Titre : Acuité visuelle

Acuité visuelle : Questions médicales fréquentes

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"Symptômes sur Acuité visuelle", "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 ?", "url": "https://questionsmedicales.fr/mesh/D014792?page=6#section-symptômes" }, { "@type": "MedicalWebPage", "name": "Prévention", "headline": "Prévention sur Acuité visuelle", "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 ?", "url": "https://questionsmedicales.fr/mesh/D014792?page=6#section-prévention" }, { "@type": "MedicalWebPage", "name": "Traitements", "headline": "Traitements sur Acuité visuelle", "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 ?", "url": "https://questionsmedicales.fr/mesh/D014792?page=6#section-traitements" }, { "@type": "MedicalWebPage", "name": "Complications", "headline": "Complications sur Acuité visuelle", "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 ?", "url": "https://questionsmedicales.fr/mesh/D014792?page=6#section-complications" }, { "@type": "MedicalWebPage", "name": "Facteurs de risque", "headline": "Facteurs de risque sur Acuité visuelle", "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 ?", "url": "https://questionsmedicales.fr/mesh/D014792?page=6#section-facteurs de risque" } ] }, { "@type": "FAQPage", "mainEntity": [ { "@type": "Question", "name": "Comment évaluer l'acuité visuelle ?", "position": 1, "acceptedAnswer": { "@type": "Answer", "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." } } ] } ] }

Sources (10000 au total)

Immediate Vitrectomy for Acute Endophthalmitis in Patients with a Visual Acuity of Hand Motion or Better.

To determine the efficacy of immediate pars plana vitrectomy as the primary treatment for acute endophthalmitis in patients with a visual acuity (VA) of hand motion (HM) or better.... A total of 149 patients who were referred to a single center for acute endophthalmitis after cataract surgery over the 13-year study period were retrospectively analyzed. Only patients presenting with... There was no significant difference in the proportion of good (final VA ≥20 / 40) and poor (VA ≤ counting finger) visual outcomes between the groups. However, subgroup analysis of patients with a VA o... For patients with endophthalmitis presenting with a VA of HM, performing a prompt vitrectomy reduced the incidence of reintervention and poor visual outcomes than the administration of intravitreal an...

Prevalence of reduced visual acuity among adolescents in Jiaocheng County, Shanxi Province.

To investigate the prevalence of reduced visual acuity among adolescents in Jiaocheng County, Shanxi Province.... Fourteen thousand fifty-one Jiaocheng County students aged 7 to 21 were chosen to engage in this research project in 2019. For uncorrected distance visual acuity (UCDVA) testing, a 5 m standard logari... In Jiaocheng County, Shanxi Province, the prevalence of reduced UCDVA among adolescents was 77.54% in 2019, with the highest rate of severely reduced UCDVA at 47.58% and myopia accounting for the high... Adolescents in Jiaocheng County, Shanxi Province, have a high prevalence of reduced UCDVA, and interventions targeting key populations should be increased based on effective prevention and control of ...

[Treatment and cost relationship on visual acuity improvement in age-associated macular degeneration].

To relate the visual acuity changes (VA) with the cost of care and treatment with anti-vascular endothelial growth factor (AntiVEGF) therapy in patients diagnosed with exudative age-related macular de... Observational, longitudinal, retrospective study of patients older than 50 years diagnosed with exudative AMD, with a logMAR VA between 0.6 and 0.06, in follow-up and treatment in our tertiary hospita... AntiVEGF treatments (ranibizumab, aflibercept and both) maintained VA in patients with exudative AMD. In general, care and treatment costs were lower in the group that received both drugs....

Relationship of Density, Depth, and Surface Irregularity of Superficial Corneal Opacification with Visual Acuity.

To explore the relationship between the density, depth, and surface irregularity of superficial corneal opacities and vision.... This prospective imaging study included 19 patients with unilateral superficial corneal opacification due to scarring post-microbial keratitis. Each eye underwent an assessment of uncorrected visual a... The mean logMAR UCVA, BSCVA, and CLCVA were 0.76, 0.35, and 0.28, respectively. The corneal scars had a mean thickness of 158.7 ± 61 µ and density of 65.73 ± 24.46 GSU. Bivariate analysis model for UC... In superficial corneal stromal scarring, deranged surface irregularity parameters like higher-order aberrations affect the final visual acuity more than the depth or density of the opacity....

