questionsmedicales.fr
Phénomènes physiologiques oculaires
Acuité visuelle
Acuité visuelle : Questions médicales fréquentes
Termes MeSH sélectionnés :
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"description": "Comment évaluer l'acuité visuelle ?\nQuels tests sont utilisés pour le diagnostic ?\nQuand consulter un ophtalmologiste ?\nQu'est-ce qu'un examen de la vue ?\nQuels signes indiquent une mauvaise acuité visuelle ?",
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"description": "Quels sont les symptômes d'une mauvaise acuité visuelle ?\nLa vision double est-elle liée à l'acuité visuelle ?\nComment la myopie affecte-t-elle l'acuité visuelle ?\nQuels sont les signes d'une dégénérescence maculaire ?\nLa fatigue oculaire peut-elle réduire l'acuité visuelle ?",
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"description": "Comment prévenir la perte d'acuité visuelle ?\nL'utilisation d'écrans affecte-t-elle l'acuité visuelle ?\nQuels aliments sont bons pour la santé des yeux ?\nLe tabagisme affecte-t-il l'acuité visuelle ?\nComment protéger ses yeux du soleil ?",
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"description": "Quels traitements améliorent l'acuité visuelle ?\nComment les lunettes corrigent-elles l'acuité visuelle ?\nLa chirurgie au laser est-elle efficace ?\nQuels médicaments peuvent aider l'acuité visuelle ?\nLes exercices oculaires améliorent-ils l'acuité ?",
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"description": "Quelles complications peuvent résulter d'une mauvaise acuité ?\nLa cataracte affecte-t-elle l'acuité visuelle ?\nQuels risques sont associés à la dégénérescence maculaire ?\nComment le diabète affecte-t-il l'acuité visuelle ?\nLes infections oculaires peuvent-elles réduire l'acuité ?",
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"description": "Quels sont les facteurs de risque pour l'acuité visuelle ?\nL'âge influence-t-il l'acuité visuelle ?\nLe diabète est-il un facteur de risque ?\nLes antécédents familiaux jouent-ils un rôle ?\nL'exposition au soleil est-elle un risque ?",
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"@type": "Question",
"name": "Comment évaluer l'acuité visuelle ?",
"position": 1,
"acceptedAnswer": {
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"text": "L'acuité visuelle est évaluée à l'aide de tableaux optométriques et de tests spécifiques."
}
},
{
"@type": "Question",
"name": "Quels tests sont utilisés pour le diagnostic ?",
"position": 2,
"acceptedAnswer": {
"@type": "Answer",
"text": "Les tests incluent le test de Snellen et le test de vision de près."
}
},
{
"@type": "Question",
"name": "Quand consulter un ophtalmologiste ?",
"position": 3,
"acceptedAnswer": {
"@type": "Answer",
"text": "Consultez un ophtalmologiste si vous avez une vision floue persistante ou des changements soudains."
}
},
{
"@type": "Question",
"name": "Qu'est-ce qu'un examen de la vue ?",
"position": 4,
"acceptedAnswer": {
"@type": "Answer",
"text": "C'est un examen complet pour évaluer la santé oculaire et l'acuité visuelle."
}
},
{
"@type": "Question",
"name": "Quels signes indiquent une mauvaise acuité visuelle ?",
"position": 5,
"acceptedAnswer": {
"@type": "Answer",
"text": "Des signes incluent la difficulté à lire, à reconnaître des visages ou à voir de loin."
}
},
{
"@type": "Question",
"name": "Quels sont les symptômes d'une mauvaise acuité visuelle ?",
"position": 6,
"acceptedAnswer": {
"@type": "Answer",
"text": "Les symptômes incluent vision floue, difficulté à voir la nuit et fatigue oculaire."
}
},
{
"@type": "Question",
"name": "La vision double est-elle liée à l'acuité visuelle ?",
"position": 7,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, la vision double peut indiquer un problème d'acuité visuelle ou de coordination oculaire."
}
},
{
"@type": "Question",
"name": "Comment la myopie affecte-t-elle l'acuité visuelle ?",
"position": 8,
"acceptedAnswer": {
"@type": "Answer",
"text": "La myopie rend difficile la vision des objets éloignés, affectant l'acuité visuelle."
}
},
{
"@type": "Question",
"name": "Quels sont les signes d'une dégénérescence maculaire ?",
"position": 9,
"acceptedAnswer": {
"@type": "Answer",
"text": "Les signes incluent des taches sombres dans le champ visuel et une vision déformée."
}
},
{
"@type": "Question",
"name": "La fatigue oculaire peut-elle réduire l'acuité visuelle ?",
"position": 10,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, la fatigue oculaire peut temporairement diminuer l'acuité visuelle et causer des douleurs."
