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  Indian J Med Microbiol
 

Figure 5: Vitamin B12 deficiency optic neuropathy. (a) Fundus photographs demonstrated temporal pallor of the optic nerves. (b) Optical coherence tomography showed temporal retinal nerve fiber layer thinning. (c) Optical coherence tomography of the ganglion cell–inner plexiform layer showed diffuse thinning

Figure 5: Vitamin B12 deficiency optic neuropathy. (a) Fundus photographs demonstrated temporal pallor of the optic nerves. (b) Optical coherence tomography showed temporal retinal nerve fiber layer thinning. (c) Optical coherence tomography of the ganglion cell–inner plexiform layer showed diffuse thinning