Titre : Pigment maculaire

Pigment maculaire : Questions médicales fréquentes

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symptômes varient-ils selon l'âge ?", "url": "https://questionsmedicales.fr/mesh/D065348?page=3#section-symptômes" }, { "@type": "MedicalWebPage", "name": "Prévention", "headline": "Prévention sur Pigment maculaire", "description": "Comment prévenir la perte de pigment maculaire ?\nLe tabagisme affecte-t-il le pigment maculaire ?\nL'exposition au soleil influence-t-elle le pigment maculaire ?\nLes exercices oculaires aident-ils à préserver le pigment ?\nLes compléments alimentaires sont-ils préventifs ?", "url": "https://questionsmedicales.fr/mesh/D065348?page=3#section-prévention" }, { "@type": "MedicalWebPage", "name": "Traitements", "headline": "Traitements sur Pigment maculaire", "description": "Quels traitements existent pour améliorer le pigment maculaire ?\nLa chirurgie est-elle une option pour le pigment maculaire ?\nLes changements alimentaires peuvent-ils aider ?\nDes médicaments peuvent-ils améliorer la santé maculaire ?\nLes traitements sont-ils efficaces pour tous ?", "url": "https://questionsmedicales.fr/mesh/D065348?page=3#section-traitements" }, { "@type": "MedicalWebPage", "name": "Complications", "headline": "Complications sur Pigment maculaire", "description": "Quelles complications peuvent survenir avec un faible pigment maculaire ?\nLe faible pigment maculaire peut-il mener à la cécité ?\nY a-t-il des risques de complications liées à l'âge ?\nLes complications sont-elles réversibles ?\nComment les complications affectent-elles la qualité de vie ?", "url": "https://questionsmedicales.fr/mesh/D065348?page=3#section-complications" }, { "@type": "MedicalWebPage", "name": "Facteurs de risque", "headline": "Facteurs de risque sur Pigment maculaire", "description": "Quels sont les principaux facteurs de risque pour le pigment maculaire ?\nL'hérédité joue-t-elle un rôle dans le pigment maculaire ?\nLe diabète influence-t-il le pigment maculaire ?\nL'exposition à la lumière bleue est-elle un facteur de risque ?\nLe stress oxydatif affecte-t-il le pigment maculaire ?", "url": "https://questionsmedicales.fr/mesh/D065348?page=3#section-facteurs de risque" } ] }, { "@type": "FAQPage", "mainEntity": [ { "@type": "Question", "name": "Comment diagnostiquer un déficit en pigment maculaire ?", "position": 1, "acceptedAnswer": { "@type": "Answer", "text": "Un examen ophtalmologique et une tomographie par cohérence optique peuvent aider." } }, { "@type": "Question", "name": "Quels tests sont utilisés pour évaluer le pigment maculaire ?", "position": 2, "acceptedAnswer": { "@type": "Answer", "text": "Des tests de vision et des analyses de la rétine sont couramment utilisés." } }, { "@type": "Question", "name": "Le diagnostic nécessite-t-il une imagerie spéciale ?", "position": 3, "acceptedAnswer": { "@type": "Answer", "text": "Oui, l'imagerie rétinienne peut être nécessaire pour visualiser le pigment." } }, { "@type": "Question", "name": "Quels signes cliniques indiquent un problème de pigment maculaire ?", "position": 4, "acceptedAnswer": { "@type": "Answer", "text": "Des troubles de la vision centrale et des distorsions visuelles peuvent indiquer un problème." } }, { "@type": "Question", "name": "Peut-on mesurer la densité du pigment maculaire ?", "position": 5, "acceptedAnswer": { "@type": "Answer", "text": "Oui, des techniques comme la photométrie peuvent mesurer la densité du pigment." } }, { "@type": "Question", "name": "Quels sont les symptômes d'un faible pigment maculaire ?", "position": 6, "acceptedAnswer": { "@type": "Answer", "text": "Les symptômes incluent une vision floue, des difficultés à voir les couleurs et des halos." } }, { "@type": "Question", "name": "Le manque de pigment maculaire cause-t-il des douleurs oculaires ?", "position": 7, "acceptedAnswer": { "@type": "Answer", "text": "Non, le manque de pigment maculaire ne cause généralement pas de douleurs oculaires." } }, { "@type": "Question", "name": "Comment le pigment maculaire affecte-t-il la vision nocturne ?", "position": 8, "acceptedAnswer": { "@type": "Answer", "text": "Un faible pigment peut réduire la capacité à voir dans des conditions de faible luminosité." } }, { "@type": "Question", "name": "Y a-t-il des symptômes associés à la dégénérescence maculaire ?", "position": 9, "acceptedAnswer": { "@type": "Answer", "text": "Oui, des symptômes comme des taches sombres et une vision déformée peuvent apparaître." } }, { "@type": "Question", "name": "Les symptômes varient-ils selon l'âge ?", "position": 10, "acceptedAnswer": { "@type": "Answer", "text": "Oui, les symptômes peuvent s'aggraver avec l'âge en raison de la perte de pigment." } }, { "@type": "Question", "name": "Comment prévenir la perte de pigment maculaire ?", "position": 