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Acute visual loss

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https://www.readbyqxmd.com/read/27906756/optic-neuritis-the-eye-as-a-window-to-the-brain
#1
Thomas M Jenkins, Ahmed T Toosy
PURPOSE OF REVIEW: Acute optic neuritis is a common clinical problem, requiring a structured assessment to guide management and prevent visual loss. The optic nerve is the most accessible part of the central nervous system, so optic neuritis also represents an important paradigm to help decipher mechanisms of damage and recovery in the central nervous system. Important developments include the advent of optical coherence tomography as a biomarker of central nervous system axonal loss, the discovery of new pathological antibodies, notably against aquaporin-4 and, more recently, myelin oligodendrocyte protein, and emerging evidence for sodium channel blockade as a novel therapeutic approach to address energy failure in neuroinflammatory disease...
November 30, 2016: Current Opinion in Neurology
https://www.readbyqxmd.com/read/27904988/acute-visual-loss-and-intraretinal-hemorrhages-associated-to-energy-drink-consumption
#2
Christina W Pagano, Max Wu, Lihteh Wu
PURPOSE: To report the association of acute visual loss secondary to intraretinal hemorrhages and energy drink consumption. METHODS: Case report and literature review. RESULTS: A 48-year-old hypertensive man developed an elevation in systemic blood pressure, tachycardia, and acute visual loss secondary to intraretinal hemorrhages shortly after drinking several cans of energy drinks. CONCLUSION: High consumption of energy drinks may lead to intraretinal hemorrhages and acute visual loss...
December 1, 2016: International Ophthalmology
https://www.readbyqxmd.com/read/27904477/axon-injury-induced-endoplasmic-reticulum-stress-and-neurodegeneration
#3
REVIEW
Yang Hu
Injury to central nervous system axons is a common early characteristic of neurodegenerative diseases. Depending on its location and the type of neuron, axon injury often leads to axon degeneration, retrograde neuronal cell death and progressive permanent loss of vital neuronal functions. Although these sequential events are clearly connected, ample evidence indicates that neuronal soma and axon degenerations are active autonomous processes with distinct molecular mechanisms. By exploiting the anatomical and technical advantages of the retinal ganglion cell (RGC)/optic nerve (ON) system, we demonstrated that inhibition of the PERK-eIF2α-CHOP pathway and activation of the X-box binding protein 1 pathway synergistically protect RGC soma and axon, and preserve visual function, in both acute ON traumatic injury and chronic glaucomatous neuropathy...
October 2016: Neural Regeneration Research
https://www.readbyqxmd.com/read/27865695/fusiform-left-carotid-ophthalmic-artery-aneurysm-presenting-with-central-retinal-artery-occlusion
#4
Rima M Dafer, John H Pula, Shakeel Chowdhry
Central retinal artery occlusion (CRAO) is a devastating ocular emergency characterized by acute painless visual loss in the ipsilateral eye. We describe the case of acute non-arteritic CRAO associated fusiform internal carotid-ophthalmic artery aneurysm with intraluminal thrombus. Despite the rarity of this condition, we suggest that carotid-ophthalmic artery aneurysm should be included in the differential diagnosis of CRAO.
November 16, 2016: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/27852681/interesting-case-of-base-of-skull-mass-infiltrating-cavernous-sinuses
#5
Achintya Dinesh Singh, Manish Soneja, Saba Samad Memon, Surabhi Vyas
A man aged 35 years presented with chronic headache and earache of 1-year duration. He had progressive vision loss and diplopia since last 9 months. He also had pain over the face and episodic profuse epistaxis. On examination, perception of light was absent in the right eye and hand movements were detected at 4 m distance in the left eye. Imaging revealed a lobulated mass in the nasopharynx extending into the bilateral cavernous sinuses and sphenoid sinus with bony erosions. Biopsy of the nasopharyngeal mass revealed pathological features which are characteristic of IgG4 disease...
