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Descripteurs (mots clés)
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Macula
An oval area in the retina, 3 to 5 mm in diameter, usually located temporal to the posterior pole of the eye and slightly below the level of the optic disk. It is characterized by the presence of a yellow pigment diffusely permeating the inner layers, contains the fovea centralis in its center, and provides the best phototropic visual acuity. It is devoid of retinal blood vessels, except in its periphery, and receives nourishment from the choriocapillaris of the choroid. (From Cline et al., Dictionary of Visual Science, 4th ed)
Synonyme(s)
Macula lutea; Tache jauneRelation(s)
- voir aussi au terme générique : [Descripteurs (mots clés)] Rétine
- voir aussi au terme spécifique : [Descripteurs (mots clés)] Fossette centrale
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Bilateral Valsalva Retinopathy in an Acutely Anemic Patient / Alvaro Jose Castillo in OVS : Optometry & Vision Science, vol.99, 03 (Mars 2022)
[article]
in OVS : Optometry & Vision Science > vol.99, 03 (Mars 2022)
Titre : Bilateral Valsalva Retinopathy in an Acutely Anemic Patient Type de document : article de périodique Auteurs : Alvaro Jose Castillo Année de publication : 2022 Langues : Français (fre) Descripteurs (mots clés) : [Thésaurus HELB]:Optique:rétinopathie
[Thésaurus HELB]:Paramédical:étiologie
[Thésaurus Mesh]Anémie
[Thésaurus Mesh]Hémorragie de la rétine
[Thésaurus Mesh]MaculaMots-clés : rétinopathie de Valsalva Résumé : SIGNIFICANCE
The Valsalva maneuver is known to cause pre-retinal hemorrhages, which have a predilection to affect the macula. Certain conditions may increase the risk of developing Valsalva retinopathy including anemia. Knowing these associations can aid in uncovering underlying systemic conditions for which a patient may not otherwise be aware.
PURPOSE
This case report reviews the presentation of Valsalva retinopathy and the impacts of acute anemia on retinal findings. Recommendations for management are also reviewed and reported.
CASE REPORT
A 30-year-old Hispanic man presented to the emergency department for progressing weakness over the previous month. He had a history of polysubstance abuse and had not been eating for the previous month except for water intake. He was diagnosed with unconjugated hyperbilirubinemia, anemia, thrombocytopenia, hypercoagulable state, hypokalemia, and hypomagnesia and admitted to the intensive care unit for treatment and observation. He was referred to the eye clinic to be examined for Kayser-Fleischer rings because of concern for Wilson disease. On ophthalmological examination, the patient had reduced vision in both eyes attributed to bilateral subinternal limiting membrane macular hemorrhages likely due to Valsalva, with acute anemia and thrombocytopenia as contributing factors. The patient was referred to a retinal specialist, and observation was recommended with follow-up in 3 months. The patient, unfortunately, never followed up despite multiple attempts to reschedule.
CONCLUSIONS
Patient history and the common location of retinal hemorrhages aid in diagnosing Valsalva retinopathy. In this case, the patient had a known history of acute anemia and thrombocytopenia with a recent history of straining. Anemia, among other systemic conditions, can increase the risk of developing retinopathy after a Valsalva maneuver. Although Valsalva retinopathy can occur in healthy patients without underlying conditions, it is important to rule out other conditions that might present with retinal hemorrhage or that may increase the risk of Valsalva retinopathy.Permalink : https://bibliotheque.helb-prigogine.be/opac_css/index.php?lvl=notice_display&id= [article]Exemplaires
Cote Support Localisation Section Disponibilité aucun exemplaire Case Report: Glaucoma-associated Peripapillary Retinoschisis with Corresponding Lamina Cribrosa Defect / Justin D. Roberts in OVS : Optometry & Vision Science, vol. 97, 02 (Février 2020)
[article]
in OVS : Optometry & Vision Science > vol. 97, 02 (Février 2020)
Titre : Case Report: Glaucoma-associated Peripapillary Retinoschisis with Corresponding Lamina Cribrosa Defect Type de document : article de périodique Auteurs : Justin D. Roberts ; Amanda Hunter ; Joseph Mega ; Thomas Cesaro ; Paul B. Greenberg Année de publication : 2020 Langues : Français (fre) Descripteurs (mots clés) : [Thésaurus Mesh]Glaucome à angle ouvert
