Purpose: To evaluate the usability of Eurosol, a new medium-term corneal storage medium without components of bovine origin.
Methods: Ten pairs of human donor corneas were placed in tissue culture at 31 degrees C for 7, 14, 21, 28, or 35 days. One cornea of each pair was cultivated in conventional storage medium on Earls' minimum essential medium base containing 2% fetal bovine serum; the other one was stored in Eurosol. Corneas were examined with inverse light microscopy; corneal thickness was measured; and scanning electron microscopy was performed.
Results: No significant difference in corneal thickness and endothelial cell count was found at any time. Scanning electron microscopy showed a complete endothelial cell layer on all corneas. CONCLUSION. The findings indicate a potential clinical applicability of the tested serum-free medium-term storage medium, offering a safer alternative to conventional media containing fetal bovine serum.
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