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Case Report: Acute Corneal Hydrops despite Accelerated Transepithelial Corneal Cross-linking / Jay J. Meyer in OVS : Optometry & Vision Science, vol.99, 05 (Mai 2022)
[article]
in OVS : Optometry & Vision Science > vol.99, 05 (Mai 2022)
Titre : Case Report: Acute Corneal Hydrops despite Accelerated Transepithelial Corneal Cross-linking Type de document : article de périodique Auteurs : Jay J. Meyer ; Akilesh Gokul Année de publication : 2022 Langues : Anglais (eng) Descripteurs (mots clés) : [Thésaurus Mesh]:K:Kératocône:Kératocône / thérapie
[Thésaurus Mesh]KératocôneMots-clés : réticulation cornéenne hydrops cornéen aigu hydrops cornéen aigu/prévention et contrôle Résumé : SIGNIFICANCE: Corneal cross-linking is a well-established treatment to reduce or halt the progression of keratoconus.
This case demonstrates that acute corneal hydrops may develop several years after corneal cross-linking even despite apparent treatment effect with corneal flattening, and patients should be monitored accordingly.
PURPOSE: This study aimed to describe a case of continued progression in the form of corneal hydrops despite prior corneal cross-linking and evidence of treatment effect.
CASE REPORT: A 19-year-old woman underwent bilateral accelerated transepithelial corneal cross-linking for progressive keratoconus. At 2 years after the procedure, significant flattening of the central cornea of >3 D was measured in the left eye, indicating a significant treatment response, although continued thinning was noted on tomography. At
3.5 years after the procedure, this eye developed acute corneal hydrops with subsequent corneal scarring necessitating corneal transplantation.
CONCLUSIONS: Patients should continue to be monitored for several years after corneal cross-linking, and retreatment should be considered if there is progressive corneal thinning.2Note 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 Corneal Confocal Analysis after Scleral Lens Wear in Keratoconus Patients: A Pilot Study / Maria Serramito-Blanco in OVS : Optometry & Vision Science, vol. 99, 11 (Novembre 2022)
[article]
in OVS : Optometry & Vision Science > vol. 99, 11 (Novembre 2022)
Titre : Corneal Confocal Analysis after Scleral Lens Wear in Keratoconus Patients: A Pilot Study Type de document : article de périodique Auteurs : Maria Serramito-Blanco ; Pilar Cañadas ; Cesar Villa-Collar ; Gonzalo Carracedo Année de publication : 2022 Langues : Français (fre) Descripteurs (mots clés) : [Thésaurus Mesh]:K:Kératocône:Kératocône / thérapie
[Thésaurus Mesh]Cornée
[Thésaurus Mesh]Kératocône
[Thésaurus Mesh]Projets pilotes
[Thésaurus HELB]:Optique:lentilles sclérales
[Thésaurus HELB]:Optique:port de lentilles de contactMots-clés : confort Résumé : SIGNIFICANCE: Scleral lenses rely on the scleroconjunctival region without bearing the cornea, which could improve the symptoms and modify the corneal nerve plexus morphology. PURPOSE: This study aimed to evaluate symptoms and changes in corneal nerve plexus morphology and density of Langerhans cells in keratoconus patients with and without intrastromal corneal ring before and after scleral lens wear. METHODS: Sixteen scleral lens wearers with keratoconus were recruited for this short-term experimental pilot study. Subjects were divided into two groups: keratoconus group and intrastromal corneal ring segment group. All subjects were examined in two visits: baseline (before scleral lens wear) and after 6 months of scleral lens wear, after lens removal. The Schirmer I test, the Ocular Surface Disease Index, tear breakup time, and in vivo confocal microscopy were evaluated. RESULTS: The mean age was 42.33 ± 11.27 years. A significant decrease in tear breakup time was found in the total group ( P = .01, Wilcoxon) compared with baseline. Ocular Surface Disease Index score had decreased after 6 months of scleral lens wear in the keratoconus with intrastromal corneal ring segment subgroup ( P = .03, Wilcoxon) and in the total group ( P = .001, Wilcoxon). No statistical changes in nerve density, tortuosity, and ramification were found for either the total group or the subgroup. However, the mean nerve length was higher in all groups, especially in the keratoconus subgroup ( P = .03, Wilcoxon) after 6 months of scleral lens wear. Regarding optical density, the total group showed a significant increase after 6 months of wearing ( P = .02, Wilcoxon). Finally, Langerhans cell density was not statistically different in any group. CONCLUSIONS: These results suggest that scleral lens wearing improves the symptoms and increased the mean length nerves after 6 months of wear use in keratoconus patients. Permalink : https://bibliotheque.helb-prigogine.be/opac_css/index.php?lvl=notice_display&id= [article]Exemplaires
