Effects of a Novel Push-through Technique Using the Implantable Collamer Lens Injector System for Graft Delivery during Endothelial Keratoplasty
Korean Journal of Ophthalmology
;
: 87-92, 2013.
Article
Dans Anglais
| WPRIM
| ID: wpr-143913
ABSTRACT
PURPOSE:
To investigate effects of a new push-through insertion method for donor lenticules using an injector system on endothelial viability ex vivo and in a clinical case series of endothelial keratoplasty.METHODS:
An ex vivo delivery model was used with porcine corneoscleral rims. We compared the endothelial viability in a new push-through insertion method using the Visian Implantable Collamer Lens (ICL) injector versus that of standard forceps-assisted insertion for lenticule delivery. Twenty porcine corneal lenticules were divided into four groups by insertion method and wound size. Vital dye staining was performed and devitalized areas were semi-quantitatively assessed by digital imaging. In the clinical case series, Descemet's stripping endothelial keratoplasty (DSEK) using the push-through method was performed in seven patients and endothelial outcome was determined six months postoperatively.RESULTS:
Mean devitalized areas for the push-through method were significantly lower than for forceps-assisted insertion through 3.2 mm incision (23.99 +/- 2.17% vs. 50.48 +/- 5.07%, p = 0.009) in the ex vivo model. Average endothelial cell counts of donor tissues of patients who underwent DSEK were 26.4% lower six months postoperatively.CONCLUSIONS:
Push-through delivery of donor lenticules using the Visian ICL injector system appears to be less harmful to endothelial cells than conventional forceps-assisted delivery.
Texte intégral:
Disponible
Indice:
WPRIM (Pacifique occidental)
Sujet Principal:
Complications postopératoires
/
Conception de prothèse
/
Suidae
/
Pose d'implant intraoculaire
/
Modèles animaux
/
Perte de cellules endothéliales cornéennes
/
Kératoplastie endothéliale automatisée par le stripping de Descemet
/
Lentilles intraoculaires
Limites du sujet:
Animaux
langue:
Anglais
Texte intégral:
Korean Journal of Ophthalmology
Année:
2013
Type:
Article
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