Blurred vision may impact your entire eyesight, or just small parts of your field of vision.
It may also affect just one of your eyes, and can make objects appear clouded.
READ RELATED: DR MICHAEL MOSLEY: How I survived my midlife crisis – and how you can too
But, just because you develop blurry vision, it doesn’t necessarily mean that you have a vitamin B12 deficiency.
Blurred vision could also be caused by cataracts, migraines, or an injury to the eye.
Source: Daily Express