questionsmedicales.fr
Phénomènes physiologiques oculaires
Fréquence critique de fusion
Fréquence critique de fusion : Questions médicales fréquentes
Termes MeSH sélectionnés :
Diagnostic
5
Évaluation visuelle
Tests de perception
Photomètre
Dispositifs de stimulation
Critères diagnostiques
Perception visuelle
Troubles neurologiques
Troubles visuels
Ophthalmologie
Spécialistes de la vision
Symptômes
5
Maux de tête
Fatigue oculaire
Sensibilité à la lumière
Photophobie
Vertiges
Perception visuelle
Vision floue
Troubles de la vision
Fatigue visuelle
Concentration visuelle
Prévention
5
Prévention
Exposition à la lumière
Éclairage ambiant
Fatigue oculaire
Pauses régulières
Utilisation d'écrans
Hydratation
Santé oculaire
Examens réguliers
Détection précoce
Traitements
5
Lunettes correctrices
Thérapies visuelles
Thérapie comportementale
Gestion des symptômes
Médicaments
Troubles sous-jacents
Exercices oculaires
Amélioration visuelle
Consultation spécialisée
Symptômes persistants
Complications
5
Troubles neurologiques
Exacerbation
Coordination visuelle
Problèmes de coordination
Troubles de l'humeur
Perception visuelle
Facteurs de risque
5
Facteurs de risque
Exposition aux écrans
Troubles oculaires
Myopie
Stress
Perception visuelle
Antécédents familiaux
Troubles visuels
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{
"@type": "Question",
"name": "Quels outils sont utilisés pour le diagnostic ?",
"position": 2,
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"@type": "Question",
"name": "Quels sont les critères de diagnostic ?",
"position": 3,
"acceptedAnswer": {
"@type": "Answer",
"text": "La mesure de la fréquence à laquelle le clignotement est perçu comme continu."
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{
"@type": "Question",
"name": "Peut-on diagnostiquer des troubles avec ce test ?",
"position": 4,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, des troubles neurologiques ou visuels peuvent être identifiés."
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"@type": "Question",
"name": "Quel professionnel effectue ce diagnostic ?",
"position": 5,
"acceptedAnswer": {
"@type": "Answer",
"text": "Un ophtalmologiste ou un spécialiste de la vision réalise ces tests."
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{
"@type": "Question",
"name": "Quels symptômes indiquent un problème de fusion ?",
"position": 6,
"acceptedAnswer": {
"@type": "Answer",
"text": "Des maux de tête, fatigue oculaire ou difficulté à percevoir des mouvements peuvent survenir."
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"@type": "Question",
"name": "La sensibilité à la lumière est-elle un symptôme ?",
"position": 7,
"acceptedAnswer": {
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"@type": "Question",
"name": "Peut-on ressentir des vertiges ?",
"position": 8,
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{
"@type": "Question",
"name": "Les troubles de la vision sont-ils fréquents ?",
"position": 9,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, des troubles comme la vision floue peuvent être associés à des problèmes de fusion."
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"@type": "Question",
"name": "Y a-t-il des signes de fatigue visuelle ?",
"position": 10,
"acceptedAnswer": {
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"text": "Oui, une fatigue visuelle peut se manifester par des difficultés à se concentrer sur des lumières clignotantes."
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"name": "Comment prévenir les problèmes de fusion ?",
"position": 11,
"acceptedAnswer": {
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"text": "Éviter une exposition prolongée à des lumières clignotantes et faire des pauses régulières."
}
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{
"@type": "Question",
"name": "L'éclairage ambiant joue-t-il un rôle ?",
"position": 12,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, un éclairage adéquat peut réduire la fatigue oculaire et les problèmes de fusion."
}
},
{
"@type": "Question",
"name": "Des pauses régulières sont-elles nécessaires ?",
"position": 13,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, faire des pauses fréquentes lors de l'utilisation d'écrans est recommandé."
}
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"@type": "Question",
"name": "L'hydratation aide-t-elle à la prévention ?",
"position": 14,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, une bonne hydratation peut contribuer à la santé oculaire générale."
}
},
{
"@type": "Question",
"name": "Les examens réguliers sont-ils importants ?",
"position": 15,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, des examens réguliers chez un ophtalmologiste aident à détecter précocement les problèmes."
