1
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Fan Y, Zuo H, Chu P, Wu Q, Li L, Wang Y, Cao W, Zhou Y, Huang L, Li N. Analyses of eye movement parameters in children with anisometropic amblyopia. BMC Ophthalmol 2024; 24:278. [PMID: 38982388 PMCID: PMC11232305 DOI: 10.1186/s12886-024-03539-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2023] [Accepted: 06/24/2024] [Indexed: 07/11/2024] Open
Abstract
OBJECTIVE To investigate the characteristics of eye movement in children with anisometropic amblyopia, and to compare those characteristics with eye movement in a control group. METHODS 31 children in the anisometropic amblyopia group (31 amblyopic eyes in group A, 31 contralateral eyes in group B) and 24 children in the control group (48 eyes in group C). Group A was subdivided into groups Aa (severe amblyopia) and Ab (mild-moderate amblyopia). The overall age range was 6-12 years (mean, 7.83 ± 1.79 years). All children underwent ophthalmic examinations; eye movement parameters including saccade latency and amplitude were evaluated using an Eyelink1000 eye tracker. Data Viewer and MATLAB software were used for data analysis. RESULTS Mean and maximum saccade latencies, as well as mean and maximum saccade amplitudes, were significantly greater in group A than in groups B and C before and after treatment (P < 0.05). Mean and maximum saccade latencies were significantly different among groups Aa, Ab, and C (P < 0.05). Pupil trajectories in two detection modes suggested that binocular fixation was better than monocular fixation. CONCLUSIONS Eye movement parameters significantly differed between contralateral normal eyes and control eyes. Clinical evaluation of children with anisometropic amblyopia should not focus only on static visual acuity, but also on the assessment of eye movement.
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Affiliation(s)
- Yunwei Fan
- Department of Ophthalmology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, 100045, China
| | - Huaxin Zuo
- Department of Ophthalmology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, 100045, China
| | - Ping Chu
- Beijing Key Laboratory for Pediatric Diseases of Otolaryngology, Head and Neck Surgery, Beijing Children's Hospital, Beijing Pediatric Research Institute, Capital Medical University, National Center for Children's Health, Beijing, 100045, China
| | - Qian Wu
- Department of Ophthalmology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, 100045, China
| | - Li Li
- Department of Ophthalmology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, 100045, China
| | - Yuan Wang
- Department of Ophthalmology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, 100045, China
| | - Wenhong Cao
- Department of Ophthalmology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, 100045, China
| | - Yunyu Zhou
- Department of Ophthalmology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, 100045, China
| | - Lijuan Huang
- The second affiliated hospital of Fujian medical university, Fujian, 362000, Zhejiang, China
| | - Ningdong Li
- Department of Ophthalmology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, 100045, China.
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2
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Reich SG. Subacute tremor and ataxia: Diligence in pursuit of a diagnosis: Expert commentary. Parkinsonism Relat Disord 2022; 104:132-133. [PMID: 36323593 DOI: 10.1016/j.parkreldis.2022.10.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Revised: 10/18/2022] [Accepted: 10/19/2022] [Indexed: 11/05/2022]
Affiliation(s)
- Stephen G Reich
- The University of Maryland School of Medicine, 110 S. Paca Street, 3rd Floor Neurology, Baltimore, MD, 21201, USA.
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3
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Wade CA, Toupin DN, Darpel K, Jones K, Lightner D. Downbeat Nystagmus in a 7-Year-Old Girl With Epstein-Barr Virus-Associated Meningitis and Cerebellitis. Child Neurol Open 2021; 8:2329048X211000463. [PMID: 33796603 PMCID: PMC7970232 DOI: 10.1177/2329048x211000463] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Revised: 01/07/2021] [Accepted: 02/01/2021] [Indexed: 11/16/2022] Open
Abstract
Downbeat nystagmus is a type of jerk nystagmus that may be seen in patients with
lesions affecting the vestibulocerebellum. This is a case of a 7-year-old girl
presenting with a history of fever, headache, and episodic vertigo with downbeat
nystagmus. The diagnosis of Epstein-Barr virus meningitis with acute
cerebellitis was made by contrast magnetic resonance imaging, cerebrospinal
fluid analysis, and serum Epstein-Barr virus titers. Contrast magnetic resonance
imaging demonstrated enhancement of the meninges and inferior cerebellar folia,
correlating with the neuroophthalmological symptom of downbeat nystagmus.
