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
Sudden increase in blood sugar in a diabetic causes 
Select and explain. 
A. Myopia, B. Hypermetropia, C. Presbyopia, D. Anisometropia
A: Myopia
Answer: A: Myopia 
Explanation: Ans. Myopia