Suddenly I stood up and my vision went black

In daily life, many people will probably encounter such a thing, that is, when they suddenly stand up, their eyes become black. When many people encounter this kind of thing, they will not take it too seriously and just think that it may be caused by indirect anemia due to squatting for a long time. However, there are many reasons that lead to blacking in front of the eyes when you suddenly stand up. Regardless of whether it is serious or not, the best choice is to solve it as soon as possible. Here are some reasons that affect the blacking in front of the eyes when you suddenly stand up.

One reason

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.

2. Inspection

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: elderly people who are bedridden for a long time and have 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 becomes dark in front of your eyes when it gets dark, and you can’t even 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.

3. Differential diagnosis

Symptoms of blackouts and confusion

Purple smoke in front of eyes: The so-called purple vision refers to the feeling of purple smoke in front of eyes, which is more common in people with retinal choroidal lesions. In addition, purple vision is also an early symptom of marijuana poisoning.

Sparks or flashes in front of the eyes: Sparks or flashes in front of the eyes are clinical diagnostic symptoms of temporal arteritis. Temporal arteritis, also known as cranial arteritis, is named after the anatomical location. It is an inflammation of large and medium-sized arteries that can affect arteries in multiple locations, but all involve damage to the temporal artery. Clinically, it is characterized by headache, fever, eye pain, body pain, and progressive visual impairment or even blindness. This disease is closely related to polymyalgia rheumatica.

Dark shadows in front of eyes: The main symptom of vitreous opacities is dark shadows in front of eyes. The shapes vary, and the impact on vision varies depending on the location and degree of opacity.

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: elderly people who are bedridden for a long time and have 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.