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Affiliation(s)
| | - David Neil Toupin
- Department of Child Neurology, University of Kentucky, Lexington, KY, USA
| | - Kyle Darpel
- Department of Neurology, University of Kentucky, Lexington, KY, USA
| | - Kimberly Jones
- Department of Child Neurology, University of Kentucky, Lexington, KY, USA
| | - Donita Lightner
- Department of Child Neurology and Pediatric Oncology, University of Kentucky, Lexington, KY, USA
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4
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Imas DM, Duncan EL, Tay ET. Vertical nystagmus as isolated presentation in a patient with new diagnosis of multiple sclerosis. Am J Emerg Med 2020; 39:259.e1-259.e3. [PMID: 32798013 DOI: 10.1016/j.ajem.2020.07.037] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Accepted: 07/15/2020] [Indexed: 12/20/2022] Open
Abstract
Multiple sclerosis (MS) is a progressive demyelinating disease of the central nervous system with a wide array of symptoms. We present a healthy young woman who came to the Emergency Department with two days of isolated vertical nystagmus and was subsequently diagnosed with MS on imaging. Although bilateral vertical nystagmus is not a common presentation of MS, its presence should prompt inclusion of this disease process in the differential diagnosis.
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Affiliation(s)
- Daniel M Imas
- New York University School of Medicine, Department of Emergency Medicine, 462 First Ave, Suite A345, New York, NY 10016, United States of America.
| | - Ellen L Duncan
- New York University School of Medicine, Department of Emergency Medicine, 462 First Ave, Suite A345, New York, NY 10016, United States of America
| | - Ee Tein Tay
- New York University School of Medicine, Department of Emergency Medicine, 462 First Ave, Suite A345, New York, NY 10016, United States of America
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5
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Jiang X, Faber J, Giordano I, Machts J, Kindler C, Dudesek A, Speck O, Kamm C, Düzel E, Jessen F, Spottke A, Vielhaber S, Boecker H, Klockgether T, Scheef L. Characterization of Cerebellar Atrophy and Resting State Functional Connectivity Patterns in Sporadic Adult-Onset Ataxia of Unknown Etiology (SAOA). THE CEREBELLUM 2020; 18:873-881. [PMID: 31422550 DOI: 10.1007/s12311-019-01072-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Sporadic adult-onset ataxia of unknown etiology (SAOA) is a non-genetic neurodegenerative disorder of the cerebellum of unknown cause which manifests with progressive ataxia without severe autonomic failure. Although SAOA is associated with cerebellar degeneration, little is known about the specific cerebellar atrophy pattern in SAOA. Thirty-seven SAOA patients and 49 healthy controls (HCs) were included at two centers. We investigated the structural and functional characteristics of SAOA brains using voxel-based morphometry (VBM) and resting-state functional imaging (rs-fMRI). In order to examine the functional consequence of structural cerebellar alterations, the amplitude of low-frequency fluctuation (ALFF) and degree centrality (DC) were analyzed, and then assessed their relation with disease severity, disease duration, and age of onset within these regions. Group differences were investigated using two-sample t tests, controlling for age, gender, site, and the total intracranial volume. The VBM analysis revealed a significant, mostly bilateral reduction of local gray matter (GM) volume in lobules I-V, V, VI, IX, X, and vermis VIII a/b in SAOA patients, compared with HCs. The GM volume loss in these regions was significantly associated with disease severity, disease duration, and age of onset. The disease-related atrophy regions did not show any functional alternations compared with HCs but were functionally characterized by high ALFF and poor DC compared with intact cerebellar regions. Our data revealed volume reduction in SAOA in cerebellar regions that are known to be involved in motor and somatosensory processing, corresponding with the clinical phenotype of SAOA. Our data suggest that the atrophy occurs in those cerebellar regions which are characterized by high ALFF and poor DC. Further studies have to show if these findings are specific for SAOA, and if they can be used to predict disease progression.
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Affiliation(s)
- Xueyan Jiang
- Clinical Research, German Center for Neurodegenerative Diseases (DZNE), Bonn, Germany.
