Titre : Études épidémiologiques

Études épidémiologiques : Questions médicales fréquentes

Termes MeSH sélectionnés :

Visual Acuity
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?\nQuels comportements de santé sont souvent étudiés ?\nLes études épidémiologiques aident-elles à la sensibilisation ?\nComment les politiques de santé publique sont-elles influencées ?", "url": "https://questionsmedicales.fr/mesh/D016021?mesh_terms=Visual+Acuity&page=3#section-prévention" }, { "@type": "MedicalWebPage", "name": "Traitements", "headline": "Traitements sur Études épidémiologiques", "description": "Comment les études épidémiologiques influencent-elles les traitements ?\nQuels types de traitements sont souvent évalués ?\nLes traitements varient-ils selon les régions ?\nComment les effets secondaires sont-ils pris en compte ?\nLes traitements sont-ils adaptés aux populations spécifiques ?", "url": "https://questionsmedicales.fr/mesh/D016021?mesh_terms=Visual+Acuity&page=3#section-traitements" }, { "@type": "MedicalWebPage", "name": "Complications", "headline": "Complications sur Études épidémiologiques", "description": "Quelles complications sont souvent étudiées ?\nComment les complications sont-elles mesurées ?\nLes complications peuvent-elles être évitées ?\nQuel impact ont les complications sur la santé publique ?\nComment les études évaluent-elles les complications ?", "url": "https://questionsmedicales.fr/mesh/D016021?mesh_terms=Visual+Acuity&page=3#section-complications" }, { "@type": "MedicalWebPage", "name": "Facteurs de risque", "headline": "Facteurs de risque sur Études épidémiologiques", "description": "Quels sont les principaux facteurs de risque identifiés ?\nComment les facteurs de risque sont-ils évalués ?\nLes facteurs de risque peuvent-ils changer au fil du temps ?\nQuel est l'impact des facteurs de risque sur la santé ?\nComment réduire les facteurs de risque ?", "url": "https://questionsmedicales.fr/mesh/D016021?mesh_terms=Visual+Acuity&page=3#section-facteurs de risque" } ] }, { "@type": "FAQPage", "mainEntity": [ { "@type": "Question", "name": "Comment les études épidémiologiques aident-elles au diagnostic ?", "position": 1, "acceptedAnswer": { "@type": "Answer", "text": "Elles identifient les facteurs de risque et les populations à risque, facilitant le diagnostic précoce." } }, { "@type": "Question", "name": "Quels outils sont utilisés dans ces études ?", "position": 2, "acceptedAnswer": { "@type": "Answer", "text": "Des enquêtes, des analyses statistiques et des modèles épidémiologiques sont couramment utilisés." } }, { "@type": "Question", "name": "Quelle est l'importance des cohortes dans le diagnostic ?", "position": 3, "acceptedAnswer": { "@type": "Answer", "text": "Les cohortes permettent d'observer l'évolution des maladies et d'identifier des marqueurs diagnostiques." } }, { "@type": "Question", "name": "Les études épidémiologiques peuvent-elles prédire des épidémies ?", "position": 4, "acceptedAnswer": { "@type": "Answer", "text": "Oui, elles analysent les tendances et les facteurs de risque pour anticiper les épidémies." } }, { "@type": "Question", "name": "Comment les biais affectent-ils le diagnostic ?", "position": 5, "acceptedAnswer": { "@type": "Answer", "text": "Les biais de sélection ou d'information peuvent fausser les résultats et influencer le diagnostic." } }, { "@type": "Question", "name": "Quels symptômes sont souvent étudiés en épidémiologie ?", "position": 6, "acceptedAnswer": { "@type": "Answer", "text": "Les symptômes varient selon les maladies, mais incluent souvent la douleur, la fatigue et la fièvre." } }, { "@type": "Question", "name": "Comment les symptômes sont-ils collectés ?", "position": 7, "acceptedAnswer": { "@type": "Answer", "text": "Ils sont souvent collectés via des questionnaires, des entretiens ou des dossiers médicaux." } }, { "@type": "Question", "name": "Les symptômes peuvent-ils varier selon les populations ?", "position": 8, "acceptedAnswer": { "@type": "Answer", "text": "Oui, les symptômes peuvent différer en fonction de l'âge, du sexe et des facteurs culturels." } }, { "@type": "Question", "name": "Quel rôle jouent les symptômes dans l'épidémiologie ?", "position": 9, "acceptedAnswer": { "@type": "Answer", "text": "Ils aident à identifier les maladies, à évaluer leur gravité et à orienter les traitements." } }, { "@type": "Question", "name": "Les symptômes sont-ils toujours fiables ?", "position": 10, "acceptedAnswer": { "@type": "Answer", "text": "Non, ils peuvent être subjectifs et influencés par des facteurs psychologiques ou sociaux." } }, { "@type": "Question", "name": "Quel est le rôle des études épidémiologiques en prévention ?", "position": 11, "acceptedAnswer": { "@type": "Answer", "text": "Elles identifient les facteurs de risque et les stratégies efficaces pour prévenir les maladies." } }, { "@type": "Question", "name": "Comment les