Blind headache is a medical term referring to a specific type of headache known as a migraine aura without headache or an acephalgic migraine.
A blind headache is characterized by the presence of visual disturbances or aura that are commonly associated with a migraine, such as flashing lights, zigzag lines, or blind spots, but without the subsequent headache pain. The visual symptoms typically last between 20 minutes and an hour and usually affect one eye or both eyes. In some cases, these visual disturbances may be accompanied by other non-painful neurological symptoms, including tingling sensations in the face or hands, difficulty speaking, or weakness of the limbs.
The term "blind" is used to describe these headaches because the visual disturbances can create temporary vision loss or partial blindness in one or both eyes. It is important to note that blind headaches may occur in individuals who have a history of migraines with accompanying headaches, but the headache component is absent during these episodes.
The exact cause of blind headaches is still not fully understood; however, they are hypothesized to occur as a result of the same underlying mechanisms that trigger migraines. These mechanisms involve changes in the blood vessels and abnormal brain activity. Certain triggers, such as stress, hormonal changes, certain foods, or sensory stimuli, may precipitate blind headaches in susceptible individuals.
Blind headaches are typically transient and benign, but they can be distressing and affect daily activities due to their visual disturbances. Medical attention may be necessary to rule out other potential causes of the symptoms and to develop an appropriate management plan.
