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Photophobia is caused by the deficiency of

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Q. Photophobia is caused by the deficiency of

A. Vitamin B1
B. Vitamin B2
C. Vitamin B4
D. Vitamin B6

Answer: Vitamin B2

As a medical symptom, photophobia is not a morbid fear or phobia, but an experience of discomfort or pain to the eyes due to light exposure or by the presence of actual physical sensitivity of the eyes, though the term is sometimes additionally applied to abnormal or irrational fear of light such as heliophobia.

There are many causes of photophobia, bad lifestyles are the main reason. Experts say that a vitamin B2 riboflavin deficiency is the one reason why suffer photophobia.

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