| | - J Faber
- Clinical Research, German Center for Neurodegenerative Diseases (DZNE), Bonn, Germany.,Department of Neurology, University Hospital Bonn, Bonn, Germany
| | - I Giordano
- Clinical Research, German Center for Neurodegenerative Diseases (DZNE), Bonn, Germany.,Department of Neurology, University Hospital Bonn, Bonn, Germany
| | - J Machts
- German Center for Neurodegenerative Diseases (DZNE), Magdeburg, Germany.,Department of Neurology, Otto-von-Guericke University, Magdeburg, Germany
| | - Ch Kindler
- Clinical Research, German Center for Neurodegenerative Diseases (DZNE), Bonn, Germany.,Department of Neurology, University Hospital Bonn, Bonn, Germany
| | - A Dudesek
- Department of Neurology, University of Rostock, Rostock, Germany
| | - O Speck
- German Center for Neurodegenerative Diseases (DZNE), Magdeburg, Germany
| | - Ch Kamm
- Department of Neurology, University of Rostock, Rostock, Germany
| | - E Düzel
- German Center for Neurodegenerative Diseases (DZNE), Magdeburg, Germany.,Department of Neurology, Otto-von-Guericke University, Magdeburg, Germany
| | - F Jessen
- Clinical Research, German Center for Neurodegenerative Diseases (DZNE), Bonn, Germany.,Department of Psychiatry, Medical Faculty, University of Cologne, Cologne, Germany
| | - A Spottke
- Clinical Research, German Center for Neurodegenerative Diseases (DZNE), Bonn, Germany.,Department of Neurology, University Hospital Bonn, Bonn, Germany
| | - St Vielhaber
- German Center for Neurodegenerative Diseases (DZNE), Magdeburg, Germany.,Department of Neurology, Otto-von-Guericke University, Magdeburg, Germany
| | - H Boecker
- Clinical Research, German Center for Neurodegenerative Diseases (DZNE), Bonn, Germany.,Department of Radiology, University of Bonn, Bonn, Germany
| | - T Klockgether
- Clinical Research, German Center for Neurodegenerative Diseases (DZNE), Bonn, Germany.,Department of Neurology, University Hospital Bonn, Bonn, Germany
| | - L Scheef
- Clinical Research, German Center for Neurodegenerative Diseases (DZNE), Bonn, Germany.,Department of Radiology, University of Bonn, Bonn, Germany
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6
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Bögli SY, Straumann D, Schuknecht B, Bertolini G, Tarnutzer AA. Cerebellar Rebound Nystagmus Explained as Gaze-Evoked Nystagmus Relative to an Eccentric Set Point: Implications for the Clinical Examination. THE CEREBELLUM 2020; 20:751-759. [PMID: 32076935 DOI: 10.1007/s12311-020-01118-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
A brain stem/cerebellar neural integrator enables stable eccentric gaze. Cerebellar loss-of-function can cause an inability to maintain gaze eccentrically (gaze-evoked nystagmus). Moreover, after returning gaze to straight ahead, the eyes may drift toward the prior eye position (rebound nystagmus). Typically, gaze-evoked nystagmus decays during continuously held eccentric gaze. We hypothesized this adaptive behavior to be prerequisite for rebound nystagmus and thus predicted a correlation between the velocity decay of gaze-evoked nystagmus and the initial velocity of rebound nystagmus. Using video-oculography, eye position was measured in 11 patients with cerebellar degeneration at nine horizontal gaze angles (15° nasal to 25° temporal) before (baseline), during, and after attempted eccentric gaze at ± 30° for 20 s. We determined the decrease of slow-phase velocity at eccentric gaze and the slow-phase velocity of the subsequent rebound nystagmus relative to the baseline. During sustained eccentric gaze, eye drift velocity of gaze-evoked nystagmus decreased by 2.40 ± 1.47°/s. Thereafter, a uniform change of initial eye drift velocity relative to the baseline (2.40 ± 1.35°/s) occurred at all gaze eccentricities. The velocity decrease during eccentric gaze and the subsequent uniform change of eye drift were highly correlated (R2 = 0.80, p < 0.001, slope = 1.09). Rebound nystagmus can be explained as gaze-evoked nystagmus relative to a set point (position with least eye drift) away from straight-ahead eye position. To improve detection at the bedside, we suggest testing rebound nystagmus not at straight-ahead eye position but at an eccentric position opposite of prior eccentric gaze (e.g., 10°), ideally using quantitative video-oculography to facilitate diagnosis of cerebellar loss-of-function.
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Affiliation(s)
- Stefan Yu Bögli
- Department of Neurology, University Hospital Zurich, Frauenklinikstrasse 26, CH-8091, Zurich, Switzerland
- University of Zurich, Zurich, Switzerland
- Clinical Neuroscience Center, Zurich, Switzerland
| | - Dominik Straumann
- Department of Neurology, University Hospital Zurich, Frauenklinikstrasse 26, CH-8091, Zurich, Switzerland
- University of Zurich, Zurich, Switzerland
- Clinical Neuroscience Center, Zurich, Switzerland
| | - Bernhard Schuknecht
- University of Zurich, Zurich, Switzerland
- Medizinisch Radiologisches Institut, Zurich, Switzerland
| | - Giovanni Bertolini
- Department of Neurology, University Hospital Zurich, Frauenklinikstrasse 26, CH-8091, Zurich, Switzerland
- University of Zurich, Zurich, Switzerland
- Clinical Neuroscience Center, Zurich, Switzerland
| | - Alexander A Tarnutzer
- Department of Neurology, University Hospital Zurich, Frauenklinikstrasse 26, CH-8091, Zurich, Switzerland.
