A partir de cette page vous pouvez :
Retourner au premier écran avec les dernières notices... |
Descripteurs (mots clés)
Thésaurus Mesh
> O > Oedème cornéen
Oedème cornéen
An excessive amount of fluid in the cornea due to damage of the epithelium or endothelium causing decreased visual acuity.
Synonyme(s)
Oedème de la cornéeRelation(s)
- voir aussi au terme générique : [Descripteurs (mots clés)] Maladies de la cornée
Ajouter le résultat dans votre panier Affiner la recherche
Etendre la recherche sur niveau(x) vers le bas
Anterior Corneal High-order Aberrations in Fuchs’ Endothelial Corneal Dystrophy Classified by Scheimpflug Tomography / Ruveyde Bolac in OVS : Optometry & Vision Science, vol. 100, 02 (Février 2023)
[article]
in OVS : Optometry & Vision Science > vol. 100, 02 (Février 2023)
Titre : Anterior Corneal High-order Aberrations in Fuchs’ Endothelial Corneal Dystrophy Classified by Scheimpflug Tomography Type de document : article de périodique Auteurs : Ruveyde Bolac ; Elvin Yildiz ; Sevcan Balci Année de publication : 2023 Langues : Français (fre) Descripteurs (mots clés) : [Thésaurus Mesh]Acuité visuelle
[Thésaurus Mesh]Dystrophie endothéliale de Fuchs
[Thésaurus Mesh]Oedème cornéen
[Thésaurus Mesh]TomographieMots-clés : kératoplastie endothéliale Résumé : SIGNIFICANCE: Visual acuity may be limited after endothelial keratoplasty in Fuchs’ endothelial corneal dystrophy. This may be due to increased anterior high-order aberrations that persist after endothelial keratoplasty. It is not clear at what stage these aberrations begin. We aimed to evaluate how subclinical corneal edema affects anterior corneal high-order aberrations. PURPOSE: We aimed to evaluate anterior corneal high-order aberrations according to the presence of subclinical corneal edema in Fuchs’ endothelial corneal dystrophy using Scheimpflug topography. METHODS: All the patients underwent corneal topography (Sirius Scheimpflug-Placido disc camera; CSO Ophthalmic, Scandicci, Italy). Fifty-two eyes of 31 patients with Fuchs’ endothelial corneal dystrophy and 52 eyes of 35 patients without corneal problems were included. In addition, patients with Fuchs’ endothelial corneal dystrophy were divided into two groups according to subclinical corneal edema as with Fuchs’ endothelial corneal dystrophy-edema and Fuchs’ endothelial corneal dystrophy-nonedema. Subclinical corneal edema was defined based on the presence of at least two of three findings of the loss of regular isopachs, displacement of the thinnest point of the cornea, and posterior depression. High-order aberrations were expressed as Zernike polynomials in the 4- and 6-mm optical zone. RESULTS: We found that subclinical corneal edema in Fuchs’ endothelial corneal dystrophy caused a larger 4-mm trefoil II and a smaller 6-mm spherical aberration II measurements than the nonedema group. The 6-mm total high-order aberrations, 6-mm coma aberration, and 4- and 6-mm trefoil II aberration measurements were larger, and the 6-mm spherical aberration II was smaller in Fuchs’ endothelial corneal dystrophy patients with edema compared with the healthy eyes. CONCLUSIONS: The presence of subclinical corneal edema in Fuchs’ endothelial corneal dystrophy results in larger 4-mm trefoil II and smaller 6-mm spherical aberration II measurements. More patients with intermediate values are needed to evaluate the effect of these aberrations on visual acuity Permalink : https://bibliotheque.helb-prigogine.be/opac_css/index.php?lvl=notice_display&id= [article]Exemplaires
Cote Support Localisation Section Disponibilité aucun exemplaire BCLA 2009 : 33ème congrès à Manchester de la British Contact Lens Association (BCLA) / Harminder Dua in LRO : La Revue d'Optométrie et de contactologie, 31 (Octobre 2009)