campagnes de vaccination sont-elles évaluées ?", "position": 12, "acceptedAnswer": { "@type": "Answer", "text": "Elles sont évaluées par des études épidémiologiques mesurant l'impact sur l'incidence des maladies." } }, { "@type": "Question", "name": "Quels comportements de santé sont souvent étudiés ?", "position": 13, "acceptedAnswer": { "@type": "Answer", "text": "Les comportements comme l'alimentation, l'exercice physique et le tabagisme sont fréquemment analysés." } }, { "@type": "Question", "name": "Les études épidémiologiques aident-elles à la sensibilisation ?", "position": 14, "acceptedAnswer": { "@type": "Answer", "text": "Oui, elles fournissent des données pour sensibiliser le public aux risques et aux mesures préventives." } }, { "@type": "Question", "name": "Comment les politiques de santé publique sont-elles influencées ?", "position": 15, "acceptedAnswer": { "@type": "Answer", "text": "Elles sont basées sur des preuves issues d'études épidémiologiques pour orienter les interventions." } }, { "@type": "Question", "name": "Comment les études épidémiologiques influencent-elles les traitements ?", "position": 16, "acceptedAnswer": { "@type": "Answer", "text": "Elles identifient l'efficacité des traitements en analysant les résultats dans différentes populations." } }, { "@type": "Question", "name": "Quels types de traitements sont souvent évalués ?", "position": 17, "acceptedAnswer": { "@type": "Answer", "text": "Les traitements médicamenteux, les interventions chirurgicales et les thérapies comportementales." } }, { "@type": "Question", "name": "Les traitements varient-ils selon les régions ?", "position": 18, "acceptedAnswer": { "@type": "Answer", "text": "Oui, les traitements peuvent varier en fonction des ressources disponibles et des pratiques locales." } }, { "@type": "Question", "name": "Comment les effets secondaires sont-ils pris en compte ?", "position": 19, "acceptedAnswer": { "@type": "Answer", "text": "Les études évaluent les effets secondaires en surveillant les événements indésirables chez les patients." } }, { "@type": "Question", "name": "Les traitements sont-ils adaptés aux populations spécifiques ?", "position": 20, "acceptedAnswer": { "@type": "Answer", "text": "Oui, les traitements doivent être adaptés en fonction des caractéristiques démographiques et génétiques." } }, { "@type": "Question", "name": "Quelles complications sont souvent étudiées ?", "position": 21, "acceptedAnswer": { "@type": "Answer", "text": "Les complications varient selon les maladies, incluant des infections, des maladies chroniques, etc." } }, { "@type": "Question", "name": "Comment les complications sont-elles mesurées ?", "position": 22, "acceptedAnswer": { "@type": "Answer", "text": "Elles sont mesurées par des indicateurs de santé, des taux d'hospitalisation et des décès." } }, { "@type": "Question", "name": "Les complications peuvent-elles être évitées ?", "position": 23, "acceptedAnswer": { "@type": "Answer", "text": "Certaines complications peuvent être évitées par des interventions précoces et des soins appropriés." } }, { "@type": "Question", "name": "Quel impact ont les complications sur la santé publique ?", "position": 24, "acceptedAnswer": { "@type": "Answer", "text": "Elles augmentent la morbidité, les coûts de santé et affectent la qualité de vie des patients." } }, { "@type": "Question", "name": "Comment les études évaluent-elles les complications ?", "position": 25, "acceptedAnswer": { "@type": "Answer", "text": "Elles analysent les données cliniques et les résultats des traitements pour identifier les complications." } }, { "@type": "Question", "name": "Quels sont les principaux facteurs de risque identifiés ?", "position": 26, "acceptedAnswer": { "@type": "Answer", "text": "Les facteurs incluent le tabagisme, l'obésité, l'inactivité physique et l'hérédité." } }, { "@type": "Question", "name": "Comment les facteurs de risque sont-ils évalués ?", "position": 27, "acceptedAnswer": { "@type": "Answer", "text": "Ils sont évalués par des études de cohorte, des études cas-témoins et des enquêtes épidémiologiques." } }, { "@type": "Question", "name": "Les facteurs de risque peuvent-ils changer au fil du temps ?", "position": 28, "acceptedAnswer": { "@type": "Answer", "text": "Oui, les facteurs de risque peuvent évoluer en fonction des changements environnementaux et comportementaux." } }, { "@type": "Question", "name": "Quel est l'impact des facteurs de risque sur la santé ?", "position": 29, "acceptedAnswer": { "@type": "Answer", "text": "Ils augmentent la probabilité de développer des maladies et affectent la santé globale des populations." } }, { "@type": "Question", "name": "Comment réduire les facteurs de risque ?", "position": 30, "acceptedAnswer": { "@type": "Answer", "text": "Des interventions ciblées, des campagnes de sensibilisation et des changements de mode de vie peuvent aider." } } ] } ] }

