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https://www.readbyqxmd.com/read/29782814/primary-assessment-of-the-patient-with-orbital-fractures-should-include-pupillary-response-and-visual-acuity-changes-to-detect-occult-major-ocular-injuries
#1
Jeffrey Chow, Krishnan Parthasarathi, Patrick Mehanna, Eline Whist
PURPOSE: Sight-threatening injuries associated with orbital fractures are of major concern to maxillofacial surgeons whom are often the first asked to assess these patients. Eliciting signs and symptoms that are predictive of these injuries would allow expedited ophthalmic consultation and appropriate management. We hypothesized that abnormal pupillary response is predictive of major ocular injuries. PATIENTS AND METHODS: A retrospective cohort study of patients with facial fractures was instituted with review of all associated ophthalmic injuries...
May 1, 2018: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/29781835/deep-learning-classifier-with-an-ultra-wide-field-scanning-laser-ophthalmoscope-detects-glaucoma-visual-field-severity
#2
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/29780918/bariatric-surgery-and-its-impact-on-pseudotumor-cerebri-a-case-report
#3
Norberto Mancera, Michel M Murr, Mitchell Drucker
Purpose: Pseudotumor cerebri is a debilitating condition that causes severe headaches and progressive visual field loss. In this report, we present a patient with Class III obesity, with pseudotumor cerebri who failed medical management and attempted weight loss via diet and exercise. Observations: After undergoing bariatric surgery, the patient had significant weight loss and improvement of visual field defects. Conclusion and importance: These results suggest that bariatric surgery may be an effective option for patients with rapidly progressing visual loss due to pseudotumor cerebri...
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
#4
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/29777044/the-impact-of-sign-glaucoma-guidelines-on-false-positive-referrals-from-community-optometrists-in-central-scotland
#5
Samantha Sii, Ahmad Nasser, Cheng Yi Loo, Catherine Croghan, Alan Rotchford, Pankaj Kumar Agarwal
BACKGROUND: Since the introduction of National Institute for Health and Care Excellence glaucoma guidelines 2009, the number of referrals from community optometrists to hospital eye services has increased across the UK, resulting in increase in first visit discharge rates (FVDRs). AIM: To assess the impact of Scottish Intercollegiate Guidelines Network (SIGN) 144 on quality of referrals from community optometrists. METHODOLOGY: A retrospective study of patient records who attended as new adult glaucoma referrals to clinics in Princess Alexandra Eye Pavilion, Edinburgh, and in Greater Glasgow and Clyde, was carried out across October-November 2014 (group 1) and September-October 2016 (group 2), before and after the introduction of SIGN 144...
May 18, 2018: British Journal of Ophthalmology
https://www.readbyqxmd.com/read/29776133/spatiotemporal-dynamics-of-the-covariant-lyapunov-vectors-of-chaotic-convection
#6
M Xu, M R Paul
We explore the spatiotemporal dynamics of the spectrum of covariant Lyapunov vectors for chaotic Rayleigh-Bénard convection. We use the inverse participation ratio to quantify the amount of spatial localization of the covariant Lyapunov vectors. The covariant Lyapunov vectors are found to be spatially localized at times when the instantaneous covariant Lyapunov exponents are large. The spatial localization of the Lyapunov vectors often occurs near defect structures in the fluid flow field. There is an overall trend of decreasing spatial localization of the Lyapunov vectors with increasing index of the vector...
March 2018: Physical Review. E
https://www.readbyqxmd.com/read/29775031/-neurofeedback-therapy-in-the-treatment-of-tinnitus
#7
REVIEW
Z Q Zhao, G X Lei, Y L Li, D Zhang, W D Shen, S M Yang, Y H Qiao
Neurofeedback therapy is a fast-growing field of tinnitus treatment, which is a new type of biofeedback therapy. In the past, the "muscle tone" and "blood flow" were used as feedback signals in biofeedback therapy to treat tinnitus, however there was no long-term follow-up report. Instead, neurofeedback therapy utilizes EEG (electroencephalogram) as the feedback signal, which is also called EEG biofeedback therapy. At present, most treatments of tinnitus only record subjective measures of patients as evaluation indicators, whereas neurofeedback therapy is more convincing for using comprehensive evaluation including changes of brain wave as objective indicators and subjective measures of patients...