[Thésaurus Mesh]Macula
[Thésaurus Mesh]Présentations de cas
[Thésaurus Mesh]Tomographie par cohérence optiqueMots-clés : case reports rétinoschisis péripapillaire glaucoma lamina cribrosa tomography, optical coherence glaucoma, open-angle Résumé : SIGNIFICANCE: Peripapillary retinoschisis is associated with primary and secondary glaucoma. It is important that clinicians are familiar with the presentation and management of peripapillary retinoschisis to understand its effects on the patient's glaucoma and to avoid unnecessary referral when the macula is not involved. PURPOSE: We present a case of peripapillary retinoschisis found incidentally on routine optical coherence tomographic (OCT) surveillance of primary open-angle glaucoma. CASE REPORT: A 70-year-old man presented for his annual diabetic eye examination. Surveillance with OCT revealed a splitting of the inner peripapillary retina corresponding to a previously noted notch in the right optic nerve. Further imaging of the right eye using enhanced depth imaging OCT revealed a defect in the lamina cribrosa that may have contributed to the formation and persistence of peripapillary retinoschisis. Retinal nerve fiber layer analysis showed a 5-year history of progressive temporal and inferotemporal thickening in the right eye. The patient was managed conservatively with instruction on regular Amsler grid testing. CONCLUSIONS: As seen in this case, peripapillary retinoschisis typically alters retinal nerve fiber layer thickness on OCT and can be mistakenly attributed to glaucomatous change. Glaucoma-associated peripapillary retinoschisis is usually not vision threatening and can be managed conservatively; in rare cases of progression to macular involvement, patients should be referred to a retina specialist. Permalink : https://bibliotheque.helb-prigogine.be/opac_css/index.php?lvl=notice_display&id= [article]Exemplaires
Cote Support Localisation Section Disponibilité aucun exemplaire Contrast Sensitivity on 1/f Noise Is More Greatly Impacted by Older Age for the Fovea Than Parafovea / Rekha Srinivasan in OVS : Optometry & Vision Science, vol. 98, 04 (Avril 2021)
[article]
in OVS : Optometry & Vision Science > vol. 98, 04 (Avril 2021)
Titre : Contrast Sensitivity on 1/f Noise Is More Greatly Impacted by Older Age for the Fovea Than Parafovea Type de document : article de périodique Auteurs : Rekha Srinivasan ; Andrew Turpin ; Allison M. McKendrick Année de publication : 2021 Langues : Français (fre) Descripteurs (mots clés) : [Thésaurus Mesh]Macula
[Thésaurus Mesh]Rétine
[Thésaurus Mesh]Sensibilité au contraste
[Thésaurus Mesh]Sujet âgéMots-clés : fovea Résumé : SIGNIFICANCE: Contrast sensitivity changes across the visual field with age and is often measured clinically with
various forms of perimetry on plain backgrounds. In daily life, the visual scene is more complicated, and therefore,
the standard clinical measures of contrast sensitivity may not predict a patient's visual experience in more natural
environments.
PURPOSE: This study aims to determine whether contrast thresholds in older adults are different from younger
adults when measured on a 1/f noise background (a nonuniform background whose spatial frequency content is
similar to those present in the natural vision environments).
METHODS: Twenty younger (age range, 20 to 35 years) and 20 older adults (age range, 61 to 79 years) with normal
ocular health were recruited. Contrast thresholds were measured for a Gabor patch of 6 cycles per degree (sine
wave grating masked by a Gaussian envelope of standard deviation 0.17°) presented on 1/f noise background
(root-mean-square contrast, 0.05 and 0.20) that subtended 15° diameter of the central visual field. The stimulus
was presented at four eccentricities (0°, 2°, 4°, and 6°) along the 45° meridian in the noise background, and nine
contrast levels were tested at each eccentricity. The proportion of correct responses for detecting the target at each
eccentricity was obtained, and psychometric functions were fit to estimate the contrast threshold.
RESULTS: Older adults demonstrate increased contrast thresholds compared with younger adults. There was an
eccentricity-dependent interaction with age, with the difference between groups being highest in the fovea compared with other eccentricities. Performance was similar for the two noise backgrounds tested.
