%0 Journal Article %T Vitamin B12 Deficiency as a Cause of Neurotrophic Keratopathy %A Farhad Assarzadegan %A Hamid Norouzi %A Kourosh Sheibani %A Mansoor Shahriari %A Nader Nassiri %A Nariman Nassiri %A Sara Kavousnezhad %J Archive of "The Open Ophthalmology Journal". %D 2018 %R 10.2174/1874364101712010007 %X Neurotrophic keratitis is a rare degenerative corneal disease caused by an impairment of trigeminal corneal innervation, leading to a decrease or absence of corneal sensation. Here, we present a case of neurotrophic keratopathy caused by B12 deficiency in a 34 years old man who had a progressive decrease in visual acuity and corneal involvement since 3 months before being referred to our ophthalmology clinic %K Keratopathy %K Deficiency %K Vitamin %K Neurotrophic %K Vitamin B12 %K Corneal Sensation %U https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5838634/