Titre : Fréquence critique de fusion

Fréquence critique de fusion : Questions médicales fréquentes

Termes MeSH sélectionnés :

Cataract Extraction
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sur Fréquence critique de fusion", "description": "Comment évaluer la fréquence critique de fusion ?\nQuels outils sont utilisés pour le diagnostic ?\nQuels sont les critères de diagnostic ?\nPeut-on diagnostiquer des troubles avec ce test ?\nQuel professionnel effectue ce diagnostic ?", "url": "https://questionsmedicales.fr/mesh/D005425?mesh_terms=Cataract+Extraction&page=3#section-diagnostic" }, { "@type": "MedicalWebPage", "name": "Symptômes", "headline": "Symptômes sur Fréquence critique de fusion", "description": "Quels symptômes indiquent un problème de fusion ?\nLa sensibilité à la lumière est-elle un symptôme ?\nPeut-on ressentir des vertiges ?\nLes troubles de la vision sont-ils fréquents ?\nY a-t-il des signes de fatigue visuelle ?", "url": "https://questionsmedicales.fr/mesh/D005425?mesh_terms=Cataract+Extraction&page=3#section-symptômes" }, { "@type": "MedicalWebPage", "name": "Prévention", "headline": "Prévention sur Fréquence critique de fusion", "description": "Comment prévenir les problèmes de fusion ?\nL'éclairage ambiant joue-t-il un rôle ?\nDes pauses régulières sont-elles nécessaires ?\nL'hydratation aide-t-elle à la prévention ?\nLes examens réguliers sont-ils importants ?", "url": "https://questionsmedicales.fr/mesh/D005425?mesh_terms=Cataract+Extraction&page=3#section-prévention" }, { "@type": "MedicalWebPage", "name": "Traitements", "headline": "Traitements sur Fréquence critique de fusion", "description": "Quels traitements sont disponibles pour ce problème ?\nLa thérapie comportementale aide-t-elle ?\nDes médicaments sont-ils prescrits ?\nLes exercices oculaires sont-ils efficaces ?\nQuand consulter un spécialiste ?", "url": "https://questionsmedicales.fr/mesh/D005425?mesh_terms=Cataract+Extraction&page=3#section-traitements" }, { "@type": "MedicalWebPage", "name": "Complications", "headline": "Complications sur Fréquence critique de fusion", "description": "Quelles complications peuvent survenir ?\nLes troubles neurologiques sont-ils possibles ?\nPeut-on développer une anxiété liée à la vision ?\nDes problèmes de coordination peuvent-ils survenir ?\nLes troubles de l'humeur sont-ils liés ?", "url": "https://questionsmedicales.fr/mesh/D005425?mesh_terms=Cataract+Extraction&page=3#section-complications" }, { "@type": "MedicalWebPage", "name": "Facteurs de risque", "headline": "Facteurs de risque sur Fréquence critique de fusion", "description": "Quels sont les facteurs de risque principaux ?\nL'âge influence-t-il la fréquence critique de fusion ?\nLes troubles oculaires augmentent-ils le risque ?\nLe stress a-t-il un impact ?\nLes antécédents familiaux jouent-ils un rôle ?", "url": "https://questionsmedicales.fr/mesh/D005425?mesh_terms=Cataract+Extraction&page=3#section-facteurs de risque" } ] }, { "@type": "FAQPage", "mainEntity": [ { "@type": "Question", "name": "Comment évaluer la fréquence critique de fusion ?", "position": 1, "acceptedAnswer": { "@type": "Answer", "text": "Des tests visuels mesurant la perception de clignotement sont utilisés." } }, { "@type": "Question", "name": "Quels outils sont utilisés pour le diagnostic ?", "position": 2, "acceptedAnswer": { "@type": "Answer", "text": "Des appareils comme les photomètres et les dispositifs de stimulation lumineuse sont employés." } }, { "@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." } }, { "@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." } }, { "@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." } }, { "@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." } }, { "@type": "Question", "name": "La sensibilité à la lumière est-elle un symptôme ?", "position": 7, "acceptedAnswer": { "@type": "Answer", "text": "Oui, une sensibilité accrue à la lumière peut être liée à des problèmes de fusion." } }, { "@type": "Question", "name": "Peut-on ressentir des vertiges ?", "position": 8, "acceptedAnswer": { "@type": "Answer", "text": "Oui, des vertiges peuvent survenir en raison de la perception altérée des lumières." } }, { "@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." } }, { "@type": "Question", "name": "Y a-t-il des signes de fatigue visuelle ?", "position": 10, "acceptedAnswer": { "@type": "Answer", "text": "Oui, une fatigue visuelle peut se manifester par des difficultés à se concentrer sur des lumières clignotantes." } }, { "@type": "Question", "name": "Comment prévenir les problèmes de fusion ?", "position": 11, "acceptedAnswer": { "@type": "Answer", "text": "Éviter une exposition prolongée à des lumières clignotantes et faire des pauses régulières." } }, { "@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." } }, { "@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." } }, { "@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." } } ] } ] }