11, "acceptedAnswer": { "@type": "Answer", "text": "Une alimentation équilibrée, des lunettes de soleil et des examens réguliers peuvent aider." } }, { "@type": "Question", "name": "Le tabagisme affecte-t-il le pigment maculaire ?", "position": 12, "acceptedAnswer": { "@type": "Answer", "text": "Oui, le tabagisme est un facteur de risque pour la dégénérescence maculaire." } }, { "@type": "Question", "name": "L'exposition au soleil influence-t-elle le pigment maculaire ?", "position": 13, "acceptedAnswer": { "@type": "Answer", "text": "Oui, une exposition excessive au soleil peut endommager le pigment maculaire." } }, { "@type": "Question", "name": "Les exercices oculaires aident-ils à préserver le pigment ?", "position": 14, "acceptedAnswer": { "@type": "Answer", "text": "Il n'y a pas de preuves solides que les exercices oculaires préservent le pigment." } }, { "@type": "Question", "name": "Les compléments alimentaires sont-ils préventifs ?", "position": 15, "acceptedAnswer": { "@type": "Answer", "text": "Oui, des compléments comme la lutéine peuvent aider à maintenir la santé maculaire." } }, { "@type": "Question", "name": "Quels traitements existent pour améliorer le pigment maculaire ?", "position": 16, "acceptedAnswer": { "@type": "Answer", "text": "Des suppléments de lutéine et de zéaxanthine peuvent aider à améliorer la densité." } }, { "@type": "Question", "name": "La chirurgie est-elle une option pour le pigment maculaire ?", "position": 17, "acceptedAnswer": { "@type": "Answer", "text": "Non, il n'existe pas de chirurgie spécifique pour traiter le pigment maculaire." } }, { "@type": "Question", "name": "Les changements alimentaires peuvent-ils aider ?", "position": 18, "acceptedAnswer": { "@type": "Answer", "text": "Oui, une alimentation riche en antioxydants peut soutenir la santé du pigment maculaire." } }, { "@type": "Question", "name": "Des médicaments peuvent-ils améliorer la santé maculaire ?", "position": 19, "acceptedAnswer": { "@type": "Answer", "text": "Certains médicaments peuvent aider à gérer les maladies associées, mais pas directement le pigment." } }, { "@type": "Question", "name": "Les traitements sont-ils efficaces pour tous ?", "position": 20, "acceptedAnswer": { "@type": "Answer", "text": "L'efficacité des traitements peut varier selon l'individu et la gravité de la condition." } }, { "@type": "Question", "name": "Quelles complications peuvent survenir avec un faible pigment maculaire ?", "position": 21, "acceptedAnswer": { "@type": "Answer", "text": "Des complications incluent la dégénérescence maculaire et une vision altérée." } }, { "@type": "Question", "name": "Le faible pigment maculaire peut-il mener à la cécité ?", "position": 22, "acceptedAnswer": { "@type": "Answer", "text": "Dans les cas graves, un faible pigment peut contribuer à la perte de vision significative." } }, { "@type": "Question", "name": "Y a-t-il des risques de complications liées à l'âge ?", "position": 23, "acceptedAnswer": { "@type": "Answer", "text": "Oui, le risque de complications augmente avec l'âge et la perte de pigment." } }, { "@type": "Question", "name": "Les complications sont-elles réversibles ?", "position": 24, "acceptedAnswer": { "@type": "Answer", "text": "Certaines complications peuvent être gérées, mais elles ne sont pas toujours réversibles." } }, { "@type": "Question", "name": "Comment les complications affectent-elles la qualité de vie ?", "position": 25, "acceptedAnswer": { "@type": "Answer", "text": "Les complications peuvent réduire la qualité de vie en limitant les activités visuelles." } }, { "@type": "Question", "name": "Quels sont les principaux facteurs de risque pour le pigment maculaire ?", "position": 26, "acceptedAnswer": { "@type": "Answer", "text": "Les facteurs incluent l'âge, le tabagisme, et une alimentation pauvre en nutriments." } }, { "@type": "Question", "name": "L'hérédité joue-t-elle un rôle dans le pigment maculaire ?", "position": 27, "acceptedAnswer": { "@type": "Answer", "text": "Oui, des antécédents familiaux de maladies oculaires peuvent augmenter le risque." } }, { "@type": "Question", "name": "Le diabète influence-t-il le pigment maculaire ?", "position": 28, "acceptedAnswer": { "@type": "Answer", "text": "Oui, le diabète peut affecter la santé de la rétine et du pigment maculaire." } }, { "@type": "Question", "name": "L'exposition à la lumière bleue est-elle un facteur de risque ?", "position": 29, "acceptedAnswer": { "@type": "Answer", "text": "Oui, une exposition prolongée à la lumière bleue peut endommager le pigment maculaire." } }, { "@type": "Question", "name": "Le stress oxydatif affecte-t-il le pigment maculaire ?", "position": 30, "acceptedAnswer": { "@type": "Answer", "text": "Oui, le stress oxydatif peut contribuer à la dégradation du pigment maculaire." } } ] } ] }