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{
"@type": "Question",
"name": "Quels traitements sont disponibles pour ce problème ?",
"position": 16,
"acceptedAnswer": {
"@type": "Answer",
"text": "Des lunettes correctrices ou des thérapies visuelles peuvent être recommandées."
}
},
{
"@type": "Question",
"name": "La thérapie comportementale aide-t-elle ?",
"position": 17,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, la thérapie comportementale peut aider à gérer les symptômes associés."
}
},
{
"@type": "Question",
"name": "Des médicaments sont-ils prescrits ?",
"position": 18,
"acceptedAnswer": {
"@type": "Answer",
"text": "Des médicaments peuvent être prescrits pour traiter des troubles sous-jacents."
}
},
{
"@type": "Question",
"name": "Les exercices oculaires sont-ils efficaces ?",
"position": 19,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, des exercices oculaires peuvent améliorer la perception visuelle et réduire la fatigue."
}
},
{
"@type": "Question",
"name": "Quand consulter un spécialiste ?",
"position": 20,
"acceptedAnswer": {
"@type": "Answer",
"text": "Il est conseillé de consulter si des symptômes persistent ou s'aggravent."
}
},
{
"@type": "Question",
"name": "Quelles complications peuvent survenir ?",
"position": 21,
"acceptedAnswer": {
"@type": "Answer",
"text": "Des complications comme des migraines ou des troubles de la concentration peuvent apparaître."
}
},
{
"@type": "Question",
"name": "Les troubles neurologiques sont-ils possibles ?",
"position": 22,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, des troubles neurologiques peuvent être exacerbés par des problèmes de fusion."
}
},
{
"@type": "Question",
"name": "Peut-on développer une anxiété liée à la vision ?",
"position": 23,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, l'anxiété peut survenir en raison de la difficulté à traiter les stimuli visuels."
}
},
{
"@type": "Question",
"name": "Des problèmes de coordination peuvent-ils survenir ?",
"position": 24,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, des problèmes de coordination visuelle peuvent être une complication."
}
},
{
"@type": "Question",
"name": "Les troubles de l'humeur sont-ils liés ?",
"position": 25,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, des troubles de l'humeur peuvent être associés à des problèmes de perception visuelle."
}
},
{
"@type": "Question",
"name": "Quels sont les facteurs de risque principaux ?",
"position": 26,
"acceptedAnswer": {
"@type": "Answer",
"text": "L'exposition prolongée à des écrans et des lumières vives augmente le risque."
}
},
{
"@type": "Question",
"name": "L'âge influence-t-il la fréquence critique de fusion ?",
"position": 27,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, le vieillissement peut affecter la perception visuelle et la fréquence critique."
}
},
{
"@type": "Question",
"name": "Les troubles oculaires augmentent-ils le risque ?",
"position": 28,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, des troubles comme la myopie ou l'astigmatisme peuvent augmenter le risque."
}
},
{
"@type": "Question",
"name": "Le stress a-t-il un impact ?",
"position": 29,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, le stress peut exacerber les problèmes de perception visuelle et de fusion."
}
},
{
"@type": "Question",
"name": "Les antécédents familiaux jouent-ils un rôle ?",
"position": 30,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, des antécédents familiaux de troubles visuels peuvent augmenter le risque."
}
}
]
}
]
}
Expert en Médecine, Optimisation des Parcours de Soins et Révision Médicale
Validation scientifique effectuée le 28/02/2025
Contenu vérifié selon les dernières recommandations médicales
5 publications dans cette catégorie
Affiliations :
Applied Cognitive Neuroscience Lab, Department of Human Physiology, Medical University of Gdansk, 80-210 Gdansk, Poland.
Publications dans "Fréquence critique de fusion" :
5 publications dans cette catégorie
Affiliations :
Applied Cognitive Neuroscience Lab, Department of Human Physiology, Medical University of Gdansk, 80-210 Gdansk, Poland.
2nd Department of Radiology, Medical University of Gdansk, 80-210 Gdansk, Poland.
Institute of Health Sciences, Pomeranian University in Slupsk, 76-200 Slupsk, Poland.
Publications dans "Fréquence critique de fusion" :
5 publications dans cette catégorie
Affiliations :
2nd Department of Radiology, Medical University of Gdansk, 80-210 Gdansk, Poland.
Institute of Health Sciences, Pomeranian University in Slupsk, 76-200 Slupsk, Poland.
Department of Human Physiology, Medical University of Gdansk, 80-210 Gdansk, Poland.
