. Pestilli, & M. Carrasco, 2005), our results showed that non-informative peripheral cues do not improve perceptual performance at the cued location. However, informative peripheral or central cues improved perceptual performance. When we changed the task from an unspeeded perceptual task...
Source: Journal of Vision Articles - October 14, 2009 Category: Opthalmology Source Type: journals
Attentive and pre-attentive aspects of figural processing
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Here we use the steady-state visual evoked potential (SSVEP) to study attentive versus non-attentive processing of simple texture-defined shapes. By “tagging” the figure and background regions with different temporal frequencies, the method isolates response components associated with the figure region, the background region, and with non-linear spatio-temporal interactions between regions. Each of these response classes has a distinct scalp topography that is preserved under differing attentional task demands. In one task, attention was directed to discrimination of shape changes in the figure region. In the other tas...
Source: Journal of Vision Articles - October 19, 2009 Category: Opthalmology Source Type: journals
Portraits made to measure: Manipulating social judgments about individuals with a statistical face model
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The social judgments people make on the basis of the facial appearance of strangers strongly affect their behavior in different contexts. However, almost nothing is known about the physical information underlying these judgments. In this article, we present a new technology (a) to quantify the information in faces that is used for social judgments and (b) to manipulate the image of a human face in a way which is almost imperceptible but changes the personality traits ascribed to the depicted person. This method was developed in a high-dimensional face space by identifying vectors that capture maximum variability in judgmen...
Source: Journal of Vision Articles - October 13, 2009 Category: Opthalmology Source Type: journals
Orientation-tuned suppression in binocular rivalry reveals general and specific components of rivalry suppression
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During binocular rivalry (BR), conflicting monocular images are alternately suppressed from awareness. During suppression of an image, contrast sensitivity for probes is reduced by ~0.3–0.5 log units relative to when the image is in perceptual dominance. Previous studies on rivalry suppression have led to controversies concerning the nature and extent of suppression during BR. We tested for feature-specific suppression using orthogonal rivaling gratings and measuring contrast sensitivity to small grating probes at a range of orientations in a 2AFC orientation discrimination task. Results indicate that suppression is not ...
Source: Journal of Vision Articles - October 15, 2009 Category: Opthalmology Source Type: journals