[article]
in LRO : La Revue d'Optométrie et de contactologie > 31 (Octobre 2009) . - 10-16
Titre : BCLA 2009 : 33ème congrès à Manchester de la British Contact Lens Association (BCLA) Type de document : article de périodique Auteurs : Harminder Dua, Auteur Article en page(s) : 10-16 Descripteurs (mots clés) : [Thésaurus Mesh]Actes de congrès
[Thésaurus Mesh]Cellules souches
[Thésaurus Mesh]Lentilles de contact
[Thésaurus Mesh]Oedème cornéen
[Thésaurus Mesh]Oeil
[Thésaurus Mesh]OptométriePermalink : 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 Fitting set for corneoscleral lenses after eye cast / Hans-Walter Roth in Global contact, 86 (Septembre -décembre 2020)
[article]
in Global contact > 86 (Septembre -décembre 2020) . - p. 16-17
Titre : Fitting set for corneoscleral lenses after eye cast Type de document : article de périodique Auteurs : Hans-Walter Roth Année de publication : 2020 Article en page(s) : p. 16-17 Langues : Français (fre) Descripteurs (mots clés) : [Thésaurus Mesh]Histoire
[Thésaurus Mesh]Lentilles de contact
[Thésaurus Mesh]Oedème cornéen
[Thésaurus Mesh]Perméabilité
[Thésaurus HELB]:Optique:port de lentilles de contactRésumé : The oldest contact lenses, dating from around 1880, were made glass. Giving them the necessary shape was labourious, and they were also highly fragile. Their lack of gas permeability and poor wettability by the tear fluid daily wear impossible. After only one hour, it is reported, the eye developed corneal edema, and the consequences were pathological glare and loss vision. Longer wearing times could not be achieved in these years 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 Fluid Reservoir Thickness and Corneal Edema during Open-eye Scleral Lens Wear / Damien Fisher in OVS : Optometry & Vision Science, vol. 97, 09 (Septembre 2020)
[article]
in OVS : Optometry & Vision Science > vol. 97, 09 (Septembre 2020)
Titre : Fluid Reservoir Thickness and Corneal Edema during Open-eye Scleral Lens Wear Type de document : article de périodique Auteurs : Damien Fisher ; Michael J. Collins ; Stephen J. Vincent Année de publication : 2020 Langues : Français (fre) Descripteurs (mots clés) : [Thésaurus HELB]:Optique:port de lentilles de contact
[Thésaurus HELB]:Paramédical:Lentille sclérale
[Thésaurus HELB]:Paramédical:Oxygénation
[Thésaurus Mesh]Cornée
[Thésaurus Mesh]Oedème cornéenRésumé : SIGNIFICANCE: There is debate concerning corneal oxygenation during scleral lens wear due to the potential additive hypoxic effect of a lens plus a fluid reservoir. This study investigated the agreement between theoretical models and empirical measurements of scleral lens–induced corneal edema with respect to central fluid reservoir thickness. PURPOSE: The purpose of this study was to examine the effect of altering the fluid reservoir thickness on central corneal edema during short-term open-eye scleral lens wear and to compare these empirical measurements with predictive theoretical models. METHODS: Ten participants (age, 30 ± 4 years) with normal corneas wore highly oxygen-permeable scleral lenses (141 Dk 10−11 cm3 O2 (cm)/[(s) (cm2 ) (mmHg)]) on separate days with either a low (mean, 144; 95% confidence interval [CI], 127 to 160 μm), medium (mean, 487; 95% CI, 443 to 532 μm), or high (mean, 726; 95% CI, 687 to 766 μm) initial fluid reservoir thickness. Epithelial, stromal, and total corneal edema were measured using high-resolution optical coherence tomography after 90 minutes of wear, before lens removal. Data were calculated or extracted from published theoretical models of scleral lens–induced corneal edema for comparison. RESULTS: Scleral lens–induced central corneal edema was stromal in nature and increased with