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Q Vitamin B12 deficiency causes ?
A. Centrocaecal scotoma
B. Binasal hemianopia
C. Constriction of peripheral field
D. Bitemporal hemianopia

Explanation
Correct Answer - A
Ans., A. Centrocaecal scotoma
Vitamin B12 deficiency causes optic neuritis.
Most common visual field defect in optic neuritis is central or
centrocaecal scotoma.