- University of Zurich, Zurich, Switzerland.
- Clinical Neuroscience Center, Zurich, Switzerland.
- Neurology, Cantonal Hospital of Baden, Baden, Switzerland.
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7
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Affiliation(s)
- Olga Waln
- Department of Neurology, Houston Methodist Neurological Institute, Houston, TX, USA
| | - Joseph Jankovic
- Parkinson’s Disease Center and Movement Disorder Clinic, Department of Neurology, Baylor College of Medicine, Houston, TX, USA
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8
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Consensus Paper: Neurophysiological Assessments of Ataxias in Daily Practice. THE CEREBELLUM 2018; 17:628-653. [DOI: 10.1007/s12311-018-0937-2] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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9
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Eye movement abnormalities in AQP4-IgG positive neuromyelitis optica spectrum disorder. J Neurol Sci 2017; 384:91-95. [PMID: 29249386 DOI: 10.1016/j.jns.2017.11.033] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2017] [Revised: 11/03/2017] [Accepted: 11/23/2017] [Indexed: 11/20/2022]
Abstract
BACKGROUND AND PURPOSE Neuromyelitis optica spectrum disorder (NMOSD) has been recognized as a disease characterized by severe visual afferent impairment. Abnormal eye movements, as the other important neuro-ophthalmic manifestation of NMOSD, were commonly overlooked. The aim of our study was to describe the ocular motor manifestations of AQP4-IgG positive NMOSD patients, and explore the value of eye movement abnormalities in the evaluation of the disabled disease. METHODS Systemic clinical bedside ocular motor examinations and quantitative horizontal saccadic eye movement assessments were performed in 90 patients with AQP4-IgG positive NMOSD. General disability was evaluated by expanded disability status scale (EDSS). Vision-specific functional status was evaluated by the National Eye Institute-Visual Function Questionnaire (NEI-VFQ 25) and the 10-item neuro-ophthalmic supplement. Brain magnetic resonance imaging (MRI) was acquired in all patients. RESULTS In clinical examination, eye movement abnormalities were found in 38% of NMOSD patients. Abnormalities in the quantitative saccadic test were found in 67% of NMOSD patients, including 48% of patients with clinically normal eye movements. EDSS scores in patients with clinical eye movement abnormality were significantly higher (P<0.001) than those with a normal examination. The 10-item neuro-ophthalmic supplement score was significantly associated with quantitative saccadic eye movement abnormalities (P=0.031). CONCLUSIONS Eye movement abnormalities were common in AQP4-IgG positive NMOSD patients, and were associated with general disability and specific visual handicap. The systemic clinical eye movement examination combined with the quantitative saccade test was easy to perform, and could provide additional useful information in evaluating NMOSD.
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10
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Samson M, Claassen DO. Neurodegeneration and the Cerebellum. NEURODEGENER DIS 2017; 17:155-165. [DOI: 10.1159/000460818] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2016] [Accepted: 02/06/2017] [Indexed: 12/27/2022] Open
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12
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Pal'chun VT, Guseva AL, Chistov SD, Levina YV. [The otoneurological examination of a patient suffering from dizziness]. Vestn Otorinolaringol 2015; 80:60-66. [PMID: 26525475 DOI: 10.17116/otorino201580560-66] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The up-to-date bedside otoneurological examination of the dizzy patients consists of a number of tests and procedures of paramount importance for the localization and diagnostics of the causes underlying dizziness. Recent progress in neurootology made it possible to improve the quality of physical examination and diagnostics; thereby, it promoted the choice of the most adequate treatment. The authors maintain that the modern otoneurological examination must include the following mandatory stages: the measurement of the head tilt and the eye position; the assessment of the presence and the character of nystagmus, oculomotor reactions (saccades, smooth pursuit movements, optokinetic reflex), and vestibular-ocular reflex; the performance of provocative tests and positioning maneuvers; posture and balance control estimation; evaluation of the hearing function.
