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
A young patient presents to the ophthalmology clinic with loss of central vision. ERG is normal but EOG is abnormal. Which of the following is the most likely diagnosis: 
Select and explain. 
A. Stargardt's disease, B. Best's vitelliform dystrophy, C. Retinitis pigmentosa, D. Cone-rod dystrophy
B: Best's vitelliform dystrophy
Answer: B: Best's vitelliform dystrophy 
Explanation: Ans. Best's vitelliform dystrophy