Evaluation of Visual Acuity, Macular Thickness, and Level of Proteinuria in Children with Nephrotic Syndrome.

Macular edema, serous retinal detachment, and retinal pigment epithelial detachment have been reported in patients with nephrotic syndrome. However, there is limited data about macular thickness in ch... The comparative cross-sectional study included 66 children aged 6 to 17 years with nephrotic syndrome and healthy control seen in two tertiary centers in Malaysia. We recorded demographic data, as wel... The mean foveal thickness was 238.15 ± 22.98 µm for children with nephrotic syndrome and 237.01 ± 22.60 µm for the control group. There was no significant difference in the mean macular thickness betw... The mean macular thickness in children with nephrotic syndrome was similar to that of healthy children. A significant correlation between the mean thickness of the outer macular layer and the presenti...

Influence of decentration and tilt of Tecnis ZCB00 on visual acuity and higher order aberrations.

To determine the influence of decentration and tilt of a pseudophakic aspheric intraocular lens (IOL) on visual acuity (VA) and higher-order aberrations (HOAs), and to analyze the agreement between pu... A prospective interventional case series study including thirty-three patients undergoing Tecnis ZCB00 (Abbott Medical Optics) implantation. IOL decentration and tilt with respect to two reference sys... IOL decentration only showed a significant effect on internal HOAs for [Formula: see text] (R... Tecnis ZCB00 decentration and tilt values after uneventful implantation appear not to have influence on VA, and their effect on HOAs are not high enough to clinically affect quality of vision. Pupil a...

Associations with baseline visual acuity in 12,414 eyes starting treatment for neovascular AMD.

To determine baseline visual acuity before the start of treatment for neovascular age-related macular degeneration (AMD), compare median and visual acuity states between treatment sites and investigat... Anonymised demographic and clinical data, collected as part of routine clinical care, were extracted from electronic medical records at treating National Health Service (NHS) Trusts. Analyses were res... Analysis included 12,414 eyes of 9116 patients at 13 NHS Trusts. Median baseline acuity was LogMAR 0.46 (interquartile range = 0.26-0.80) and 34.5% of eyes had good acuity, defined as LogMAR ≤0.3. Bas... Despite access to publicly funded treatment within the NHS, variation in visual acuity at the start of neovascular AMD treatment persists. Identifying the characteristics associated with poor baseline...

Effects of physical activity combined with different visual target presentation durations of ciliary-muscle training on visual acuity in children.

This study aimed to identify the effect of different durations of visual target presentation during ciliary-muscle training on children's kinetic visual acuity (KVA), uncorrected distance visual acuit... Based on the ciliary-muscle regulation mechanism, an intervention program involving ciliary-muscle training with different durations of visual target presentation combined with physical education clas... After 32 weeks of the intervention, the KVA and UDVA of each experimental group were significantly improved (... In school physical education classes, the 1-s, 3-s, and 5-s ciliary-muscle regulating exercise could effectively improve the kinetic visual acuity, uncorrected distance visual acuity, and accommodativ...

Visual acuity and causes of central visual loss in the adult Danish population 2020-2022. Results from the FORSYN study.

Knowledge of visual health in the population is necessary for designing and implementing measures to handle visual handicap. The purpose of the FORSYN (Forekomst af synshandicap og synshjaelpemidler i... A population-representative sample of 10 350 citizens living within 40 kilometres from Aarhus University Hospital were invited to answer a questionnaire about quality of life related to vision, measur... Population-adjusted visual acuity in ETDRS letters (mean ± SD) differed significantly (p < 0.0001) among the worse eye (84.1 ± 0.25), the better eye (88.4 ± 0.11) and binocularly (89.2 ± 0.15). Social... Recent advances in the therapy of chorioretinal vascular diseases have been paralleled with a reduction in central vision loss secondary to exudative AMD and diabetic retinopathy in Denmark. The demog...