Cote Support Localisation Section Disponibilité aucun exemplaire Correction of Ocular Aberrations with Prismatic Rigid Gas-permeable Contact Lenses in Keratoconic Eyes / Jesus Carballo-Alvarez in OVS : Optometry & Vision Science, vol. 98, 11 (Novembre 2021)
[article]
in OVS : Optometry & Vision Science > vol. 98, 11 (Novembre 2021)
Titre : Correction of Ocular Aberrations with Prismatic Rigid Gas-permeable Contact Lenses in Keratoconic Eyes Type de document : article de périodique Auteurs : Jesus Carballo-Alvarez ; Elena Caballero-Magro ; Irene Cortes-Escudero ; Carlos Carpena-Torres Année de publication : 2021 Langues : Français (fre) Descripteurs (mots clés) : [Thésaurus Mesh]:K:Kératocône:Kératocône / thérapie
[Thésaurus Mesh]Kératocône
[Thésaurus Mesh]Lentilles de contact
[Thésaurus HELB]:Optique:PrismeMots-clés : lentilles de contact rigides perméables aux gaz correction des aberrations oculaires Résumé : SIGNIFICANCE
A base-down prism was incorporated on the anterior surface of rigid gas-permeable (RGP) contact lenses to explore potential effects on the residual ocular aberrations after contact lens fitting in keratoconic eyes.
PURPOSE
This study aimed to evaluate the correction of ocular aberrations with corneal prismatic RGP contact lenses in keratoconic eyes and their impact on visual function.
METHODS
A cross-sectional and randomized study was performed. Seventeen eyes of 17 keratoconus patients (34.6 ± 11.1 years) were evaluated. Two designs (standard and prismatic) of a corneal RGP contact lens (KAKC; Conoptica, Barcelona, Spain) were fitted to the same eye of each patient in a random order: a standard RGP contact lens as control and a prismatic RGP contact lens with a base-down prism of 1.6 prism diopters. Ocular aberrations were measured for a pupil diameter of 3 mm with and without both contact lenses, whereas high-contrast distance visual acuity, low-contrast distance visual acuity, and contrast sensitivity were measured under photopic and mesopic conditions.
RESULTS
Both contact lenses improved oblique primary astigmatism, defocus, vertical coma, coma-like, and root-mean-square higher-order aberrations compared with the unaided eyes (P < .05). Furthermore, the prismatic RGP contact lenses offered lower values of vertical coma and root-mean-square higher-order aberrations than the standard RGP contact lenses (P < .05). Both designs (standard and prismatic) produced a positive vertical coma of lower magnitude than the negative vertical coma of the unaided eyes. On the other hand, the improvement achieved in all visual function variables was the same for both contact lens designs (P ≥ .05).
CONCLUSIONS
The prismatic RGP contact lenses corrected higher levels of higher-order aberrations compared with the standard RGP contact lenses. However, both contact lens designs with the same refractive power were equally efficient at improving visual function.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 Autologous Serum Eye Drops on Corneal Haze after Corneal Cross-linking / Ana M. Roldan in OVS : Optometry & Vision Science, vol. 99, 02 (février 2022)
[article]
in OVS : Optometry & Vision Science > vol. 99, 02 (février 2022)
Titre : Effect of Autologous Serum Eye Drops on Corneal Haze after Corneal Cross-linking Type de document : article de périodique Auteurs : Ana M. Roldan ; Sofia De Arrigunaga ; Joseph B. Ciolino Année de publication : 2022 Langues : Français (fre) Descripteurs (mots clés) : [Thésaurus HELB]:Paramédical:CICATRISATION
[Thésaurus Mesh]:K:Kératocône:Kératocône / chirurgie
[Thésaurus Mesh]:K:Kératocône:Kératocône / thérapie
[Thésaurus Mesh]Cellules épithéliales
[Thésaurus Mesh]Douleur
[Thésaurus Mesh]Gouttes oculaires lubrifiantes
[Thésaurus Mesh]Période postopératoire
[Thésaurus Mesh]Solutions ophtalmiquesMots-clés : réticulation cornéenne gouttes oculaires sériques larmes artificielles vision floue Résumé : SIGNIFICANCE: Corneal haze remains a frequent post-operative finding in patients undergoing corneal crosslinking. It has been shown that autologous serum tears promote epithelial healing and reduce post-operative pain;
however, the role in the prevention of corneal haze has not been reported.