Publications dans "Fréquence critique de fusion" :
4 publications dans cette catégorie
Affiliations :
Department of Human Physiology, Medical University of Gdansk, 80-210 Gdansk, Poland.
Department of Anaesthesiology and Intensive Care, Medical University of Gdansk, 80-210 Gdansk, Poland.
Publications dans "Fréquence critique de fusion" :
4 publications dans cette catégorie
Affiliations :
National Centre for Hyperbaric Medicine, Institute of Maritime and Tropical Medicine in Gdynia, Medical University of Gdansk, 80-210 Gdansk, Poland.
Publications dans "Fréquence critique de fusion" :
3 publications dans cette catégorie
Publications dans "Fréquence critique de fusion" :
3 publications dans cette catégorie
Affiliations :
University of Pennsylvania.
Publications dans "Fréquence critique de fusion" :
2 publications dans cette catégorie
Affiliations :
Institute of Health Sciences, Pomeranian University in Slupsk, 76-200 Slupsk, Poland.
Publications dans "Fréquence critique de fusion" :
2 publications dans cette catégorie
Affiliations :
Department of Anaesthesiology, University of Auckland, Auckland, New Zealand.
Publications dans "Fréquence critique de fusion" :
2 publications dans cette catégorie
Affiliations :
Department of Anaesthesiology, University of Auckland, Auckland, New Zealand.
Department of Anaesthesia, Waikato Hospital, Hamilton, New Zealand.
Publications dans "Fréquence critique de fusion" :
2 publications dans cette catégorie
Affiliations :
Environmental, Occupational and Ageing (Integrative) Physiology Laboratory, Haute Ecole Bruxelles-Brabant (HE2B), Brussels, Belgium.
Publications dans "Fréquence critique de fusion" :
2 publications dans cette catégorie
Affiliations :
Department of Anaesthesiology, University of Auckland, Auckland, New Zealand.
Department of Anaesthesia, Auckland City Hospital, Auckland, New Zealand.
Publications dans "Fréquence critique de fusion" :
2 publications dans cette catégorie
Affiliations :
Department of Ophthalmology, The Chinese People's Liberation Army General Hospital & The Chinese People's Liberation Army Medical School, Beijing, China.
Publications dans "Fréquence critique de fusion" :
2 publications dans cette catégorie
Affiliations :
Department of Ophthalmology, The Chinese People's Liberation Army General Hospital & The Chinese People's Liberation Army Medical School, Beijing, China.
Publications dans "Fréquence critique de fusion" :
2 publications dans cette catégorie
Affiliations :
Department of Ophthalmology, The Chinese People's Liberation Army General Hospital, Beijing, China.
Publications dans "Fréquence critique de fusion" :
2 publications dans cette catégorie
Affiliations :
Institute of Occupational, Social, Environmental Medicine, Faculty of Medicine, Heinrich-Heine-University Düsseldorf, 40225 Düsseldorf, Germany.
Publications dans "Fréquence critique de fusion" :
2 publications dans cette catégorie
Affiliations :
Research Group Experimental Surgery, University Hospital Düsseldorf, 40225 Düsseldorf, Germany.
Publications dans "Fréquence critique de fusion" :
2 publications dans cette catégorie
Affiliations :
Artemis Augenklinik, 60314 Frankfurt, Germany.
Publications dans "Fréquence critique de fusion" :
2 publications dans cette catégorie
Affiliations :
Hyperbaric Oxygen Therapy, University Hospital Düsseldorf, 40225 Düsseldorf, Germany.
Publications dans "Fréquence critique de fusion" :
2 publications dans cette catégorie
Affiliations :
Neuroinformatics and Artificial Intelligence Laboratory, Department of Neurophysiology, Neuropsychology and Neuroinformatics, Medical University of Gdansk, 80-210 Gdansk, Poland.
Publications dans "Fréquence critique de fusion" :
Neuropsychology is important in differential diagnosis, treatment planning, surgical work-up, and support of patients with movement disorders and their families. The cognitive profiles of several move...
On the basis of both scientific progress and popular lore, there is growing optimism in the therapeutic potential of cannabis (marijuana) and cannabinoid-based chemicals for movement disorders. There ...
In recognition of the high interest and controversial nature of this subject, the meeting committee of the International Parkinson and Movement Disorders Society arranged for a talk on cannabis at the...
