[Evaluation of corneal tissue by slit lamp and specular microscopy during the preservation period].

Purpose: To analyze changes evaluation of corneal grafts by slit lamp and electron microscopy examination in order to ensure a donor cornea of good quality level for the patient.

Methods: 203 corneas donated to the Sorocaba Eye Bank between September 2002 and February 2003 were prospectively evaluated. The evaluation was graded from 0 to 3 according to the following factors: exposure and epithelial damage, stromal opacity, Descemet folds, pleomorphism, polymegatism and guttata, endothelial snail track, edema, reflectivity.