Sources (10000 au total)

Femtosecond laser assisted cataract surgery in a cataract patient with low vaulted ICL following LASIK: a case report.

Apart from the conventional utilization of ICL implantation for the correction of refractive errors, its recent applications extend to correcting refractive errors post laser refractive surgery. Notab... A 46-year-old male presented with vision loss in the right eye for 9 months, and he had undergone LASIK 22 years prior and had ICL implantation in both eyes 2 years ago to correct refractive error. On... Our report confirms the feasibility of FLACS in managing cataracts in patients with low vault ICL following LASIK. This procedure does not pose significantly greater challenges than in typical catarac...

Immediate sequential bilateral cataract surgery: a 13-year real-life report of 56 700 cataract operations.

To assess the frequency of immediate sequential bilateral cataract surgery (ISBCS) and endophthalmitis during 13-year period in Tays Eye Centre, Tampere University Hospital, Tampere, Finland.... All cataract surgeries performed between 1 January 2008 and 31 December 2020, and all endophthalmitis cases during the same period were searched from electronic patient records. Numbers and frequencie... The study included 56 700 cataract surgeries in 34 797 patients of whom 39% (n=13 445) had ISBCS. The median age of the patients was 75 (IQR 68-80, range 0.08-99) years at the time of surgery. The pro... The proportion of patients undergoing ISBCS increased from 4.2% in 2008 to 46% in 2020. No endophthalmitis were found to be associated with ISBCS....

23G Minimally Invasive Vitrectomy Combined with Glaucoma Drainage Valve Implantation and Phacoemulsification Cataract Extraction for Neovascular Glaucoma Secondary to Proliferative Diabetic Retinopathy with Vitreous Hemorrhage.

To evaluate the clinical efficacy of the combined application of 23G minimally invasive vitrectomy, glaucoma drainage valve implantation, and phacoemulsification cataract extraction in the treatment o... Eighty-three patients (91 eyes) with PDR diagnosed as NVG phase III complicated with VH from June 2018 to May 2020 were selected as the study subjects. The subjects were randomly divided into 3 groups... Through observation, there was no significant difference in the UCVA, IOP, and INV scores in the 3 groups before operation. After the operation, the UCVA, IOP, and INV scores of the 3 groups were sign... 23G minimally invasive vitrectomy, glaucoma drainage valve implantation, and phacoemulsification cataract extraction can effectively improve the UCVA, IOP, and INV scores of NVG secondary to PDR with ...

Time and Motion Studies to assess surgical productivity in cataract theatre lists within the National Health Service: Immediate Sequential Bilateral Cataract Surgery versus Delayed Sequential Bilateral Cataract Surgery.

To compare productivity of National Health Service cataract lists performing unilateral cataract (UC) surgery vs Immediate Sequential Bilateral Cataract Surgery (ISBCS).... Five 4-hour lists with ISBCS cases and five with UC were observed using time and motion studies (TMS). Individual tasks and timings of each staff member in theatre was recorded by two observers. All o... Median number of eyes operated per 4-hour list was 8 (range 6-8) in the ISBCS group and 5 (5-7) in the UC group (p = 0.028). Mean total theatre time (defined as time between the entry of the first pat... Performing consecutive ISBCS cases under LA on routine cataract surgery lists can increase surgical efficiency. TMS are a useful way to investigate surgical productivity and test theoretical models fo...