}
},
{
"@type": "Question",
"name": "Comment prévenir la perte d'acuité visuelle ?",
"position": 11,
"acceptedAnswer": {
"@type": "Answer",
"text": "Adoptez une alimentation saine, protégez vos yeux du soleil et faites des examens réguliers."
}
},
{
"@type": "Question",
"name": "L'utilisation d'écrans affecte-t-elle l'acuité visuelle ?",
"position": 12,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, une utilisation prolongée d'écrans peut causer fatigue oculaire et diminuer temporairement l'acuité."
}
},
{
"@type": "Question",
"name": "Quels aliments sont bons pour la santé des yeux ?",
"position": 13,
"acceptedAnswer": {
"@type": "Answer",
"text": "Les aliments riches en oméga-3, vitamines C et E, et zinc sont bénéfiques pour les yeux."
}
},
{
"@type": "Question",
"name": "Le tabagisme affecte-t-il l'acuité visuelle ?",
"position": 14,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, le tabagisme augmente le risque de maladies oculaires et peut réduire l'acuité visuelle."
}
},
{
"@type": "Question",
"name": "Comment protéger ses yeux du soleil ?",
"position": 15,
"acceptedAnswer": {
"@type": "Answer",
"text": "Portez des lunettes de soleil avec protection UV pour réduire les risques de dommages oculaires."
}
},
{
"@type": "Question",
"name": "Quels traitements améliorent l'acuité visuelle ?",
"position": 16,
"acceptedAnswer": {
"@type": "Answer",
"text": "Les traitements incluent des lunettes, des lentilles de contact et la chirurgie réfractive."
}
},
{
"@type": "Question",
"name": "Comment les lunettes corrigent-elles l'acuité visuelle ?",
"position": 17,
"acceptedAnswer": {
"@type": "Answer",
"text": "Les lunettes corrigent la réfraction de la lumière pour améliorer la clarté de la vision."
}
},
{
"@type": "Question",
"name": "La chirurgie au laser est-elle efficace ?",
"position": 18,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, la chirurgie au laser peut corriger des problèmes de vision comme la myopie et l'hypermétropie."
}
},
{
"@type": "Question",
"name": "Quels médicaments peuvent aider l'acuité visuelle ?",
"position": 19,
"acceptedAnswer": {
"@type": "Answer",
"text": "Des médicaments peuvent traiter des conditions comme le glaucome, mais ne corrigent pas l'acuité."
}
},
{
"@type": "Question",
"name": "Les exercices oculaires améliorent-ils l'acuité ?",
"position": 20,
"acceptedAnswer": {
"@type": "Answer",
"text": "Les exercices oculaires peuvent aider à soulager la fatigue, mais n'améliorent pas l'acuité structurelle."
}
},
{
"@type": "Question",
"name": "Quelles complications peuvent résulter d'une mauvaise acuité ?",
"position": 21,
"acceptedAnswer": {
"@type": "Answer",
"text": "Les complications incluent des accidents, une qualité de vie réduite et des problèmes psychologiques."
}
},
{
"@type": "Question",
"name": "La cataracte affecte-t-elle l'acuité visuelle ?",
"position": 22,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, la cataracte peut provoquer une vision floue et une diminution de l'acuité visuelle."
}
},
{
"@type": "Question",
"name": "Quels risques sont associés à la dégénérescence maculaire ?",
"position": 23,
"acceptedAnswer": {
"@type": "Answer",
"text": "La dégénérescence maculaire peut entraîner une perte de vision centrale et des difficultés à lire."
}
},
{
"@type": "Question",
"name": "Comment le diabète affecte-t-il l'acuité visuelle ?",
"position": 24,
"acceptedAnswer": {
"@type": "Answer",
"text": "Le diabète peut causer des complications oculaires comme la rétinopathie, affectant l'acuité."
}
},
{
"@type": "Question",
"name": "Les infections oculaires peuvent-elles réduire l'acuité ?",
"position": 25,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, les infections oculaires peuvent entraîner une inflammation et une diminution de l'acuité visuelle."
}
},
{
"@type": "Question",
"name": "Quels sont les facteurs de risque pour l'acuité visuelle ?",
"position": 26,
"acceptedAnswer": {
"@type": "Answer",
"text": "Les facteurs incluent l'âge, les antécédents familiaux, le diabète et l'exposition au soleil."
}
},
{
"@type": "Question",
"name": "L'âge influence-t-il l'acuité visuelle ?",
"position": 27,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, l'acuité visuelle tend à diminuer avec l'âge en raison de diverses conditions oculaires."
}
},
{
"@type": "Question",
"name": "Le diabète est-il un facteur de risque ?",
"position": 28,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, le diabète augmente le risque de maladies oculaires qui peuvent affecter l'acuité."
}
},
{
"@type": "Question",
"name": "Les antécédents familiaux jouent-ils un rôle ?",
"position": 29,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, des antécédents familiaux de maladies oculaires peuvent augmenter le risque d'acuité réduite."
