They can be transplanted immediately

corneal preservation -They can be transplanted immediately or preserved in an eye bank by various preservation techniques for varying intervals

Short term preservation

In a moist chamber or Mccarey kaufman
medium
Refrigerated at 2-8’c

Cornea to be used within 48hrs to 72hrs

Intermediate-term preservation

In medium containing chondroitin sulfate

Refrigerated at -8’C for 7 to 14 days

Or maintainted at 37’C by organ culture

Using modified eagle medium extends this to 30 days

Long term preservation

By cryopreservation in liquid nitrogen or in glycerol

Is up to 1 year

Loss of transparency of the tissue is a disadvantage.