Comparisons of outcomes and complications of immediate sequential bilateral cataract surgery and unilateral cataract surgery in a tertiary hospital in South Korea.

We investigated the proportions of immediate sequential bilateral cataract surgery (ISBCS) and unilateral cataract surgery during the coronavirus disease 2019 pandemic and compared visual outcomes bet...

Comparative analysis of changes in retinal layer thickness following femtosecond laser-assisted cataract surgery and conventional cataract surgery.

To investigate the influence of femtosecond laser-assisted cataract surgery (FLACS) on macula by examining changes in retinal layers after FLACS and to compare these changes with those after conventio... This study included 113 unrelated Korean patients with age-related cataract who underwent CCS or FLACS in Severance Hospital between September 2019 and July 2021. Optical coherence tomography was perf... Compared with the CCS group, the FLACS group exhibited a thicker ORL (P = 0.004) and a thinner INL (P = 0.007) after surgery. All retinal layer thickness values showed significant postoperative change... The 1-month postoperative retinal changes were less pronounced in the FLACS group than in the CCS group....

Dementia and cataract surgery in Australia and New Zealand.

Cataract surgery improves quality of life and reduces cognitive deterioration.... This paper discusses the health implications of low vision, commonly related to cataracts, in older adults. A recent publication reported that cataract surgery reduces the risk of dementia by 30% over... We searched Medline from inception to January 2023. We also conducted backward and forward citation searches of included studies and set up alerts to identify studies published after the search date. ... This article provides a broad description of the importance of vision for cognitive function. We discuss access to public-funded cataract surgery in Australia and New Zealand and how this impacts popu... We have evidence that cataract surgery can decrease the risk of dementia. This is an important topic that deserves recognition as part of an overall ageing response by policymakers and health professi...

Early intervention for perioperative hypertension in cataract surgery.

Although perioperative blood-pressure control is important, especially for high-risk patients, no previous report has examined early monitoring of perioperative blood-pressure changes before cataract ... Hospitalized patients who underwent phacoemulsification and intraocular-lens insertion and whose blood pressure was controlled using standardized management to start early monitoring and control (stan... Although there was no difference before the operation, the changes in systolic pressure in the standardized group were significantly lower at the point of entering the operation room, at the beginning... Early monitoring and control of blood pressure in cataract surgery could effectively control perioperative hypertension without additional drug use and could be widely applied in the clinical setting....

Spherical Aberration of Astigmatic Corneas in a Cataract Population.

To study the distribution of spherical aberration (SA) in astigmatic corneas in a cataract population and the relationship between magnitude of corneal astigmatism and fourth-order corneal SA.... Data routinely collected using a Scheimpflug camera (Pentacam; Oculus Optikgeräte GmbH) were retrospectively analyzed. Patients with a minimum age of 60 years were included. Total corneal SA (from ant... A total of 528 eyes were included in this analysis. Low astigmatism was found in 129 patients, moderate astigmatism in 265 patients, and high astigmatism in 134 patients. Mean astigmatism was 0.68 ± 0... SA was significantly larger in the cataract population with high corneal astigmatism. The increase of positive sign SA with the magnitude of astigmatism suggests that patients with moderate to high as...

Importance of optical coherence tomography before cataract surgery.

To determine the importance of optical coherence tomography (OCT) in patients scheduled for cataract surgery who present with no pathologies in biomicroscopic fundus examination.... Retrospective study.... In this study, the routine ophthalmologic examination of patients who were recommended cataract surgery was performed.Occult retinal pathologies were evaluated using OCT in patients without any pathol... A total of 271 eyes from 271 patients were evaluated.The number of patients with retinal pathologies on OCT despite normal fundoscopic examination findings was 38(14.0%).Of these patients,15(39.4%) ha... In one of seven patients evaluated, retinal pathologies were detected on OCT despite normal fundoscopic examination findings.OCT can be used to detect occult retinal pathologies that cannot be detecte...