increasing fluid reservoir thickness; mean total corneal edema was 0.69% (95% CI, 0.34 to 1.04%), 1.81% (95% CI, 1.22 to 2.40%), and 2.11% (95% CI, 1.58 to 2.65%) for the low, medium, and high thickness groups, respectively. No significant difference in corneal edema was observed between the medium and high fluid reservoir thickness groups (P = .37). “Resistance in series” oxygen modeling overestimated the corneal edema observed for fluid reservoir thickness values greater than 400 μm. CONCLUSIONS: Scleral lens–induced central corneal edema increases with increasing reservoir thickness, but plateaus at a thickness of around 600 μm, in agreement with recent theoretical modeling that incorporates factors related to corneal metabolism Permalink : https://bibliotheque.helb-prigogine.be/opac_css/index.php?lvl=notice_display&id= [article]Exemplaires
Cote Support Localisation Section Disponibilité aucun exemplaire Scleral Lens–Induced Corneal Edema after Penetrating Keratoplasty / Kumar Mukesh in OVS : Optometry & Vision Science, vol. 97, 09 (Septembre 2020)
[article]
in OVS : Optometry & Vision Science > vol. 97, 09 (Septembre 2020)
Titre : Scleral Lens–Induced Corneal Edema after Penetrating Keratoplasty Type de document : article de périodique Auteurs : Kumar Mukesh ; Khamar Pooja ; Shetty Rohit ; Stephen J. Vincent Année de publication : 2020 Langues : Français (fre) Descripteurs (mots clés) : [Thésaurus Mesh]Oedème cornéen
[Thésaurus Mesh]Oxygène
[Thésaurus Mesh]Perméabilité
[Thésaurus Mesh]Transplantation de cornée
[Thésaurus HELB]:Optique:lentilles scléralesRésumé : SIGNIFICANCE: Modern highly oxygen-permeable nonfenestrated scleral lenses induce approximately 1 to 2% corneal edema after short periods of lens wear in healthy individuals. This study investigated the magnitude and regional variation in scleral lens-induced central corneal edema after penetrating keratoplasty. PURPOSE: The purpose of this study was to examine the magnitude and regional variation in corneal edema after a short period of scleral lens wear in post–penetrating keratoplasty eyes and a control group of eyes with healthy corneas. METHODS: Nine post–penetrating keratoplasty eyes (nine participants; mean age, 32 years) were fitted with highly oxygen-permeable nonfenestrated scleral lenses (Dk 100 10−11 cm3 O2 (cm)/[(s) (cm2 ) (mmHg)]). Central corneal thickness was measured using Scheimpflug imaging before lens insertion and immediately after lens removal (mean wearing time, 6.2 hours). Corneal edema was quantified across the central 6 mm and compared with data obtained from a historical control group of healthy eyes using a similar experimental paradigm. RESULTS: Post–penetrating keratoplasty eyes exhibited significant corneal edema after lens wear (2.99% [95% confidence interval, 1.13 to 4.85%]) averaged across the central 6 mm (P = .006) and regional variations in edema (P < .001) (greater swelling toward the graft-host junction inferiorly). Compared with healthy eyes, post– penetrating keratoplasty eyes displayed a greater magnitude of corneal edema (by ~3 ) and greater variability in the corneal response (by ~2.5 ). CONCLUSIONS: Scleral lens–induced central corneal edema is greater in post–penetrating keratoplasty eyes and varies regionally compared with healthy corneas after short-term wear. Lens design and fitting factors contributing to hypoxic and mechanical corneal stress should be carefully considered for all post–penetrating keratoplasty scleral lens fits to minimize potential graft rejection or failure in the longer-term. Permalink : https://bibliotheque.helb-prigogine.be/opac_css/index.php?lvl=notice_display&id= [article]Exemplaires
Cote Support Localisation Section Disponibilité aucun exemplaire