Medical Video: 6 Warning Signs a Stroke Is Coming
Have you ever suddenly lost sight, aka experiencing blindness even if only for a moment? Even though it's only temporary and your vision returns again in a few moments, of course this incident can make you panic. In this discussion, four of the most frequent causes will be explained why you can suddenly lose sight. Look carefully, huh.
The cause of sudden vision loss
Papilledema is a condition of swelling in the nerve region of the eye. Papiledema can occur due to increased pressure on the head.
Vision loss or blindness will occur in both eyes simultaneously. Often this momentary loss of vision is accompanied by a headache. Fortunately, this usually only happens in seconds. After that your vision will return.
An MRI scan is one of the supporting tests that will be carried out to help find out the cause of the increase in pressure on the head.
2. Amaurosis fugax
The loss of vision in one eye without accompanied by pain that occurs in seconds to minutes is a characteristic of this condition. Amaurosis fugax is more common in those over 50 years with a history of diseases such as diabetes, high blood pressure (hypertension), and impaired cholesterol profile (hyperlipidemia).
The most common cause of this condition is blockage of blood vessels in the retinal area. In some cases, especially for those of you who experience vision loss for more than 90 minutes, the blockage can persist and vision loss can occur permanently. Investigation using CT scans can be done to assess the state of other brain vessels.
3. Arterial insufficiency in the brain (vertebrobasiler insufficiency)
Sudden reduction of vision in both eyes which occurs repeatedly without pain is a characteristic of this condition. Not much different from amarousis fugax, this condition is also more common in those of you who have certain diseases.
Investigation of MRA (magnetic resonance angiography) may need to be done besides CT scans. This examination is useful for viewing blood supply to areas behind the brain (occipital), brain stem, and cerebellum. Disruption of blood flow that occurs in those areas that might cause sudden loss of vision in both eyes.
Temporary vision loss (between 10-60 minutes) may soon be followed by severe headache on one side (migraine). This incident will repeat every time a migraine attack comes. Migraines like this are commonly known as migraines with aura.
The loss of vision in such a situation is not too worrying. Because the vision will return to perfect after a migraine attack can be overcome.
However, never underestimate the loss of your vision even if only temporarily. Immediately consult your nearest eye specialist to make sure there are no significant problems with your eyes or blood vessels as a whole.