November 16, 2016: BMJ Case Reports
https://www.readbyqxmd.com/read/27832616/-dural-arteriovenous-fistula-with-acute-visual-loss-manifestation-a-case-report
#6
Masayuki Goto, Wataro Tsuruta, Yusuke Fujiwara, Go Ikeda, Yoshiro Ito, Yoshimi Sugiura, Masanari Shiigai, Yasunobu Nakai, Tetsuya Yamamoto, Akira Matsumura
In this report, we are describing a rare case of dural arteriovenous fistula(DAVF)followed by an isolated symptom of bilateral visual acuity disturbance. The patient was a 67-year-old man suffering from progressive bilateral visual acuity disturbance. Angiography revealed a diffuse arteriovenous fistula in the left transverse-sigmoid sinus affected by severe venous congestion. Visual acuity disturbance is likely to have been caused by increased intracranial pressure(IICP). Venous congestion as well as visual acuity were gradually improved following three transarterial embolizations...
November 2016: No Shinkei Geka. Neurological Surgery
https://www.readbyqxmd.com/read/27829389/chronic-post-operative-iris-prosthesis-endophthalmitis-in-a-patient-with-traumatic-aniridia-a-case-report
#7
Kevin C Firl, Sandra R Montezuma
BACKGROUND: Post-operative endophthalmitis is a serious complication of intraocular surgery which may present acutely or chronically. Chronic post-operative endophthalmitis is characterized by decreased visual acuity, mild pain, and low-grade uveitis several weeks or months after intraocular surgery which may be responsive to corticosteroids, but recur upon tapering. Low virulence organisms such as Propionibacterium acnes are the most common culprit organisms, and treatment most often consists of both intravitreal antibiotic injections and surgery...
November 9, 2016: BMC Ophthalmology
https://www.readbyqxmd.com/read/27825352/treatment-of-kyphosis-in-ankylosing-spondylitis-by-osteotomy-through-the-gap-of-a-pathological-fracture-a-retrospective-study
#8
Hongqi Zhang, Zhenhai Zhou, Chaofeng Guo, Yuxiang Wang, Honggui Yu, Longjie Wang
BACKGROUND: Surgical interventions are commonly advocated for correcting kyphotic deformities and relieving severe back pain in ankylosing spondylitis (AS) patients. The aim of this study was to evaluate the clinical outcome of osteotomy performed through the gap of a pathological fracture for the treatment of kyphosis in ankylosing spondylitis and to introduce the key points of this novel surgical approach. METHODS: From January 1, 2010, to December 31, 2014, 13 consecutive AS patients who were treated with osteotomy through the fracture gap were retrospectively reviewed...
November 8, 2016: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/27824724/multiple-evanescent-white-dot-syndrome-with-central-visual-loss
#9
Gaetano R Barile, Sarah A Harmon
PURPOSE: To report the clinical case of a 64-year-old man who developed several features of multiple evanescent white dot syndrome (MEWDS) but with central visual loss that persisted because of significant structural macular disease. METHODS: A case report was generated by a review of the clinical course and imaging investigations of one patient, along with review of the literature. RESULTS: A 64-year-old man noted decreased vision in the right eye for 2 weeks, associated with a central scotoma with shimmering, gauze effect of the vision...
November 7, 2016: Retinal Cases & Brief Reports
https://www.readbyqxmd.com/read/27819416/neurological-manifestations-of-acute-posterior-multifocal-placoid-pigment-epitheliopathy
#10
Hussein Algahtani, Ashjan Alkhotani, Bader Shirah
BACKGROUND AND PURPOSE: Acute posterior multifocal placoid pigment epitheliopathy (APMPPE) is an immune-mediated chorioretinal disease that causes acute visual symptoms with characteristic ophthalmoscopic findings. Neurological complications are rarely reported in the literature. Here we report two new cases of APMPPE that presented with neurological manifestations, one of which was associated with peripheral neuropathy, which has not been described before. METHODS: A retrospective database review of all patients with a diagnosis of APMPPE was performed...