February 2018: Journal of Clinical Otorhinolaryngology, Head, and Neck Surgery
https://www.readbyqxmd.com/read/29773842/systemic-vascular-risk-factors-for-multiple-retinal-nerve-fiber-layer-defects
#8
Kyoung In Jung, Seon Joo Kim, Chan Kee Park
Multiple retinal nerve fiber layer (RNFL) defects develop uncommonly, even though glaucomatous RNFL loss is typically observed as one RNFL defect in each quadrant. We investigated the risk factors associated with multiple RNFL defects to increase our understanding of the nature and pathogenesis of various RNFL defect patterns. Data from subjects with multiple RNFL defects (28 patients) and glaucoma patients without multiple RNFL defects (194 patients) were analyzed. The term "multiple RNFL defects" refers to three or more isolated defects separated by a comparatively normal area...
May 17, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29750944/ellipsoid-zone-change-according-to-glaucoma-stage-advancement
#9
Ahnul Ha, Young Kook Kim, Jin Wook Jeoung, Ki Ho Park
PURPOSE: Retinal photoreceptor ellipsoid zone (EZ) intensity comparison between normal eyes and those with different stages of glaucoma. DESIGN: Retrospective cross-sectional study METHODS: The study included 37 normal, 38 pre-perimetric, 39 mild-to-moderate (visual field [VF] mean deviation [MD]: -7.7±2.0 dB), and 36 severe glaucoma eyes (VF MD: -17.8±3.2 dB). The subjects underwent high-resolution horizontal and vertical-line scans through the fovea by spectral-domain optical coherence tomography [SD-OCT] (Spectralis HRA+OCT; Heidelberg)...
May 8, 2018: American Journal of Ophthalmology
https://www.readbyqxmd.com/read/29750715/visual-field-tests-for-glaucoma-patients-with-initial-macular-damage-comparison-between-frequency-doubling-technology-and-standard-automated-perimetry-using-24-2-or-10-2-visual-fields
#10
Hae-Young Lopilly Park, Jiyoung Lee, Chan Kee Park
PURPOSE: To compare standard automated perimetry (SAP) and frequency-doubling technology (FDT) perimetry for detecting macular damage in glaucoma. METHODS: One-hundred-twelve glaucomatous eyes with localized retinal nerve fiber layer (RNFL) defects on red-free photographs and corresponding macular ganglion cell/inner plexiform layer (mGC/IPL) thinning on the deviation map of macular optical coherence tomography (OCT), and thirty-five healthy eyes were enrolled in the study...
May 10, 2018: Journal of Glaucoma
https://www.readbyqxmd.com/read/29750122/analysis-of-visual-field-defects-obtained-with-semiautomated-kinetic-perimetry-in-patients-with-leber-hereditary-optic-neuropathy
#11
Katarzyna Nowomiejska, Agnieszka Kiszka, Edyta Koman-Wierdak, Katarzyna Tonska, Ryszard Maciejewski, Anselm G Jünemann, Robert Rejdak
Purpose: To analyse visual field (VF) defects obtained using semiautomated kinetic perimetry (SKP) in patients suffering from Leber hereditary optic neuropathy (LHON). Methods: Twenty-two eyes of eleven consecutive LHON male patients with confirmed mitochondrial 11778G>A DNA mutation were prospectively examined with the V4e stimulus of SKP in both eyes. The mean time after the onset of LHON was one year. The area of obtained isopters was measured in square degrees (deg2 )...