Sources (10000 au total)

The prognostic implication of visual acuity at the time of uveal melanoma diagnosis.

Visual outcomes after primary tumour treatment of uveal melanoma (UM) have been investigated repeatedly. This study evaluates the correlation between best-corrected visual acuity (BCVA) before treatme... Pre-treatment BCVA was examined in relation to tumour dimensions and location, and survival in a retrospective cohort of 1809 patients who underwent plaque brachytherapy. BCVA was also correlated to t... The mean BCVA of the tumour eye prior to plaque brachytherapy was LogMAR 0.42 (SD 0.46). Patients with low BCVA (LogMAR ≥ 1.00) did not differ in age (p = 0.19) and had similar frequency of ciliary bo... UM patients with low BCVA before primary tumour treatment have a worse prognosis, likely related to increased tumour dimensions. Future studies should examine the prognostic significance of BCVA in re...

Association of macular OCT and OCTA parameters with visual acuity in glaucoma.

To investigate the association of macular optical coherence tomography (OCT)/OCT angiography (OCTA) parameters with visual acuity (VA) in glaucoma.... 144 pseudophakic primary open-angle glaucoma eyes were included. Foveal (fVD), parafoveal (pf), perifoveal (perifVD) and whole-image vessel densities (wiVD) of superficial and deep layers, and their c... In early glaucoma (80 eyes), no parameter correlated with VA. In moderate-advanced glaucoma (64 eyes), greater FAZ area (β=0.228) and circumference (β=0.063) correlated with worse VA (p<0.05), but not... Some macular OCT/OCTA parameters were associated with VA in moderate-advanced, but not early glaucoma. These structural parameters may help identify glaucoma patients with impaired vision and reduced ... NCT00221897....

Characterization of vision in pediatric retinoblastoma survivors beyond visual acuity.

Retinoblastoma (RB) and its associated treatments can significantly impact visual acuity. However, little is known regarding other measures of vision, such as contrast sensitivity or saccades. The aim... This cross-sectional study included children aged 5-17 years who had completed treatment for RB. Visual acuity, saccades via fixation analysis, and contrast sensitivity by Cardiff contrast sensitivity... Eleven children were enrolled (mean age, 10.7 ± 3.9 years). Treatment included enucleation (8 children [73%]) and chemotherapy (10 [91%]). Of the 11, one participant was unable to complete testing of ... Decreased contrast sensitivity and impaired saccades were universally observed in this cohort of RB survivors. Comprehensive visual evaluation should be considered for all RB survivors to provide opti...

CT analysis of predictors for visual acuity in optic neuropathy with mucocele.

To evaluate the causative and risk factors for optic neuropathy with mucocele via imaging studies.... We included 21 patients with rhinogenous optic neuropathy with mucocele. We collected data on the sinus involved, age, sex, number of days from the onset of visual impairment to surgery, and computed ... After surgery, visual acuity improved in 16/21 (76.2%) patients, and a correlation analysis showed a significant positive correlation between pre-operative and post-operative visual acuity. In imaging... Imaging studies of optic neuropathy with mucocele help to determine the risk factors and perform early and precise diagnostic imaging and decision-making for surgery....

Assessment of cataract surgery outcomes in Nampula (Mozambique): visual acuity, visual function and quality of life.

Despite advances in surgical techniques, cataract remains the leading cause of preventable blindness, and massive surgeries have been adopted as a strategy to change this situation. Monitoring the res... This is a prospective and longitudinal study in which translation, cultural adaptation and validation of the visual function (VF) and quality of life (QoL) questionnaire were performed. The appearance... VF and QoL questionnaires showed one-dimension, good values of TLI (0.973, 0.951) and SRMR (0.057, 0.054), and for each item, weights > 0.7, H2 > 0.5, ranges > 5.8 and the RMSEA < 0.08. Correlations f... The cataract surgery outcomes are outside the WHO recommendations regarding VA, but they have had a great impact on improving VF and QoL. The questionnaires showed excellent psychometric properties an...