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Glaucoma

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https://www.readbyqxmd.com/read/29786643/controlled-deactivation-cb1-receptor-ligands-as-a-novel-strategy-to-lower-intraocular-pressure
#1
Sally Miller, Shashank Kulkarni, Alex Ciesielski, Spyros P Nikas, Ken Mackie, Alexandros Makriyannis, Alex Straiker
Nearly half a century has passed since the demonstration that cannabis and its chief psychoactive component Δ⁸-THC lowers intraocular pressure (IOP). Elevated IOP remains the chief hallmark and therapeutic target for glaucoma, a condition that places millions at risk of blindness. It is likely that Δ⁸-THC exerts much of its IOP-lowering effects via the activation of CB1 cannabinoid receptors. However, the initial promise of CB1 as a target for treating glaucoma has not thus far translated into a credible therapeutic strategy...
May 22, 2018: Pharmaceuticals
https://www.readbyqxmd.com/read/29786005/a-microinvasive-technique-for-management-of-corneal-edema-secondary-to-glaucoma-drainage-device-tube-corneal-touch
#2
Harsh Kumar, Avnindra Gupta, Viney Gupta
We present a case of tube endothelial touch where a suture technique for repositioning of the Ahmed glaucoma valve was performed. Advantage of this technique is that it is minimally invasive and anterior chamber stability is maintained during the procedure.
June 2018: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/29785092/patient-satisfaction-with-care-in-an-urban-tertiary-referral-academic-glaucoma-clinic-in-the-us
#3
Kristen M Peterson, Carrie E Huisingh, Christopher Girkin, Cynthia Owsley, Lindsay A Rhodes
Background: The purpose of this study was to determine the factors associated with glaucoma patients' satisfaction with their medical care by fellowship-trained glaucoma specialists in an urban tertiary referral clinic in the US. Methods: A total of 110 established patients aged ≥60 years with a diagnosis of either primary open angle glaucoma, glaucoma suspect, or ocular hypertension monitored by an ophthalmologist with fellowship training in glaucoma were enrolled at an academic, urban, tertiary referral eye clinic...
2018: Patient Preference and Adherence
https://www.readbyqxmd.com/read/29785010/genome-wide-analyses-identify-68-new-loci-associated-with-intraocular-pressure-and-improve-risk-prediction-for-primary-open-angle-glaucoma
#4
Anthony P Khawaja, Jessica N Cooke Bailey, Nicholas J Wareham, Robert A Scott, Mark Simcoe, Robert P Igo, Yeunjoo E Song, Robert Wojciechowski, Ching-Yu Cheng, Peng T Khaw, Louis R Pasquale, Jonathan L Haines, Paul J Foster, Janey L Wiggs, Chris J Hammond, Pirro G Hysi
Glaucoma is the leading cause of irreversible blindness globally 1 . Despite its gravity, the disease is frequently undiagnosed in the community 2 . Raised intraocular pressure (IOP) is the most important risk factor for primary open-angle glaucoma (POAG)3,4 . Here we present a meta-analysis of 139,555 European participants, which identified 112 genomic loci associated with IOP, 68 of which are novel. These loci suggest a strong role for angiopoietin-receptor tyrosine kinase signaling, lipid metabolism, mitochondrial function and developmental processes underlying risk for elevated IOP...
May 21, 2018: Nature Genetics
https://www.readbyqxmd.com/read/29784167/outcomes-of-boston-keratoprosthesis-type-1-reimplantation-multicentre-study-results
#5
Jay C Wang, Christopher J Rudnisky, Michael W Belin, Joseph B Ciolino
OBJECTIVE: To investigate the visual and anatomical outcomes of Boston keratoprosthesis (Kpro) type 1 reimplantation. DESIGN: Subgroup analysis of multicentre prospective cohort study. PARTICIPANTS: Of 303 eyes that underwent Kpro implantation between January 2003 and July 2008 by 1 of 19 surgeons at 18 medical centres, 13 eyes of 13 patients who underwent reimplantation of Boston Kpro type 1 were compared with 13 eyes of 13 diagnosis-matched patients who underwent initial implantation...
