12 Symptoms And Early Warning Signs Of B12 Deficiency (Don’t Ignore)

Disturbed Vision

Disturbed vision or vision disturbance interferes with normal eyesight. Specialists say several visual disturbances can occur: double vision or diplopia, color blindness, partial or total blindness, halos, pain, or blurred vision. Doctors also characterize visual disturbance when people experience short bursts of flashing or shimmering light that last from 20 minutes before vision returns to normal. 

Visual disturbance can signify a heightened risk of glaucoma, stroke, or other cardiac conditions. Several cases have been recorded where the patient presents visual disturbances and presents iron deficiency anemia as one of the many pre-existing and underlying conditions upon analysis of pertinent medical history. Furthermore, some doctors also say that some female patients also report the incidence of heavy menstrual flow before vision disturbance episodes which they say can have triggered an anemic-related response.

Doctors also point to tumors, macular degeneration, cataracts, diabetes, and optic nerve problems as other possible causes of disturbed vision. However, research also states that anemia may play a significant part in the development of disturbed vision because of malfunctioning red blood cells. Furthermore, doctors also don’t discount the possibility that the damage to the optic nerve can be caused by B12 deficiency.