October 2016: Journal of Clinical Neurology
https://www.readbyqxmd.com/read/27803829/complete-vision-loss-following-orbital-cellulitis-secondary-to-acute-dacryocystitis
#11
Margaret L Pfeiffer, Alexander Hacopian, Helen Merritt, Margaret E Phillips, Karina Richani
We present a case of a 50-year-old woman with acute dacryocystitis that was complicated by posterior rupture of the lacrimal sac causing an orbital cellulitis with subsequent visual acuity of no light perception. Upon presentation, she was immediately started on broad-spectrum antibiotics and underwent surgical incision and drainage of the lacrimal sac abscess but never regained vision. There are 4 cases in the literature of permanent severe vision loss from acute dacryocystitis. Prompt diagnosis and close monitoring of acute dacryocystitis are therefore essential to prevent extension into the orbit and possible optic nerve compromise...
2016: Case Reports in Ophthalmological Medicine
https://www.readbyqxmd.com/read/27795766/-role-of-oral-antiviral-therapy-in-the-treatment-of-acute-retinal-necrosis
#12
Samia El Haouzi, Amina Jait, Omar Lezrek, Tachfouti Samira, Laghmari Amina, Ouafa Cherkaoui, Karman Abdellouahed, Rajae Daoudi
: Acute retinal necrosis syndrome (ARNS) is a rare but devastating uveitic syndrome with devastating visual outcome (visual prognosis ++). It should be diagnosed as early as possible because of its severity and its risk of bilateralization. This is a rare entity caused by the group of herpes viruses. In immunocompromised patients the complications of RNA syndrome often lead to loss of visual acuity. After the discovery of this disease using polymerase chain reaction (PCR) and immune load coefficient (ILC) usually by puncturing the cornea to evacuate the aqueous humour, the confirmation of this diagnosis allows for faster optimization of disease management decreasing the time required to confirm the diagnosis...
2016: Pan African Medical Journal
https://www.readbyqxmd.com/read/27783835/percutaneous-acetabuloplasty-for-metastatic-lesions-to-the-pelvis
#13
Ryan A Durfee, Scott A Sabo, G Douglas Letson, Odion Binitie, David Cheong
Metastatic lesions of the acetabulum can be painful and debilitating. First-line treatment is multimodal and consists of disease-specific chemotherapy, osteoclastic inhibitors, analgesics, and radiation therapy. When these therapies fail, surgical intervention usually is indicated and varies from regional defect stabilization to large periacetabular reconstructions that are demanding procedures with high rates of complications. Percutaneous cement augmentation (acetabuloplasty) of lesions in selected patients has been explored as a less invasive method of lesional control...
October 25, 2016: Orthopedics
https://www.readbyqxmd.com/read/27780399/management-of-transient-monocular-vision-loss-and-retinal-artery-occlusions
#14
Ivana Vodopivec, Dean M Cestari, Joseph F Rizzo Iii
Acute transient or permanent retinal occlusive disease requires prompt medical attention and can be an ophthalmological emergency. Central retinal artery occlusion leads to permanent and severe monocular visual loss in the majority of patients. Transient monocular vision loss leaves no permanent deficits, but requires the same level of clinical vigilance, as it portends possible future adverse events, including loss of vision and stroke. Acute treatment options remain limited, and secondary prevention of cerebral ischemic events is the mainstay of management...
October 26, 2016: Seminars in Ophthalmology
https://www.readbyqxmd.com/read/27777775/acute-visual-loss-after-ipilimumab-treatment-for-metastatic-melanoma
#15
Melissa A Wilson, Kelly Guld, Steven Galetta, Ryan D Walsh, Julia Kharlip, Madhura Tamhankar, Suzanne McGettigan, Lynn M Schuchter, Leslie A Fecher
BACKGROUND: Ipilimumab, a humanized CLTA-4 antibody is a standard therapy in the treatment of advanced melanoma. While ipilimumab provides an overall survival benefit to patients, it can be associated with immune related adverse events (IrAEs). CASE PRESENTATION: Here we describe a patient treated with ipilimumab who experienced known IrAEs, including hypophysitis, as well as a profound vision loss due to optic neuritis. There are rare reports of optic neuritis occurring as an adverse event associated with ipilimumab treatment...
