Ophthalmic Research Center;
Labbafinejad Medical Center;
Shahid Beheshti University of Medical Sciences;
Tehran 16666;
Iran;
Corneal transplantation; Penetrating keratoplasty; Full-thickness keratoplasty; Deep anterior lamellar keratoplasty; Deep lamellar keratoplasty; Maximum depth anterior lamellar keratoplasty; Donor corneal quality; Graft quality;