Abstract

P 215

Endothelial cell count following femtosecond laser assisted penetrating keratoplasty

Holzer M. P., Sanchez M. J., Ehmer A., Naqadan F., Auffarth G. U.
International Vision Correction Research Centre (IVCRC), Universitäts-Augenklinik Heidelberg

Objective: To investigate endothelial cell count changes following femtosecond laser assisted penetrating keratoplasty.
Methods: Eleven eyes of ten patients underwent uneventful penetrating keratoplasty using the Femtec femtosecond laser (20/10 Perfect Vision, Germany). Endothelial cell count was performed on the corneal donor buttons prior to surgery. All patients were examined following a standard postoperative scheme which includes endothelial cell count measurements 12 months postoperatively using a Tomey EM-1200 specular microscope (Tomey, Germany).
Results: The preoperative cell counts for the corneal buttons ranged between 2300 and 2750 cells/mm². Twelve months postoperatively all corneal transplants were clear and visual acuity improved from preoperative levels. The endothelial cell counts ranged between 1350 and 2100 cells/mm². The median cell loss was at 35.94%.
Conclusions: Twelve months follow-up of penetrating keratoplasty using a femtosecond laser revealed good surgical outcomes with endothelial cell loss numbers in a similar percentage range than reported in the peer-reviewed literature for penetrating keratoplasty using conventional trephines.

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