Minnesota system corneal preservation.

Preservation of Corneal Grafts by Freezing.

K-Sol corneal preservation at room temperature.

K-Sol, a recently developed corneal storage medium that contains purified chondroitin sulphate in tissue culture medium (TC 199), is capable of preserving corneal tissue for 14 days at 4 degrees C. To study the effect of tissue storage in K-Sol at room temperature we preserved rabbit corneas in K-Sol and M-K medium for three or seven days at 25 degrees C. All of the corneal endothelial sheets w...

Organ culture preservation for corneal tissue. Technical and quality aspects.

INTRODUCTION The technical and quality aspects of organ culture as a storage method for human donor corneas are described. MATERIALS AND METHODS Data electronically stored since 1989 of > 41,000 corneas, processed in the Cornea Bank Amsterdam, are analysed. The technical information of eye banks collected in the Directory of the European Eye Bank Association (EEBA) is used as comparison. Euro...

Effect of death-to-preservation time on donor corneal epithelium.

PURPOSE Surface disease is one of multiple variables affecting the quality of the postkeratoplasty donor cornea. Trauma to Bowman's layer before and during harvesting can denude the donor epithelium and result in epithelial defects in the donor following penetrating keratoplasty. Eye banks use death-to-preservation (DP) time intervals as long as 18 hours. This study evaluates the effects of hig...

Towards a Semantic Preservation System

This document discusses the status of the Defuddle parser and recent work conducted as part of the “Innovative Systems and Software: Applications to NARA Research Problems” project. Preserving access to file content requires preserving not just bits but also meaningful logical structures. The ongoing development of the Data Format Description Language (DFDL) is a completely general standard tha...