I have been experiencing blurry vision. I have been examined by an eye specialist many times, and there is nothing wrong with my eyes. The blurring occurs in one eye for 15 to 20 minutes only, but I can still see things with blurring. After the blurring, I always get a headache.
I had a blood examination for vitamin D, vitamin B12, and ferritin. And I was diagnosed to have iron deficiency.
I have attached my blood test results.