This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Cornea, Subject name: Ophthalmology
Which of the following statements regarding corneal transplantation is true? 
Select and explain. 
A. Whole eye needs to be preserved in tissue culture, B. Donor not accepted if age > 60 years, C. Specular microscopy analysis is used to assess endothelial cell count, D. HLA matching is mandatory
C: Specular microscopy analysis is used to assess endothelial cell count
Answer: C: Specular microscopy analysis is used to assess endothelial cell count 
Explanation: Ans. (c) Specular microscopy analysis is used to assess endothelial cell countRef: Textbook of Ophthalmology by Sunita Agarwal (Jaypee) Is'* Corneoscleral button needs to be preserved, though whole eye can also be preserved.* Age is not a criteria for donor eye.* HLA matching is not mandatory as the cornea is immunologicaly previliged.