CONCLUSIONS: Our results revealed a strong eccentricity dependence in performance between older and younger
adults, highlighting age-related differences in the contrast detection mechanisms between fovea and parafovea for
stimuli presented on nonuniform backgrounds.Note de contenu :
*Permalink : https://bibliotheque.helb-prigogine.be/opac_css/index.php?lvl=notice_display&id= [article]Exemplaires
Cote Support Localisation Section Disponibilité aucun exemplaire La DMLA (Dégénérescence Maculaire Liée à l’Age) / Alain Guyon in LRO : La Revue d'Optométrie et de contactologie, 22 (Juillet 2007)
[article]
in LRO : La Revue d'Optométrie et de contactologie > 22 (Juillet 2007) . - 28-31
Titre : La DMLA (Dégénérescence Maculaire Liée à l’Age) Type de document : article de périodique Auteurs : Alain Guyon, Auteur Année de publication : 2007 Article en page(s) : 28-31 Langues : Français (fre) Descripteurs (mots clés) : [Thésaurus Mesh]Dégénérescence maculaire
[Thésaurus Mesh]MaculaPermalink : https://bibliotheque.helb-prigogine.be/opac_css/index.php?lvl=notice_display&id= [article]Exemplaires
Cote Support Localisation Section Disponibilité Périodique Erasme - périodiques Périodiques Disponible Fact vs. fiction Blue light impact : part 1 of Blue light series / Adam Berger in Global contact, 76 (Mai-aout 2017)
[article]
in Global contact > 76 (Mai-aout 2017) . - p. 20-23
Titre : Fact vs. fiction Blue light impact : part 1 of Blue light series Type de document : article de périodique Auteurs : Adam Berger, Auteur Année de publication : 2017 Article en page(s) : p. 20-23 Langues : Français (fre) Descripteurs (mots clés) : [Thésaurus Mesh]:M:Macula:Macula / traumatismes
[Thésaurus Mesh]Macula
[Thésaurus Mesh]Réduction des dommages
[Thésaurus Mesh]Rythme circadien
[Thésaurus Mesh]Troubles chronobiologiques
[Thésaurus HELB]:Optique:filtres optiques
[Thésaurus HELB]:Optique:Lumière bleue / optiqueMots-clés : Blue light circadian rhythm chronobiology disorders harm reduction Résumé : The impact of Blue light on daily performance, macular cellular damage, and systemic health is becoming universally accepted, both in the scientific literature and in the medical community. As eyecare professionals, we have a great responsibility to help our patients understand how Blue light is affecting their lives and provide them with solutions to minimize that impact. As more lens manufacturers have started to introduce blue-filteringsolutions into their arsenal, many misconceptions have developed around the science of Blue light. This article hopes to dispel some of these myths and provide clarity based on peer-reviewed literature. Permalink : https://bibliotheque.helb-prigogine.be/opac_css/index.php?lvl=notice_display&id= [article]Exemplaires
Cote Support Localisation Section Disponibilité G Périodique Erasme - périodiques Périodiques Disponible Factors Associated with the Macular Ganglion Cell–Inner Plexixiform Layer Thickness in a Cohort of Middle-aged U.S. Adults / Adam J. Paulsen in OVS : Optometry & Vision Science, vol. 98, 03 (Mars 2021)
PermalinkInvestigation of Surrogate Biomarkers Associated with Macular Pigment Status in a Group of Older Irish Adults / Grainne Scanlon in OVS : Optometry & Vision Science, vol. 97, 10 (Octobre 2020)
PermalinkLongitudinal Effect of Progressive Epiretinal Membrane on the Retinal Nerve Fiber Layer / Adam C. LePosa in OVS : Optometry & Vision Science, vol. 99, 01 (Janvier 2022)
PermalinkPermalinkPermalinkA Novel Stimulus to Improve Perimetric Sampling within the Macula in Patients with Glaucoma / Muhammed S. Alluwimi in OVS : Optometry & Vision Science, vol. 98, 04 (Avril 2021)
PermalinkOcular nutrition : part1 : keeping your macula healthy : the role of lutein, zeaxanthin and meso-zeaxanthin / Hannah Bartlett in OPTOMETRY TODAY, vol.47, 14 (Juillet 2007)
PermalinkRelationship of Sighting Ocular Dominance with Macular Photostress Test Time and Thickness of the Middle Macular Layers / Gökhan Pekel in OVS : Optometry & Vision Science, vol. 98, 03 (Mars 2021)
PermalinkSmall Full-thickness Macular Hole Treated with Topical Dorzolamide and Bevacizumab Intravitreal Injections / Estephania Feria Anzaldo in OVS : Optometry & Vision Science, vol. 98,12 (Décembre 2021)
PermalinkThe ageing eye : Module parts 1-12 : Continuing Education and Training prepared for optometrists and students of optometry / Michelle Hennelly
PermalinkThe Integrity of Retinal Morphology in Non-immunocompromised People Living with HIV on Antiretroviral Therapy / Alvin Jeffrey Munsamy in OVS : Optometry & Vision Science, vol. 98, 10 (Octobre 2021)
PermalinkUse of OCT (Optical Coherence Tomography) in the diagnosis of macular disease / Richard Allen in OPTOMETRY TODAY, vol. 57, 10 (Octobre 2017)
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