Many people feel dizzy and their eyes are black when they are exercised. They sit on the ground and rest for a while and can quickly relieve it. At first, this situation is relieved because it can be relieved, but they don’t know that it will affect their health over time.
suddenly turned black in front of the eyes, which is medically called transient blackness. The essence of blackness is the temporary loss of vision in the eyes, disappearing or weakening. So what is the cause of this situation? What are the effects on the body? Let’s learn about it together below.
1
First understand what transient blackness is?
Transient blackness refers to sudden loss of vision in both eyes or single eyes, blackness in front of the eyes, unclear vision, and unclear vision. It is also clinically called transient vision loss, which can be caused by carotid artery disease and vascular diseases.
. Carotid artery disease: carotid dissection aneurysms, atherosclerotic plaques, severe carotid artery stenosis and other diseases can lead to embolisms in the blood vessels. The retinal artery that moves with the blood flow or ocular artery can lead to vision loss. Some of the lost embolisms will move to the distal artery, which will cause embolism to appear in the distal artery.
partial embolization will soon occur in autolysis of , resulting in typical transient blackness. Transient blackness caused by carotid artery disease is relatively serious. It is possible that cerebral infarction may occur in the brain, or cerebral embolism. You should go to the hospital for a craniocerebral CT examination in time to clarify the blockage or embolization site.
. Cerebrovascular disease: After the onset of hypertension, the blood pressure in the brain will fluctuate too much, which will lead to transient blood supply in the distal end of the posterior cerebral artery or the ocular artery, resulting in transient blackness. Patients with hypertension should take medication on time in daily life and measure their blood pressure regularly to prevent the increase of blood pressure.
2
Suddenly dizzy, my eyes turned black, and I could recover after resting. What's going on? What impact does it have on the body?
patients experience dizziness and black eyes, which may be related to anemia orthostatic hypotension, lack of sleep, transient cerebral ischemia attack , etc., and should be analyzed in clinical practice based on the specific situation.
. Anemia: In clinical practice, iron deficiency anemia is the most common. You can eat more foods rich in protein , iron and vitamins, such as pork liver, egg yolks, lean meat, milk, etc. If necessary, supplement iron under the guidance of a doctor.
. Orthostatic hypotension: It is more common in patients who have been squatting for a long time or are bedridden for a long time. Due to sudden changes in position, the blood cannot meet the needs of the brain. Therefore, when getting up or standing, the speed should be slow. Do not move too hard or too fast. It is best to exercise physically to enhance your physical fitness. When getting up and standing in a squatting position, you should move slowly, and don’t be anxious.
3. Deficiency of sleep: You should develop good routines, sleep regularly, and get up to ensure adequate sleep time. You can also drink milk before going to bed to improve sleep treatment. If you have a lot of pressure in life or work recently, you can relieve your own pressure through exercise, listening to music, watching movies, etc. and keep your mood comfortable. If the symptoms cannot be relieved, it is recommended to seek medical treatment in time.
4. Transient cerebral ischemia attack: As you age, cerebral blood vessels will appear to be stenosis to varying degrees, which will lead to the occurrence of diseases such as insufficient blood supply to . Repeated attacks will increase the incidence of cerebral infarction. Therefore, if you repeatedly experience symptoms such as dizziness and blackness in front of you, you should go to the hospital as soon as possible and treat it under the guidance of a doctor.
3
In front of you, you will be black, and you will be squatted down and rescued yourself immediately
In order to avoid sudden fainting, causing severe injuries such as intracranial hemorrhage, suffocation and fractures, you may as well use the squat to protect yourself when your eyes are black.
. Increase blood supply to the brain: When squatting, the muscles of both legs squeeze the arteriovenous veins of both lower limbs. Arterial contraction leads to a decrease in blood supply to the lower limbs, thereby increasing the blood supply to the brain, rapidly alleviating the symptoms of temporary cerebral ischemia, and venous contraction accelerates blood flow to the lower limbs, increasing the amount of blood back to the heart, and further increasing blood supply to the brain.
. Avoid serious fall injuries: Squatting in time will cause a decrease in the center of gravity. Even if fainting causes loss of consciousness, it will not cause excessively serious fall injuries. If conditions permit, you can lie flat or raise your legs to increase blood supply to the brain. When you feel better, you can stand up slowly. If symptoms appear again during the process, you must return to your previous posture.
4
extension- Will cerebral ischemia cause blackening and dizziness in front of your eyes?
cerebral ischemia is divided into acute cerebral ischemia and chronic cerebral ischemia. The details are as follows:
. Acute cerebral ischemia: including transient ischemia attacks and cerebral infarction . A short-term cerebral ischemia attacks will suddenly appear headaches, dizziness, black eyes, diplopia , unclear speech, weak limb movements on one side, some people will relieve it quickly, and some people will eventually develop cerebral infarction.
. Chronic cerebral blood supply, clinically we are common is lacunar cerebral infarction, which is manifested as long-term numbness or weakness of one limb. Some of them can cause cerebral white matter lesions. Chronic cerebral insufficient blood supply for a long time will lead to unstable walking, poor speech, and even cognitive dysfunction, memory loss, poor ability to do things and execute things.
