Comment évaluer la perception visuelle ?

Des tests de vision, comme l'optométrie, évaluent la perception visuelle.

Quels examens pour troubles de la perception ?

L'IRM et l'électrorétinogramme aident à diagnostiquer les troubles de la perception.

Quels signes indiquent un problème visuel ?

Des difficultés à voir, des illusions ou des distorsions visuelles peuvent indiquer un problème.

Quand consulter un spécialiste de la vue ?

Consultez un ophtalmologiste si vous ressentez des changements soudains de vision.

Quelles sont les causes de troubles visuels ?

Les causes incluent les maladies oculaires, les traumatismes et les troubles neurologiques.

Quels symptômes de troubles de la perception ?

Les symptômes incluent la vision floue, les halos, et les difficultés de profondeur.

Comment reconnaître une illusion visuelle ?

Les illusions visuelles se manifestent par des perceptions erronées d'objets ou de couleurs.

Qu'est-ce que l'agnosie visuelle ?

L'agnosie visuelle est l'incapacité de reconnaître des objets malgré une vision intacte.

Quels signes d'une fatigue visuelle ?

Les signes incluent des maux de tête, des yeux secs et une vision floue après un usage prolongé.

Comment se manifeste la synesthésie visuelle ?

La synesthésie visuelle se manifeste par des associations involontaires entre couleurs et sons.

Comment prévenir les troubles de la perception ?

Protégez vos yeux avec des lunettes de soleil et faites des examens réguliers.

Quel rôle joue l'alimentation sur la vision ?

Une alimentation riche en vitamines A, C et E peut aider à maintenir une bonne vision.

Comment réduire la fatigue visuelle ?

Faites des pauses régulières lors de l'utilisation d'écrans pour réduire la fatigue visuelle.

Pourquoi éviter le tabac pour la vision ?

Le tabac augmente le risque de maladies oculaires comme la dégénérescence maculaire.

L'exercice physique aide-t-il la vision ?

Oui, l'exercice régulier améliore la circulation sanguine, bénéfique pour la santé oculaire.

Quels traitements pour troubles de la perception ?

Les traitements incluent la thérapie visuelle, les lunettes et parfois la chirurgie.

Comment la thérapie visuelle aide-t-elle ?

La thérapie visuelle améliore la coordination œil-main et la perception visuelle.

Les lunettes corrigent-elles la perception ?

Oui, les lunettes corrigent les erreurs de réfraction et améliorent la perception visuelle.

Quand envisager une chirurgie oculaire ?

La chirurgie est envisagée pour des problèmes structurels comme la cataracte ou le glaucome.

Quels médicaments pour troubles visuels ?

Des médicaments peuvent traiter des conditions comme le glaucome ou les infections oculaires.

Quelles complications des troubles visuels ?

Les complications incluent la perte de vision, l'isolement social et des troubles émotionnels.

Comment les troubles visuels affectent-ils la vie quotidienne ?

Ils peuvent limiter les activités quotidiennes, affecter le travail et la mobilité.

Quels risques de dépression avec troubles visuels ?

Les troubles visuels augmentent le risque de dépression en raison de l'isolement social.

Les troubles de la perception peuvent-ils s'aggraver ?

Oui, sans traitement, certains troubles de la perception peuvent s'aggraver avec le temps.

Quelles sont les conséquences d'une agnosie visuelle ?

L'agnosie visuelle peut entraîner des difficultés dans la reconnaissance d'objets et des interactions sociales.

Quels facteurs de risque pour troubles visuels ?

Les facteurs incluent l'âge, les antécédents familiaux et les maladies chroniques.

Le diabète augmente-t-il les risques visuels ?

Oui, le diabète peut causer des complications oculaires comme la rétinopathie diabétique.

Comment l'hypertension affecte-t-elle la vision ?

L'hypertension peut endommager les vaisseaux sanguins de l'œil, entraînant des troubles visuels.

Le stress influence-t-il la perception visuelle ?

Oui, le stress peut affecter la concentration et la clarté de la perception visuelle.

Les antécédents de traumatismes oculaires sont-ils un risque ?

Oui, les traumatismes oculaires augmentent le risque de troubles de la perception visuelle.

Perception visuelle - Informations médicales vérifiées

[Functional and morphological disorders of taste and olfaction in COVID-19 patients].

