<prompt> Which of the following statements regarding corneal transplantation is trueWhole eye needs to be preserved in tissue cultureDonor not accepted if age 60 yearsSpecular microsocopy analysis is used to assess endothelial cell countHLA matching is mandatory  <response>: C i.e. Specular microsocopy analysis is used to assess endothelial cell count Donor cornea is most commonly preserved as corneal scleral button cornea with 2-3 mm sclera rimQ. HLA matching is not mandatoryQ. Cornea from donors between 5-6070 years age are preferred but the age limits at both ends are arbitraryQ. Specular microscopy Slit lamp examination are most impoant quality control evaluation used to assess endothelial cell count of donor corneaQ. 