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
If the length of eyeball increases by 1 mm. The net effect will be: September 2007 
Select and explain. 
A. Myopia of 6D, B. Hypermetropia of 6D, C. Myopia of 3D, D. Hypermetropia of 3D
C: Myopia of 3D
Answer: C: Myopia of 3D 
Explanation: Ans. C: Myopia of 3D