Why do my eyes go black sometimes?

You may feel that you have no symptoms, but suddenly your eyes may go dark. This sudden darkening is caused by a change in your body position. Because it happens suddenly, your blood pressure may drop or rise suddenly, causing blackening of the eyes. These symptoms are rarely seen in young people. They are mostly seen in the elderly. Patients with certain tumors or anemia are also prone to this symptom.

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Causes of black spots in front of eyes

The main reasons for this are as follows:

1. When a person's body position changes, it will cause positional hypotension and blackness in front of the eyes;

2. Transient ischemic attack caused by cardiovascular and cerebrovascular diseases can also cause blackness in front of the eyes;

3. Some brain tumors may also cause temporary blackening of the eyes.

4. It is also possible that you have anemia, and you may often experience blackouts and feel like you are about to faint.

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Black spot diagnosis

1. Postural hypotension is caused by a sudden drop in blood pressure of more than 20 mmHg when the patient changes from a lying position to a sitting or upright position, or stands for a long time, accompanied by obvious symptoms, including dizziness, blurred vision, fatigue, nausea, cognitive dysfunction, palpitations, and neck and back pain. Postural hypotension is related to many diseases, such as multiple system atrophy, diabetes, Parkinson's disease, multiple sclerosis, menopausal disorders, hemodialysis, surgical sequelae, anesthesia, antihypertensive drugs, diuretics, hypnotics, antipsychotics, etc., or other conditions such as: long-term bedridden elderly people with weak constitution.

2. If you experience black spots in front of your eyes accompanied by paralysis or weakness of one side of your limbs, severe headache, vomiting, etc., you should be highly alert, as this is often a sign of internal strife in the brain, the command center of the human body, and you should go to the hospital promptly for treatment.

3. If everything in front of your eyes becomes dark when it gets dark, and you can’t see anything clearly, this is night blindness. This disease is mostly caused by a condition called congenital retinitis pigmentosa, followed by vitamin A deficiency due to malnutrition or picky eating.