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
The most common condition of inherited blindness due to mitochondrial chromosomal anomaly is- 
Select and explain. 
A. Retinopathy of prematurity, B. Leber's Hereditary Optic neuropathy, C. Retinitis pigmentosa, D. Retinal detachment
B: Leber's Hereditary Optic neuropathy
Answer: B: Leber's Hereditary Optic neuropathy 
Explanation: Leber's hereditary optic neuropathy is the only condition amongst the options provided that is caused by a mitochondrial chromosomal anomaly and hence is the answer here.