This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Ophthalmology
During IOL implantation, corneal endothelial damage can be prevented by use of: 
Select and explain. 
A. Methyl cellulose, B. Sodium hyaluronate, C. Chondroitin sulfate, D. All of the above
D: All of the above
Answer: D: All of the above 
Explanation: Ans. All of the above