Nov 2022

DOI: 10.1007/s00106-022-01218-1 PMID: 36040511

This study aimed to test the prevalence and evolution of acute olfactory and gustatory functional impairment and their morphologic correlates in COVID-19 patients who require hospitalization due to CO... Included were 53 consecutive hospitalized patients (23 males, 30 females; age 42.54 ± 10.95 years) with an RT-PCR-confirmed COVID-19 diagnosis. Patients were examined twice: just after hospital discha... EGM thresholds in patients were significantly higher than those of healthy subjects at both timepoints. EGM thresholds at the second measurement were significantly lower than those at the first measur... COVID-19 affects both gustatory and olfactory functions. In parallel, it also affects the structure and vascularization of both nasal and oral mucosa, albeit the nasal mucosa to a much lesser, non-sig...

Male Female Humans Adult Middle Aged +7 autres

Olfaction and gustation in blindness: a state of the art of the literature.

Jul 2023

DOI: 10.1007/s10072-023-06734-8 PMID: 36913147

To date, there are quite a few studies assessing olfaction and gustation in blindness, with great variability in sample size, participants' age, blindness onset and smell and taste evaluation methods....

Humans Smell Taste Olfaction Disorders Taste Perception +1 autres

Olfaction and apathy in early idiopathic Parkinson's disease.

15 08 2022

DOI: 10.1016/j.jns.2022.120314 PMID: 35679630

Apathy remains a disabling symptom in Parkinson's disease (PD) with limited therapeutic success. Processing of emotions and smell share neuroanatomical and evolutionary pathways.... To explore the association of apathy with smell dysfunction (SD) in early PD.... We analyzed patients with de-novo PD, with follow-up of at least 5 years from the Parkinson's Progression Markers Initiative. SD and apathy were defined using University of Pennsylvania Smell Identifi... We found no association between presence of apathy in patients with and without SD (OR 1.01 [0.49-2.08]). There was no significant difference between PD patients with and without SD in time to apathy ... SD does not portend greater risk of apathy in PD....

Apathy Emotions Humans Olfaction Disorders Parkinson Disease +1 autres

Olfaction preservation in olfactory groove meningiomas: a systematic review.

27 Jul 2023

DOI: 10.1007/s10143-023-02096-z PMID: 37500988

Olfactory groove meningiomas (OGM) are a skull base neoplasm that represents between 8 and 13% of all intracranial meningiomas. Approach selection focuses on achieving frontal lobe decompression, gros...

Humans Meningioma Smell Meningeal Neoplasms Quality of Life +1 autres

[Olfaction and respiratory viruses… A relationship revealed by Covid-19].

Feb 2023

DOI: 10.1051/medsci/2023007 PMID: 36799746

The sense of smell has been underestimated for a long time in humans. It has been brought to the fore by its sudden disappearance during the Covid-19 pandemic of which anosmia (complete loss of smell)...

Humans COVID-19 Smell SARS-CoV-2 Pandemics +2 autres

Olfactory disorders in childhood: A comparative study of olfaction in children with adenoid hyperplasia versus a control group and the postoperative effects of adenoidectomy with respect to olfactory ability.

Nov 2023

DOI: 10.1016/j.ijporl.2023.111735 PMID: 37801831

Hyposmia in childhood is poorly characterized. The "U-Sniff Test", validated for children with anosmia, can be used to objectify olfactory impairment but has not been used to distinguish between hypos... In a prospective comparison, olfaction was assessed by "U-Sniff Test" (score 0-12; <8 hyposmia) in 41 children (5-18 years) with adenoid hyperplasia and compared with 196 children without any respirat... chi-square-test (p < 0.05), odds-ratio, Spearman's rho, ROC-, cluster analysis.... Severe hyposmia was present in 36.6% of children with adenoid-hyperplasia compared to 3.1% of the control-group. Adenoid-children scored significantly more often between 8 and 10 points (58.5%) than t... Questionnaires are insufficient to detect hyposmia in this cohort. In contrast, the "U-Sniff Test" detects even reduced olfactory performance without reaching the cut-off value, which represents the m...

Humans Smell Adenoidectomy Adenoids Anosmia +4 autres

Association between cognition and olfaction-specific parameters in patients with chronic rhinosinusitis.