June 2018: Canadian Journal of Ophthalmology. Journal Canadien D'ophtalmologie
https://www.readbyqxmd.com/read/29784161/surgeon-perspectives-on-learning-ab-interno-gelatin-microstent-implantation
#6
Andrei-Alexandru Szigiato, Simrenjeet Sandhu, Gokulan Ratnarajan, Michael W Dorey, Iqbal Ike K Ahmed
OBJECTIVE: To evaluate and compare the surgeon's learning experience with an ab-interno gelatin microstent (XEN-45, Allergan) to other glaucoma surgeries. DESIGN: Cross-sectional survey study. METHODS: All surgeons in Canada who used the gelatin microstent were identified and given an anonymous online survey (FluidSurveys, Survey Monkey) designed to evaluate key factors associated with the device, including prior surgical experience, patient selection criteria, analysis of each surgical step, and postoperative care...
June 2018: Canadian Journal of Ophthalmology. Journal Canadien D'ophtalmologie
https://www.readbyqxmd.com/read/29784160/systemic-medication-usage-in-glaucoma-patients
#7
Tenley Bower, Deborah Anne Samek, Ahmed Mohammed, Ali Mohammed, Paul Kasner, David Camoriano, Oscar Kasner
OBJECTIVE: To study the prevalence of the systemic use of some common classes of medications by glaucoma patients and their relationship to the prevalence and severity of chronic open-angle glaucoma (COAG) and primary-angle closure glaucoma (PACG). DESIGN: Observational prospective single-centre cross-sectional study. METHODS: Glaucoma patients or their pharmacist provided an updated list of all systemic medications that they presently use...
June 2018: Canadian Journal of Ophthalmology. Journal Canadien D'ophtalmologie
https://www.readbyqxmd.com/read/29784159/changes-in-corneal-biomechanical-properties-after-24-hours-of-continuous-intraocular-pressure-monitoring-using-a-contact-lens-sensor
#8
Laura Morales-Fernandez, Javier Garcia-Bella, Jose M Martinez-de-la-Casa, Rubén Sanchez-Jean, Federico Saenz-Frances, Pedro Arriola-Villalobos, Lucia Perucho, Enrique Santos-Bueso, Julian Garcia-Feijoo
OBJECTIVE: This study was designed to assess changes in corneal topography and biomechanics after intraocular pressure (IOP) monitoring using the Triggerfish contact lens sensor (CLS). METHODS: For this prospective study, 30 eyes of 30 subjects: 14 healthy subjects (G1) and 6 glaucoma patients (G2), were recruited for 24 hours of continuous IOP monitoring using the CLS. The following measurements were taken before CLS fitting and after lens removal: maximum keratometry (Kmax), mean keratometry (MK), and corneal astigmatism (Cyl) measured through Pentacam corneal topography, and the corneal biomechanical variables corneal hysteresis (CH) and corneal resistance factor (CRF) measured with the Ocular Response Analyzer (ORA)...
June 2018: Canadian Journal of Ophthalmology. Journal Canadien D'ophtalmologie
https://www.readbyqxmd.com/read/29782299/drug-induced-subacute-cutaneous-lupus-erythematosus-caused-by-a-topical-beta-blocker-timolol
#9
Monika Bilewicz-Stebel, Bartosz Miziołek, Beata Bergler-Czop, Anna Stańkowska
Drug-induced lupus erythematosus (DI-LE) is an autoimmune condition secondary to a recent pharmacological intervention. There are no established specific diagnostic criteria for DI-LE, and the disease is recognized based on the medical history of the patient. Typically, the onset is closely related to a recent drug exposure, and the disease terminates after discontinuation of the inducing factor. The most frequent form of DI-LE is drug-induced subacute cutaneous lupus erythematosus (DI-SCLE). There has been an increasing number of drugs which are suspected to provoke SCLE lesions...
April 2018: Acta Dermatovenerologica Croatica: ADC
https://www.readbyqxmd.com/read/29781925/osteo-odonto-keratoprosthesis-in-severe-thermal-and-chemical-injuries
#10
Alfonso Vasquez-Perez, Mehran Zarei-Ghanavati, Venkata Avadhanam, Christopher Liu
PURPOSE: To report the results of osteo-odonto-keratoprosthesis (OOKP) surgery in patients who sustained severe chemical and thermal injuries. METHODS: This is a noncomparative retrospective case series of 14 patients who underwent OOKP surgery between 2001 and 2016 at the Sussex Eye Hospital, Brighton, UK, because of severe chemical and thermal injuries RESULTS:: OOKP surgery was performed in 14 eyes of 14 patients. Eight patients (57%) sustained thermal injuries and 6 patients (43%) chemical injuries...
