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: Biochemistry
Deficiency of vitamin A causes the following except: 
Select and explain. 
A. Night blindness, B. Corneal dryness, C. Bitot's spots, D. Myopia
D: Myopia
Answer: D: Myopia 
Explanation: None