}
},
{
"@type": "Question",
"name": "L'exposition au soleil est-elle un risque ?",
"position": 30,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, une exposition prolongée sans protection peut endommager les yeux et affecter l'acuité."
}
}
]
}
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}
The important factors contributing to the effectiveness of fluoride varnish are the amount of fluoride ion release and the retention time of the varnish on the tooth surface. Commercial fluoride varni...
This study aimed to compare the fluoride intake and salivary fluoride levels after brushing with conventional (1400-1450 ppm) fluoride toothpaste containing different fluoride agents: amine fluoride (...
Respiratory motion correction is of importance in studies of coronary plaques employing...
To investigate the accuracy of the motion correction employed in a software (FusionQuant) used for evaluation of...
This study included 23 patients who undertook thoracic PET scans for the assessment of coronary plaques using...
In total, 19 coronary plaques were identified in 16 patients. No statistical differences were observed for the maximum respiratory motion observed in x, y, and the 3D motion fields (magnitude and dire...
Similar respiratory motion was observed in two directions and 3D for coronary plaques on 4D CT as detected by automatic respiratory motion correction of coronary PET using FusionQuant. The respiratory...
Invasive bone biopsy to assess bone metabolism in patients with chronic kidney disease-mineral and bone disorder may be replaced by the noninvasive 18F-NaF PET/CT and biomarkers of bone metabolism. We...
A cross-sectional study included 17 dialysis patients, and results from 18F-NaF PET/CT scans and the biomarkers were directly compared with the results of histomorphometric analyses of tetracycline do...
Bone biopsies showed 40% high, 20% normal, and 40% low bone turnover. No biopsies had generalized abnormal mineralization, and the bone volume/total tissue volume was low in 80% and high in 7%. The pe...
In conclusion, 18F-NaF PET/CT may be applicable for noninvasive assessment of bone turnover and volume in CKD-MBD....
The objective was to assess the roles of 68Ga-PSMA PET/CT and 18F-NaF PET/CT in evaluation of skeletal metastatic lesions in prostate cancer....
Two hundred consecutive prostate cancer patients who had undergone 68Ga-PSMA PET/CT and 18F-NaF PET/CT at baseline evaluation (n = 80) and following suspected recurrence or disease progression (restag...
PSMA and NAF scans were positive for skeletal metastatic lesions in 67% (134 patients) and negative in 33% (66 patients). The scans were concordant in 80% (160 patients: 66 negative and 94 positive) a...
Though, both 18F-NaF and 68Ga-PSMA are excellent tracers for evaluation of skeletal metastases in prostate cancer, there is a distinct advantage of 68Ga-PSMA PET/CT due to detection of additional skel...
The acromioclavicular (AC) joint is a common site of injury and degenerative changes such as osteoarthritis (OA) of the shoulder. Physical manifestations of OA are preceded by molecular changes, detec...
We analyzed FDG and NaF-PET/CT scans of 41 females (mean age of 43.9 ± 14.2 years) and 45 males (mean age of 44.5 ± 13.8 years) using a semiquantitative technique based on predefined ROI....
There was a greater NaF uptake in the right side of the AC joint compared with the left in both females (left: 2.22 ± 1.00; right: 3.08 ± 1.18; P < 0.0001) and males (left: 2.57 ± 1.49; right: 2.99 ± ...
Our study is the first to reveal the varying effect of right-left limb laterality and aging on FDG and NaF uptake at the AC joint. Future studies correlating the history of shoulder trauma, pain, and ...
The objective of this study was to determine the different forms of fluoride available in dentifrices commercialized in Argentina....
Thirty three different brands of fluoridated dentifrices were purchased in different cities of Argentina. The total fluoride (TF), total soluble fluoride (TSF) and ionic fluoride (IF) of two samples o...
A total of 67% of dentifrices showed fluoride content that compromises anti-caries activity. A total of 54.5% was formulated with sodium fluoride (NaF), 36.3% formulated with sodium monofluorophosphat...
The concentrations of TF were below the reported values. TSF and IF were lower than the total fluoride concentration. Most of the samples studied have TSF concentration that compromises anti-caries ef...
This study explored salivary fluoride levels following toothbrushing with 5000 and 1450 ppm fluoride toothpaste and determined the decline in salivary fluoride levels following the return from 5000 to...
Sodium fluoride-polyvinyl alcohol (NaF-PVA) tape was developed to deliver fluoride to teeth by adding fluoride to polymer tape. Previous studies have demonstrated that tapes are effective and have ant...
The reaction between Na and HF is a typical harpooning reaction which is of great interest due to its significance in understanding the elementary chemical reaction kinetics. This work aims to investi...
The calculations were carried out at the M06-L/6-311++G(2d,2p) level of theory which were performed using the Gaussian16 program. Intrinsic reaction coordinate (IRC) calculations were carried out at t...