Sources (4924 au total)

Macular pigment evaluation using dual-wavelength fundus auto-fluorescence imaging.

Macular pigment plays an important role in the reduction of oxidative stress and in preventing retinal diseases. Quick and easy measurements of the macular pigment are essential in both clinical and r... New devices allow us to examine fundus autofluorescence using both blue and green excitation wavelengths. This allows detection of the amount of macular pigment by subtracting these two images because... During our 15-month study, we observed a positive trend in pixel lightness values, suggesting an increase in macular pigments in the foveal area. In all patients taking daily lutein supplements, the f... With appropriate patients and procedures for capturing autofluorescence images, this is a valuable technique for macular pigment evaluation in follow-up examinations using software image post-processi...

Macular hole with retinal pigment epithelium tear after anti-VEGF therapy in an eye with neovascular age-related macular degeneration.

To report a case of a full-thickness macular hole (FTMH) associated with a retinal pigment epithelium (RPE) tear after anti-vascular endothelial growth factor (anti-VEGF) therapy for neovascular age-r... A 73-year-old man with nvAMD in the right eye received an intravitreal aflibercept injection due to enlarged pigment epithelial detachment. However, 2 days after the third injection, the patient exper... Our case highlights a rare complication of both an FTMH and an RPE tear after anti-VEGF therapy. Vitrectomy, with the inverted ILM flap technique, proved effective in closing the FTMH despite the comp...

Comparing 2-dimensional macular pigment optical density with objective and subjective perimetry and visual acuity in age-related macular degeneration.

To compare diagnostic power for different severities of age-related macular degeneration (AMD) of two-dimensional macular pigment optical densities (2D-MPOD) and spatially matched objective perimetry,... The ObjectiveField Analyser (OFA) provided objective perimetry, and a Heidelberg Spectralis optical coherence tomography (OCT) measured 2D-MPOD in AMD patients, both completed twice over 0.99 ± 0.16 y... In 58 eyes of 29 subjects (71.6 ± 6.3 years, 22 females), we found significant correlations between 2D-MPOD and OFA sensitivities for Age-Related Eye Disease Studies (AREDS)-3 and AREDS-4 severities. ... MPOD changes correlated with central functional changes and significant correlations extended peripherally in later-stage AMD. Good diagnostic power for earlier-stage AMD and significant change over t...

Retinal pigment epithelium-Bruch's membrane volume in grading of age-related macular degeneration.

To assess the agreement of optical coherence tomography (OCT) algorithm-based retinal pigment epithelium -Bruch's membrane complex volume (RBV) with fundus photograph-based age-related macular degener... Digital color fundus photographs (CFPs) and spectral domain OCT images were acquired from 96 elderly subjects. CFPs were graded according to Age-Related Eye Disease Study (AREDS) classification. OCT i... RBV correlated with AMD grading (... RBV correlate with AMD grading status, with a stronger association in patients with moderate, non-late AMD grades. This effect is driven mostly by lesions with drusen or pigmentation. Lesions with dep...

Macular pigment optical density of hyperopic anisometropic amblyopic patients measured by fundus reflectometry.

Hyperopic anisometropia is a major cause of amblyopia and may be associated with macular pigment optical density (MPOD) reduction. To explore whether the MPOD changes in hyperopic anisometropic amblyo... This was a cross-sectional study conducted from January 2017 to June 2017. Forty subjects (25 males and 15 females) between the ages of 6 and 10 years were recruited. The subjects' eyes were divided i... The MPOD of amblyopic and fellow eyes was 0.12 ± 0.03 log units and 0.13 ± 0.04 log units, respectively, with a significant difference (... This study is the first to report that the MPOD is decreased in hyperopic anisometropic amblyopia. In this study, no correlation between the MPOD and MFT was found. In the future, factors that induce ...