The endocannabinoid system is strongly tied to motor function and dysfunction, with basic research suggesting several promising therapeutic targets related to cannabinoids for movement disorders. Clin...
Further research is greatly needed to better understand the actual clinical benefits and long-term side effects of medical cannabis products for movement disorders indications and populations....
Functional movement disorder (FMD) is a complex neuropsychiatric syndrome, encompassing abnormal movements and weakness, and is a common cause of potentially disabling neurological symptoms. It is vit...
Motor symptoms in functional movement disorders (FMDs) are experienced as involuntary but share characteristics of voluntary action. Clinical and experimental evidence indicate alterations in monitori...
The objective of this study was to test the prediction that FMDs are associated with a reduced ability to make accurate (metacognitive) judgments about self-performed movements....
We compared 24 patients with FMD (including functional gait disturbance, functional tremor, and functional tics) with 24 age- and sex-matched healthy control subjects in a novel visuomotor-metacogniti...
Patients and control subjects showed comparable motor performance, response accuracy, and use of the confidence scale. However, visuomotor sensitivity in the trajectory judgment was reduced in patient...
Patients with FMD exhibited deficits both when making visuomotor decisions about their own movements and in the metacognitive evaluation of these decisions. Reduced metacognitive insight into voluntar...
The purpose of this review is to outline the impact of the COVID-19 pandemic on movement disorder holistic care, particularly in the care of people with Parkinson disease (PWP)....
As the pandemic unfolds, a flurry of literature was published regarding the impact of COVID-19 on people with Parkinson disease including the direct impact of infection, availability of ambulatory car...
COVID-19 has impacted the care of PWP in numerous ways. Recognizing infection in PWP poses challenges. Specific long-term complications, including emerging reports of long COVID syndrome is a growing ...
Drug-induced movement disorders (DIMDs) are most commonly associated with typical and atypical antipsychotics. However, other drugs such as antidepressants, antihistamines, antiepileptics, antiarrhyth...
Post-stroke movement disorders (PSMD) encompass a wide array of presentations, which vary in mode of onset, phenomenology, response to treatment, and natural history. There are no evidence-based guide...
To survey current opinions and practices on the diagnosis and treatment of PSMD....
A survey was developed by the PSMD Study Group, commissioned by the International Parkinson's and Movement Disorders Society (MDS). The survey, distributed to all members, yielded a total of 529 respo...
Parkinsonism (68%), hemiballismus/hemichorea (61%), tremor (58%), and dystonia (54%) were by far the most commonly endorsed presentation of PSMD, although this varied by region. Basal ganglia stroke (...
Regionally varying opinions and practices on PSMD highlight gaps in (and mistranslation of) epidemiologic and therapeutic knowledge. Multicenter registries and prospective community-based studies are ...
The relationship between antiseizure drugs and movement disorders is complex and not adequately reviewed so far. Antiseizure drugs as a treatment for tremor and other entities such as myoclonus and re...
Hereditary or familial spastic paraplegias (SPG) comprise a group of genetically and phenotypically heterogeneous diseases characterized by progressive degeneration of the corticospinal tracts. The co...
To summarize the clinical descriptions of SPG that manifest with movement disorders or ataxias to assist the clinician in the task of diagnosing these diseases....
We conducted a narrative review of the literature, including case reports, case series, review articles and observational studies published in English until December 2022....
Juvenile or early-onset parkinsonism with variable levodopa-responsiveness have been reported, mainly in SPG7 and SPG11. Dystonia can be observed in patients with SPG7, SPG11, SPG22, SPG26, SPG35, SPG...
Patients with SPG may present with different forms of movement disorders such as parkinsonism, dystonia, tremor, myoclonus and ataxia. The specific movement disorder in the clinical manifestation of a...
Peripherally-induced movement disorders (PIMD) should be considered when involuntary or abnormal movements emerge shortly after an injury to a body part. A close topographic and temporal association b...
A comprehensive PubMed search through a broad range of keywords and combinations was performed in February 2023 to identify relevant articles for this narrative review....
The spectrum of the phenomenology of PIMD is broad and it encompasses both hyperkinetic and hypokinetic movements. Hemifacial spasm is probably the most common PIMD. Others include dystonia, tremor, p...
There is considerable heterogeneity among PIMD in terms of severity and nature of injury, natural course, association with pain, and response to treatment. As some patients may have co-existing functi...