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Affiliation(s)
- V T Pal'chun
- N.I. Pirogov Russian National Research Medical University, Russian Ministry of Health, Moscow, Russia, 117997
| | - A L Guseva
- N.I. Pirogov Russian National Research Medical University, Russian Ministry of Health, Moscow, Russia, 117997
| | - S D Chistov
- N.I. Pirogov Russian National Research Medical University, Russian Ministry of Health, Moscow, Russia, 117997
| | - Yu V Levina
- N.I. Pirogov Russian National Research Medical University, Russian Ministry of Health, Moscow, Russia, 117997
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13
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Galetta KM, Liu M, Leong DF, Ventura RE, Galetta SL, Balcer LJ. The King-Devick test of rapid number naming for concussion detection: meta-analysis and systematic review of the literature. Concussion 2015; 1:CNC8. [PMID: 30202552 PMCID: PMC6114024 DOI: 10.2217/cnc.15.8] [Citation(s) in RCA: 89] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2015] [Accepted: 07/07/2015] [Indexed: 01/23/2023] Open
Abstract
Background: Vision encompasses a large component of the brain's pathways, yet is not represented in current sideline testing. Objectives: We performed a meta-analysis of published data for a vision-based test of rapid number naming (King-Devick [K-D] test). Studies & methods: Pooled and meta-analysis of 15 studies estimated preseason baseline K-D scores and sensitivity/specificity for identifying concussed versus nonconcussed control athletes. Result: Baseline K-D (n = 1419) showed a weighted estimate of 43.8 s (95% CI: 40.2, 47.5; I2 = 0.0%; p=0.85 – indicating very little heterogeneity). Sensitivity was 86% (96/112 concussed athletes had K-D worsening; 95% CI: 78%, 92%); specificity was 90% (181/202 controls had no worsening; 95% CI: 85%, 93%). Conclusion: Rapid number naming adds to sideline assessment and contributes a critical dimension of vision to sports-related concussion testing.
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Affiliation(s)
- Kristin M Galetta
- Department of Neurology, University of Pennsylvania School of Medicine, 3400 Spruce Street, Philadelphia, PA 19104, USA.,Department of Neurology, University of Pennsylvania School of Medicine, 3400 Spruce Street, Philadelphia, PA 19104, USA
| | - Mengling Liu
- Department of Population Health, NYU School of Medicine, 240 East 38th Street, 20th Floor, New York, NY 10016, USA.,Department of Population Health, NYU School of Medicine, 240 East 38th Street, 20th Floor, New York, NY 10016, USA
| | - Danielle F Leong
- Illinois College of Optometry, 3241 S Michigan Ave, Chicago, IL 60616, USA.,Illinois College of Optometry, 3241 S Michigan Ave, Chicago, IL 60616, USA
| | - Rachel E Ventura
- Department of Neurology, NYU School of Medicine, 240 East 38th Street, 20th Floor, New York, NY 10016, USA.,Department of Neurology, NYU School of Medicine, 240 East 38th Street, 20th Floor, New York, NY 10016, USA
| | - Steven L Galetta
- Department of Neurology, University of Pennsylvania School of Medicine, 3400 Spruce Street, Philadelphia, PA 19104, USA.,Department of Neurology, NYU School of Medicine, 240 East 38th Street, 20th Floor, New York, NY 10016, USA.,Department of Ophthalmology, NYU School of Medicine, 240 East 38th Street, 20th Floor, New York, NY 10016, USA.,Department of Neurology, University of Pennsylvania School of Medicine, 3400 Spruce Street, Philadelphia, PA 19104, USA.,Department of Neurology, NYU School of Medicine, 240 East 38th Street, 20th Floor, New York, NY 10016, USA.,Department of Ophthalmology, NYU School of Medicine, 240 East 38th Street, 20th Floor, New York, NY 10016, USA
| | - Laura J Balcer
- Department of Neurology, NYU School of Medicine, 240 East 38th Street, 20th Floor, New York, NY 10016, USA.,Department of Biostatistics & Epidemiology, University of Pennsylvania School of Medicine, Philadelphia, PA 19104, USA.,Department of Neurology, NYU School of Medicine, 240 East 38th Street, 20th Floor, New York, NY 10016, USA.,Department of Biostatistics & Epidemiology, University of Pennsylvania School of Medicine, Philadelphia, PA 19104, USA
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14
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Posterior Cortical Atrophy Presenting with Superior Arcuate Field Defect. Case Rep Ophthalmol Med 2015; 2015:796381. [PMID: 26417467 PMCID: PMC4568329 DOI: 10.1155/2015/796381] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2015] [Revised: 07/28/2015] [Accepted: 08/13/2015] [Indexed: 11/25/2022] Open
Abstract
An 80-year-old female with reading difficulty presented with progressive arcuate field defect despite low intraocular pressure. Over a 5-year period, the field defect evolved into an incongruous homonymous hemianopia and the repeated neuroimaging revealed progressive posterior cortical atrophy. Further neuropsychiatric assessment demonstrated symptoms and signs consistent with Benson's syndrome.
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