May 16, 2018: Cornea
https://www.readbyqxmd.com/read/29781835/deep-learning-classifier-with-an-ultra-wide-field-scanning-laser-ophthalmoscope-detects-glaucoma-visual-field-severity
#11
Masumoto Hiroki, Hitoshi Tabuchi, Shunsuke Nakakura, Ishitobi Naofumi, Masayuki Miki, Enno Hiroki
PURPOSE: To evaluate the accuracy of detecting glaucoma visual field defect severity using deep-learning classifier (DL) with an ultra-wide-field scanning laser ophthalmoscope. METHODS: One eye of 982 open angle glaucoma (OAG) patients and 417 healthy eyes were enrolled. We categorized glaucoma patients into three groups according to the glaucoma visual field damage (Humphrey Field Analyzer 24-2 program) (early; -6▒dB (mean deviation) or better, moderate; between -6 and -12▒dB, and severe as mean deviation of -12▒dB or worse)...
May 17, 2018: Journal of Glaucoma
https://www.readbyqxmd.com/read/29781834/ocular-findings-in-exfoliation-syndrome
#12
Robert Ritch
Exfoliation syndrome (XFS) is characterized by numerous ocular manifestations, the most important of these being glaucoma and cataract. Its ocular manifestations affect all of the structures of the anterior segment as well as conjunctiva and orbital structures. Exfoliation material is seen most prominently as characteristic white deposits on the anterior surface of the lens and the pupillary border of the iris. Both open-angle and angle-closure glaucoma are intimately associated with XFS. Other findings include zonular disruption, iris sphincter fibrosis, keratopathy, ocular surface disease, and retinal vein occlusion...
May 17, 2018: Journal of Glaucoma
https://www.readbyqxmd.com/read/29781833/influence-of-socio-demographic-factors-on-disease-characteristics-and-vision-related-quality-of-life-in-primary-open-angle-glaucoma-patients-the-italian-primary-open-angle-glaucoma-study-ipoags
#13
Ivano Riva, Lorenzo Legramandi, Andreas Katsanos, Francesco Oddone, Eliana Rulli, Gloria Roberti, Luciano Quaranta
PURPOSE: To evaluate the potential association between socio-demographic factors with clinical characteristics, vision-related quality of life and glaucoma-related symptoms scores in a large cohort of primary open angle glaucoma (POAG) patients. MATERIAL AND METHODS: Multicenter, cross-sectional study involving academic and non-academic centers. Previously diagnosed POAG patients aged >18 years were enrolled. At baseline, information on demographic characteristics, social, medical and ocular history, clinical presentation and treatments was collected...
May 17, 2018: Journal of Glaucoma
https://www.readbyqxmd.com/read/29781739/preimplantation-genetic-diagnosis-as-a-strategy-to-prevent-having-a-child-born-with-an-heritable-eye-disease
#14
Claudia Yahalom, Michal Macarov, Galit Lazer-Derbeko, Gheona Altarescu, Tal Imbar, Jordana H Hyman, Talia Eldar-Geva, Anat Blumenfeld
BACKGROUND: In developed countries, genetically inherited eye diseases are responsible for a high percentage of childhood visual impairment. We aim to report our experience using preimplantation genetic diagnostics (PGD) in order to avoid transmitting a genetic form of eye disease associated with childhood visual impairment and ocular cancer. MATERIAL AND METHODS: Retrospective case series of women who underwent in vitro fertilization (IVF) and PGD due to a familial history of inherited eye disease and/or ocular cancer, in order to avoid having a child affected with the known familial disease...
May 21, 2018: Ophthalmic Genetics
https://www.readbyqxmd.com/read/29781319/assessing-the-role-of-ranibizumab-in-improving-the-outcome-of-glaucoma-filtering-surgery-and-neovascular-glaucoma
#15
Andreas Katsanos, Kostantina Gorgoli, Dimitrios G Mikropoulos, Esther Arranz-Marquez, Georgios P Athanasopoulos, Miguel A Teus, Anastasios G P Konstas
Ranibizumab was the first anti-vascular endothelial growth factor (VEGF) agent approved for the treatment of neovascular age-related macular degeneration. The use of ranibizumab and other anti-VEGF medications in recent years has revolutionized the treatment of several sight-threatening retinal disorders. Emerging evidence has demonstrated that anti-VEGF treatment can offer advantages in the management of other ocular conditions where VEGFs play a key role: ocular scarring following glaucoma filtering surgery and neovascular glaucoma (NVG)...