2018: Journal of Ophthalmology
https://www.readbyqxmd.com/read/29744359/metamorphopsia-score-and-central-visual-field-outcomes-in-diabetic-cystoid-macular-edema
#12
Agnieszka Kalinowska, Katarzyna Nowomiejska, Agnieszka Brzozowska, Ryszard Maciejewski, Robert Rejdak
Aim: To detect abnormality of the visual function in naïve patients with cystoid diabetic macular edema (DME) using M-charts, Amsler test, and white on white (W/W) and blue on yellow (B/Y) perimetry. Methods: There were 64 eyes included in the study: 30 eyes with DME, 22 eyes with diabetes without DME, and 12 eyes of normal subjects. Conventional W/W perimetry and B/Y perimetry were performed within the central 10° of the visual field. To assess metamorphopsia, Amsler test and M-charts were used...
2018: BioMed Research International
https://www.readbyqxmd.com/read/29739629/phenotypic-characteristics-of-a-french-cohort-of-patients-with-x-linked-retinoschisis
#13
Raphaëlle Orès, Saddek Mohand-Said, Claire-Marie Dhaenens, Aline Antonio, Christina Zeitz, Edouard Augstburger, Camille Andrieu, José-Alain Sahel, Isabelle Audo
PURPOSE: To analyze the retinal structure in patients with X-linked retinoschisis (XLRS) using spectral-domain OCT and to correlate the morphologic findings with visual acuity, electroretinographic results, and patient age. DESIGN: Retrospective, observational study. PARTICIPANTS: Data from 52 consecutive male patients with molecularly confirmed XLRS were collected retrospectively. METHODS: Complete clinical evaluation included best-corrected visual acuity, full-field electroretinography, fundus photography, spectral-domain OCT, and fundus autofluorescence...
May 5, 2018: Ophthalmology
https://www.readbyqxmd.com/read/29721351/resolution-of-symptomatic-secondary-empty-sella-syndrome-following-lumbar-peritoneal-shunt
#14
Waseem Mehmood Nizamani, Mubbashira Siddiqui, Sehrish Nizar Ali Momin, Muhammad Waqas, Rashid Jooma
Background: Post-surgical empty sella is related to the removal of pituitary tumors either from the transcranial or transphenoidal route, rendering diaphragma sellae incompetent at the end of the procedure. This subsequently leads to herniation of the third ventricle and optic apparatus into the empty sella. Studies have shown that in 50% of the cases, individuals with primary and secondary empty sella syndrome have developed defects in the visual fields. Benign increased intracranial pressure, cerebrospinal rhinorrhea, papilledema, and abnormalities affecting visual acuity may also occur as a result of empty sella...
2018: Surgical Neurology International
https://www.readbyqxmd.com/read/29708976/factors-associated-with-visual-field-defects-of-optic-disc-drusen
#15
Kyoung Min Lee, Se Joon Woo, Jeong-Min Hwang
PURPOSE: To investigate the prevalence and risk factors for visual field defect in patients with optic disc drusen (ODD). METHODS: We assessed the visual field status of patients with ODD whose diagnosis were confirmed by spectral-domain optical coherence tomography (SD-OCT). Visual field defects were classified as normal, enlarged blind spot, or other defects. ODD were classified into either type 1 (without hyperreflective border and heterogenic internal reflectance) or type 2 (with hyperreflective border and lower internal reflectance)...
2018: PloS One
https://www.readbyqxmd.com/read/29706620/the-effect-of-trabeculectomy-surgery-on-the-central-visual-field-in-patients-with-glaucoma-using-microperimetry-and-optical-coherence-tomography
#16
Gokulan Ratnarajan, Jasleen K Jolly, Imran H Yusuf, John F Salmon
PURPOSE: To determine the functional and structural effects of trabeculectomy surgery on patients with advanced glaucoma and central visual field defects in the early post-operative period. METHODS: Thirty consecutive adult subjects with advanced glaucoma requiring trabeculectomy surgery and an established visual field defect within 10° of fixation underwent microperimetry (MAIA MP-1, CenterVue, Padova, Italy) and optic disc optical coherence tomography (OCT) imaging (Spectralis, Heidelberg Engineering, Germany) pre-operatively, and 1 month and 3 months following trabeculectomy surgery...
