A partir de cette page vous pouvez :
Retourner au premier écran avec les dernières notices... |
Descripteurs (mots clés)
Ajouter le résultat dans votre panier Affiner la recherche
Etendre la recherche sur niveau(x) vers le bas
Case Series: Application of Topography-guided Contoura Refractive Surgery in Highly Irregular Cornea / Xiangjun Wang in OVS : Optometry & Vision Science, vol. 98, 06 (Juin 2012)
[article]
in OVS : Optometry & Vision Science > vol. 98, 06 (Juin 2012)
Titre : Case Series: Application of Topography-guided Contoura Refractive Surgery in Highly Irregular Cornea Type de document : article de périodique Auteurs : Xiangjun Wang ; Wenwen Xu ; Yanyun Xu ; Chuanyu Wang ; Guoying Mu Année de publication : 2021 Langues : Français (fre) Descripteurs (mots clés) : [Thésaurus Mesh]:C:Cornée:Cornée / chirurgie
[Thésaurus Mesh]Cornée
[Thésaurus Mesh]Éblouissement
[Thésaurus Mesh]Procédures de chirurgie réfractive
[Thésaurus Mesh]Topographie cornéenne
[Thésaurus Mesh]Troubles de la visionMots-clés : Cornée irrégulière Résumé : SIGNIFICANCE: Highly irregular cornea leads to poor vision, glare, and starbursts. Although treatment is still at the exploration stage, topography-guided Contoura surgery has excellent potential for the treatment of highly irregular corneas. PURPOSE: This case series reviews three patients (one with abnormal back elevation, one with corneal scar after fungal keratitis, and one with post–laser-assisted in situ keratomileusis central islands) treated with topography-guided Contoura surgery. CASE REPORTS: In case 1, a 19-year-old man underwent topography-guided Contoura refractive surgery in the left eye and wavefront-optimized ablation in the right eye. Post-operative topography of the right eye showed marked inferior steepening and central irregular astigmatism compared with the contralateral eye. In case 2, a 53-yearold man presented with corneal scarring on the right eye after recovering from fungal keratitis. The patient first underwent phototherapeutic keratectomy and photorefractive keratectomy to remove the scarring primarily. He then underwent Contoura to correct hyperopia, which flattened the cornea and improved his vision significantly. In case 3, a 25-year-old man presented with central steepening on topography maps after undergoing laser-assisted in situ keratomileusis. He underwent topography-guided ablation, which improved his visual acuity and normalized the cornea. CONCLUSIONS: Therapy for highly irregular corneas includes wavefront-guided surgery, conservative treatment, corneal transplantation, rigid gas-permeable lenses, and so on. In this case series, topography-guided Contoura refractive surgery provided an excellent option for reducing topographic abnormalities and improving vision. 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 Effect of Laser-assisted Subepithelial Keratectomy with Mitomycin C on Corneal Optical Density Measured with Confocal Microscopy / Pilar Cañadas in OVS : Optometry & Vision Science, vol. 98, 04 (Avril 2021)
[article]
in OVS : Optometry & Vision Science > vol. 98, 04 (Avril 2021)
Titre : Effect of Laser-assisted Subepithelial Keratectomy with Mitomycin C on Corneal Optical Density Measured with Confocal Microscopy Type de document : article de périodique Auteurs : Pilar Cañadas ; Montserrat Garcia-Gonzalez ; Juan Gros-Otero ; Maria Isabel Alonso Perez ; Rafael Cañones-Zafra ; Miguel A. Teus Année de publication : 2021 Langues : Français (fre) Descripteurs (mots clés) : [Thésaurus Mesh]:C:Cornée:Cornée / chirurgie
[Thésaurus Mesh]Cornée
[Thésaurus Mesh]Kératectomie sous-épithéliale assistée par laser
[Thésaurus Mesh]Microscopie confocaleMots-clés : densité optique cornéenne Résumé : SIGNIFICANCE: The development of confocal microscopy allows one to obtain high-resolution corneal images like
its optical density. Some studies have evaluated the optical density with Scheimpflug cameras in the early
post-operative period after photorefractive keratectomy, but no studies have evaluated the long-term evolution of
optical density after surface ablation when mitomycin C is used.
PURPOSE: This work aimed to study the changes in corneal optical density measured with confocal microscopy in
eyes treated with laser-assisted subepithelial keratectomy (LASEK) and intraoperative mitomycin C (MMC) to
correct myopia.
METHODS: A study of 24 consecutive myopic eyes that underwent LASEK with 0.02% MMC and a control group of
24 healthy nontreated eyes was performed. Optical density was measured using the images by the confocal microscopy
of the Heidelberg Retina Tomograph II with the Rostock Cornea Module. An analysis of confocal microscopy images was
performed using the ImageJ software to obtain the optical density, in gray-scale units (GSU). The optical density of the
stromal bed was evaluated 3 months, 15 months, and 3 years after surgery and was compared with the optical density at
the equivalent depth of the stroma in controls.
RESULTS: The mean values of optical density for the LASEK group were 81.7 ± 9.7, 78.6 ± 11.7, and
73.6 ± 18.7 GSU at 3 months, 15 months, and 3 years, respectively, and it was 61.8 ± 8.2 GSU for the control
group. A statistically higher optical density 3 and 15 months after LASEK with MMC was found compared with controls (P < .001). No significant difference was found in optical density at 3 years post-operatively.
CONCLUSIONS: Our study suggests that, after LASEK with MMC, the anterior corneal stroma has a higher optical
density at 3 and 15 months post-operatively, which gradually returns to normal values 3 years after surgery.Permalink : https://bibliotheque.helb-prigogine.be/opac_css/index.php?lvl=notice_display&id= [article]Exemplaires
Cote Support Localisation Section Disponibilité aucun exemplaire