May 19, 2018: Expert Opinion on Biological Therapy
https://www.readbyqxmd.com/read/29780946/bilateral-acute-depigmentation-of-the-iris-in-two-siblings-simultaneously
#16
Rana Amin, Amena Nabih, Noha Khater
Purpose: To report the first simultaneous onset of bilateral acute depigmentation of the iris (BADI) in two siblings. Observations: Two sisters presented with bilateral ocular pain, redness and light sensitivity. Examination revealed bilateral circulating pigment in the anterior chamber with pigment dusting on backs of the corneas, patchy iris depigmentation and heavy pigment deposition in the angle. Both patients had recently suffered from upper respiratory tract infections...
June 2018: American Journal of Ophthalmology Case Reports
https://www.readbyqxmd.com/read/29780936/clinical-and-pathological-correlation-of-cotton-wool-spots-in-secondary-angle-closure-glaucoma
#17
Anand Bhatt, Christine Nguyen, Sameh Mosaed, Don Minckler
Purpose: Cotton Wool Spots (CWS) are a commonly described retinal finding in the posterior segment associated with an extensive number of systemic diseases. The appearance of a CWS in the setting of glaucoma has rarely been reported and has not been correlated with pathology to localized loss of the nerve fiber layer previously. In this case report, we augment a previous report of an 18 year old female with a diagnosis of low grade ciliary body melanoma. This patient experienced eventual mechanical angle closure with a CWS appearing in the posterior pole in the setting of acute elevation of intraocular pressure (IOP)...
June 2018: American Journal of Ophthalmology Case Reports
https://www.readbyqxmd.com/read/29780928/spontaneous-regression-of-epithelial-downgrowth-from-clear-corneal-phacoemulsification-wound
#18
Ryan M Jaber, Mark Harrod, Jeffrey M Goshe
Purpose: To report a case of spontaneous regression of optical coherence tomography (OCT) and confocal microscopy-supported epithelial downgrowth associated with clear corneal phacoemulsification wound. Observations: A 66-year-old Caucasian male presented two years after phacoemulsification in the left eye with an enlarging cornea endothelial lesion in that eye. His early post-operative course had been complicated by corneal edema and iris transillumination defects...
June 2018: American Journal of Ophthalmology Case Reports
https://www.readbyqxmd.com/read/29780917/advanced-pigment-dispersion-glaucoma-secondary-to-phakic-intraocular-collamer-lens-implant
#19
Clara Ye, Cajal K Patel, Anna C Momont, Yao Liu
Purpose: We report a case of pigment dispersion glaucoma secondary to uncomplicated phakic intraocular collamer lens (ICL) (Visian ICL™, Staar Inc., Monrovia, CA) implant that resulted in advanced visual field loss. Observations: A 50-year-old man presented for routine follow-up status post bilateral phakic intraocular collamer lens (ICL) placement 8 years earlier. He was incidentally found to have a decline in visual acuity from an anterior subcapsular cataract and elevated intraocular pressure (IOP) in the left eye...
June 2018: American Journal of Ophthalmology Case Reports
https://www.readbyqxmd.com/read/29780916/visual-acuity-of-20-32-13-5-years-after-a-retinal-pigment-epithelium-and-choroid-graft-transplantation
#20
Elsbeth J T van Zeeburg, Kristel J M Maaijwee, Jan C van Meurs
Purpose: To present the 13.5-year-survival of an autologous retinal pigment epithelium (RPE) and choroid graft transplantation with good visual acuity results. Observations: A 72-year old patient presented with a 5-weeks-old visual acuity deterioration to excentric finger counting at half a meter. Fundoscopy showed a fibrotic macular scar, a large subretinal hemorrhage, partly recent, combined with intraretinal fluid, blood, and hard exudates. RPE-choroid graft surgery was performed, and visual acuity improved to 20/32, and maintained up until 13...
June 2018: American Journal of Ophthalmology Case Reports
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