April 30, 2018: Eye
https://www.readbyqxmd.com/read/29706619/microperimetry-and-optical-coherence-tomography-imaging-in-the-fellow-eye-of-patients-with-unilateral-focal-ischaemic-glaucoma
#17
Imran H Yusuf, Jasleen K Jolly, Gokulan Ratnarajan, John F Salmon
PURPOSE: To determine whether microperimetry or optical coherence tomography (OCT) imaging can detect early disease in the fellow eye of patients with unilateral focal ischaemic glaucoma. METHODS: Thirty-seven consecutive adult patients with unilateral focal ischaemic glaucoma with a unilateral split-fixation visual field defect on standard automated perimetry (SAP) with normal SAP in the fellow eye were selected. All patients underwent microperimetry (MAIA, CenterVue, Italy) of the central 10 degrees and OCT imaging (Spectralis, Heidelberg Engineering, Germany) of the retinal nerve fibre layer of both eyes...
April 30, 2018: Eye
https://www.readbyqxmd.com/read/29705174/a-sticky-situation
#18
Christina Y Weng, Karima S Khimani, Rod Foroozan, Sidney M Gospe, M Tariq Bhatti
An 81-year-old man with bilateral progressively blurry vision and optic disc swelling was referred for evaluation. Examination and ancillary testing confirmed a diagnosis of bilateral vitreopapillary traction (VPT) accompanied by unilateral tractional retinoschisis in the right eye. Pars plana vitrectomy was performed to release the traction in both eyes. Visual acuity improved in the right eye and stabilized in the left eye. Retinoschisis in the right eye resolved. The visual field improved in both eyes, although the left eye demonstrated a persistent hemifield defect likely attributable to a prior optic neuropathy...
April 26, 2018: Survey of Ophthalmology
https://www.readbyqxmd.com/read/29705057/patterns-of-progressive-ganglion-cell-inner-plexiform-layer-thinning-in-glaucoma-detected-by-oct
#19
Joong Won Shin, Kyung Rim Sung, Sun-Won Park
PURPOSE: To investigate the spatial characteristics and patterns of progressive macular ganglion cell-inner plexiform layer (GCIPL) thinning in glaucomatous eyes assessed by OCT Guided Progression Analysis (GPA). DESIGN: Longitudinal, retrospective, observational study. PARTICIPANTS: Two hundred ninety-two eyes of 192 patients with primary open-angle glaucoma with a mean follow-up of 6.0 years (range, 3.2-8.1 years) were included. METHODS: Macular GCIPL imaging and visual field (VF) examination were performed at 6-month intervals for 3 years or more...
April 25, 2018: Ophthalmology
https://www.readbyqxmd.com/read/29702978/optic-neuropathy-causing-vertical-unilateral-hemianopsia-after-pars-plana-vitrectomy-for-a-macular-hole-a-case-report
#20
Hirohiko Kawashima, Norihiro Nagai, Hajime Shinoda, Kazuo Tsubota, Yoko Ozawa
INTRODUCTION: Recent progress in medical technology has resulted in improved surgical outcomes of pars plana vitrectomy (PPV); with microincision systems, the incidence of procedure-related complications during surgery has been reduced. However, unpredictable visual field defects after PPV remain an unresolved issue. A few reports have shown that damage to the retinal neurofibers owing to dry-up during air/fluid exchange or retinal neurotoxicity of the dye used to visualize the internal limiting membrane (ILM), as well as unintentional removal of retinal neurofibers during ILM peeling, are responsible for such visual field disorders...
April 2018: Medicine (Baltimore)
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