Photographs of the inside of the cornea that were taken before and nine years after LASIK or PRK found no significant difference in cell loss or morphology of the eye compared to control eyes that had not undergone either procedure.

They also found no relationship between endothelial cell loss and ablation depth or residual bed thickness. They conclude that their data support the current policy of utilizing corneas that have undergone LASIK or PRK for posterior lamellar keratoplasty.

Archives of Ophthalmology, November 2009.