PURPOSE: This study aimed to compare the effect of autologous serum tears versus preservative-free artificial
tears on the prevention and resolution of post–cross-linking corneal haze.
METHODS: A retrospective cohort study was conducted in a sample population from one surgeon at a tertiary eye
center from 2016 to 2019. Seventy-six eyes of consecutive patients who underwent cross-linking were included.
Records were reviewed for corneal Scheimpflug densitometry values and maximum keratometry, epithelial healing
time, and the use of either autologous serum tears or preservative-free artificial tears. Corneal densitometry values,
expressed in standardized grayscale units (GSU), were recorded for the anterior 150-μm corneal stroma and in the
0.0 to 2.0 mm and 2.0 to 6.0 mm zones.
RESULTS: Forty-four eyes received autologous serum tears, whereas 32 eyes received preservative-free artificial
tears. The baseline GSU of the anterior stromal 0 to 2 mm annulus and the 2 to 6 mm annulus did not significantly
differ between groups ( P = .50 and P = .40, respectively). There was a statistically significant increase in mean
GSU for both anterior 0 to 2 mm and 2 to 6 mm zones between baseline and 1 month ( P < .001) and 3 months
( P < .001). When comparing the two groups, no statistically significant difference was found post-operatively between the mean GSU at 1 month for the anterior 0 to 2 mm ( P = .38) nor the 2 to 6 mm zone ( P = .12), or for the
third month ( P = .60 and P = .44, respectively).
CONCLUSIONS: Using Scheimpflug densitometry, we did not find a significant difference in the post–crosslinking corneal haze at 1 and 3 post-operative months between patients who use autologous serum tears and those
who use preservative-free artificial tears.Permalink : https://bibliotheque.helb-prigogine.be/opac_css/index.php?lvl=notice_display&id= [article]Exemplaires
Cote Support Localisation Section Disponibilité aucun exemplaire Keratoconus: considerations, recognition and management with speciality contact lenses / Daddi Fadel in OPTOMETRY TODAY, vol. 62,05 (Octobre - novembre 2022)
[article]
in OPTOMETRY TODAY > vol. 62,05 (Octobre - novembre 2022) . - p. 80-84
Titre : Keratoconus: considerations, recognition and management with speciality contact lenses Type de document : article de périodique Auteurs : Daddi Fadel ; Greg DeNaeyer Année de publication : 2022 Article en page(s) : p. 80-84 Langues : Français (fre) Descripteurs (mots clés) : [Thésaurus Mesh]:K:Kératocône:Kératocône / anatomopathologie
[Thésaurus Mesh]:K:Kératocône:Kératocône / diagnostic
[Thésaurus Mesh]:K:Kératocône:Kératocône / thérapie
[Thésaurus Mesh]Kératocône
[Thésaurus Mesh]Lentilles de contact
[Thésaurus HELB]:Optique:lentilles scléralesMots-clés : système de lentilles piggyback Résumé : This CPD article outlines the clinical presentation of keratoconus and its management with a range of different contact lens options En ligne : https://www.aop.org.uk/ot/cpd/2022/09/30/keratoconus-considerations-recognitions [...] Permalink : https://bibliotheque.helb-prigogine.be/opac_css/index.php?lvl=notice_display&id= [article]Exemplaires
Cote Support Localisation Section Disponibilité OPT Périodique Erasme - périodiques Périodiques Disponible Keratoconus management post-discharge / Marcello Leucci in OPTOMETRY TODAY, vol.59, 2 (Février 2019)
PermalinkPermalinkThe Use of Autologous Serum Eye Drops after Epithelium-off Corneal Collagen Crosslinking / Ahmet Kirgiz in OVS : Optometry & Vision Science, vol. 97,04 (Avril 2020)
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