2016: Journal for Immunotherapy of Cancer
https://www.readbyqxmd.com/read/27769583/-unilateral-maculopathy-in-a-young-male-patient-a-photic-laser-injury
#16
R Joubert, F Farguette, O Chevreaud, F Chiambaretta, E H Souied
We report the case of a twenty-year-old man with a unilateral maculopathy responsible for an acute visual acuity loss and a sudden absolute central scotoma. His schizoid personality made the medical history fruitless. The patient's best corrected visual acuity was 20/60. Clinical examination revealed a strictly unilateral maculopathy with pigment remodeling and hyper-autofluorescent areas. Through this case report, we describe the characteristics of the lesion and the pathway to the diagnosis: a laser pointer-induced photic injury...
October 18, 2016: Journal Français D'ophtalmologie
https://www.readbyqxmd.com/read/27769310/wristband-accelerometers-to-motivate-arm-exercise-after-stroke-waves-study-protocol-for-a-pilot-randomized-controlled-trial
#17
Sarah A Moore, Ruth Da Silva, Madelaine Balaam, Lianne Brkic, Dan Jackson, Dan Jamieson, Thomas Ploetz, Helen Rodgers, Lisa Shaw, Frederike van Wijck, Christopher Price
BACKGROUND: Loss of upper limb function affects up to 85 % of acute stroke patients. Recovery of upper limb function requires regular intensive practise of specific upper limb tasks. To enhance intensity of practice interventions are being developed to encourage patients to undertake self-directed exercise practice. Most interventions do not translate well into everyday activities and stroke patients continue to find it difficult remembering integration of upper limb movements into daily activities...
October 21, 2016: Trials
https://www.readbyqxmd.com/read/27763945/paracentral-acute-middle-maculopathy-associated-with-retinal-artery-occlusion-after-cosmetic-filler-injection
#18
Jayanth Sridhar, Abtin Shahlaee, Wen-Shi Shieh, Ehsan Rahimy
PURPOSE: To report a single case of paracentral acute middle maculopathy in association with retinal artery occlusion in the setting of ipsilateral facial cosmetic filler injection. METHODS: Case report. PATIENT: A 35-year-old woman presenting with sudden vision loss to finger count vision immediately after left nasal fat pad cosmetic filler injection. RESULTS: Dilated funduscopic examination revealed a swollen optic disc with multiple branch arterial occlusions with visible embolic material...
October 19, 2016: Retinal Cases & Brief Reports
https://www.readbyqxmd.com/read/27759710/optical-coherence-tomography-angiography-shows-inner-choroidal-ischemia-in-acute-posterior-multifocal-placoid-pigment-epitheliopathy
#19
Rosa Dolz-Marco, David Sarraf, Vincent Giovinazzo, K Bailey Freund
PURPOSE: To describe multimodal imaging findings of an evolving case of acute posterior multifocal placoid pigment epitheliopathy occurring in a young healthy male. METHODS: Case report of a patient with acute posterior multifocal placoid pigment epitheliopathy including comprehensive systemic and ocular examinations. Ultra-widefield autofluorescence, fluorescein angiography, indocyanine green angiography, and serial optical coherence tomography angiography were performed...
October 18, 2016: Retinal Cases & Brief Reports
https://www.readbyqxmd.com/read/27759582/microvascular-flow-abnormalities-associated-with-retinal-vasculitis-a-potential-of-mechanism-of-retinal-injury
#20
Richard F Spaide
PURPOSE: To investigate the structural optical coherence tomography and related microvascular flow characteristics in eyes with retinal vasculitis. METHODS: Regions involved with perivascular infiltration in eyes with retinal vasculitis, but no evidence of large vessel occlusion were evaluated with optical coherence tomography (OCT), OCT angiography, and fluorescein angiography. RESULTS: Ten eyes of 5 patients with a variety of etiologies of retinal vasculitis were evaluated...
October 18, 2016: Retina
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