Jul 2023

DOI: 10.1007/s00405-023-07853-w PMID: 36689021

Patients with chronic rhinosinusitis (CRS) have reported significantly cognitive and olfactory dysfunction. This study aimed to explore the relationship between cognitive function and olfaction-specif... A cross-sectional survey method was used to investigate 98 participants, including 75 patients with CRS and 23 healthy controls. Cognitive function and psychophysical olfactory tests were performed. O... There are significant differences in age, Montreal Cognitive Assessment (MoCA) scores, number of MCI, Lund-Mackay olfactory cleft (LM-OC) score, and blood eosinophil count between CRS with and without... Olfaction-specific clinical parameters were highly correlated with cognitive function in patients with CRS and the OD score was an independent risk factor for MCI in patients with CRS....

Humans Smell Cross-Sectional Studies Olfaction Disorders Rhinitis +3 autres

Olfaction, body mass index, and quality of life with cystic fibrosis combination therapy.

Dec 2023

DOI: 10.1002/alr.23209 PMID: 37301999

Triple-combination therapy of elexacaftor-tezacaftor-ivacaftor (ETI) has been shown to reduce morbidity and mortality in people with cystic fibrosis (PwCF). Although patient body mass index (BMI) favo... The authors performed a prospective cohort study analyzing 41 CF patient responses to the Cystic Fibrosis Questionnaire-Revised (CFQR) and the 22-Item Sino-Nasal Outcome Test (SNOT-22) and used genera... Patients reported significant improvement in their sense of smell at follow-up (p = 0.0036). Their improvements in sense of smell were not confounded by changes in rhinologic or extranasal rhinologic ... Our results support the impression that ETI therapy improves CF-associated rhinologic symptoms and reverses OI, while contributing to improvement in rhinologic QoL. Sense of smell is not an independen...

Humans Smell Body Mass Index Quality of Life Cystic Fibrosis +5 autres

Associations of Olfaction With Longitudinal Trajectories of Brain Volumes and Neuropsychological Function in Older Adults.

28 02 2023

DOI: 10.1212/WNL.0000000000201646 PMID: 36460474

Olfactory function declines with aging, and olfactory deficits are one of the earliest features of neurodegenerative diseases, such as Parkinson disease and Alzheimer disease. Previous studies have sh... In the Baltimore Longitudinal Study of Aging, we chose the first assessment of olfaction to examine the associations with retrospective and prospective changes in neuropsychological performance and br... We analyzed data from 567 (58% women, 42% men, 27% Black, 66% White, and 7% others) participants who had data on odor identification scores and brain volumetric MRI (n = 420 with retrospective repeats... In older adults, olfaction is related to brain atrophy of specific brain regions and neuropsychological changes in specific domains over time. The observed associations are driven, in part, by those w...

Male Humans Female Aged Smell +9 autres

Olfaction in nasal polyp patients after Reboot surgery: an endotype-based prospective study.

Jun 2023

DOI: 10.1007/s00405-022-07813-w PMID: 36571613

To report biomarkers present in the olfactory mucosa in chronic rhinosinusitis with nasal polyps (CRSwNP) in comparison with nasal polyps and to nasal mucosal tissues from control patients. To evaluat... Cohort study from May 2021 to May 2022. We collected samples of olfactory mucosa and nasal polyps from 16 CRSwNP patients and inferior turbinate samples from 20 control subjects. The study was not ran... Type-2 markers were significantly elevated in OM and polyp tissue in CRSwNP (n = 16) vs. controls (n = 20), P < 0.05. TDI scores improved already 1 month (P < 0.05) after surgery and remained stable f... Type-2 inflammation is present in the olfactory mucosa in CRSwNP patients and is associated with smell loss. Reboot surgery, aiming to completely remove inflamed sinus mucosa, significantly improves t...

Humans Smell Nasal Polyps Prospective Studies Olfaction Disorders +6 autres

Perception visuelle : Questions médicales fréquentes

Termes MeSH sélectionnés :

Questions fréquentes et termes MeSH associés

Diagnostic 5

Symptômes 5

Prévention 5

Traitements 5

Complications 5

Facteurs de risque 5

Contenu validé par Dr Olivier Menir

Sous-catégories

Clignement attentionnel

Perception des couleurs

Perception du mouvement

Reconnaissance visuelle des formes

Clôture perceptive

Vision binoculaire

Vision monoculaire

Reconnaissance faciale

Auteurs principaux

Sources (10000 au total)