Corneal transplantation of all kinds are performed at the Ammar Eye Specialist Center and these corneas are human tissue that we obtain only from the International Eye Bank in the United States of America with a certified certificate that is free of any infectious diseases that can be transmitted to the patient after the transplant and with all the details about the donor and the date and time of the corneal eradication of the deceased It can be used within fourteen days and it is preserved with a special and sterile preservative solution. It should be noted here that there is no need to perform tissue compatibility analyzes between the patient and the donor, unlike any other transplantation of the body, such as the kidneys and liver, due to the absence of blood vessels in the cornea.