Black eyes

Introduction When we suddenly stand up from the position, we will feel black in front of us, and Venus will be mad. Some people will feel as if they have anemia. In fact, this is a normal physiological response caused by a sudden change in the body position causing hypotension. In addition, when people are subjected to sudden emotional blows and extreme hunger, they may also appear black. These problems are not very big, the terrible thing is that the eyes are black with other corresponding symptoms.

Cause

The cause of blackness in front of the eyes:

There are mainly the following reasons:

1. When the person's position changes, it will cause positional hypotension, resulting in black eyes.

2. Transient ischemic attacks caused by cardiovascular and cerebrovascular diseases may also be black.

3. Some brain tumors may also develop blackness in front of the eyes.

4. It may be that you are anaemic, and you will often feel black and faint.

an examination

Related inspection

Ophthalmologic examination fundus examination plasma methemoglobin

Black check diagnosis:

1. Orthostatic hypotension, because the patient suddenly falls from a lying position to a sitting position or an upright position, or a long-term standing blood pressure suddenly drops more than 20mmHg, accompanied by obvious symptoms, including: dizziness, dizziness, blurred vision, Weakness, nausea, cognitive dysfunction, palpitations, neck and back pain. Orthostatic hypotension is associated with a variety of diseases such as multiple system atrophy, diabetes, Parkinson's disease, multiple sclerosis, menopausal disorders, hemodialysis, surgical sequelae, anesthesia, antihypertensives, diuretics, hypnotics, antipsychotics Depressive medicine, etc., or other such as: a long-term illness in bed, the elderly with weak constitution.

2. In front of the black with a limb paralysis or weakness, severe headache, vomiting, etc., it should be highly vigilant, often the brain "the headquarters" has appeared "internal disorder", should go to the hospital in time.

3. If you are dim in front of darkness, you can't even see anything. This is night blindness. This disease is caused by a condition called congenital retinitis pigmentosa, followed by vitamin A deficiency caused by malnutrition or partial eclipse.

Differential diagnosis

Symptoms of black confusion before the eyes:

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

Sparks in front of your eyes or flashes in front of your eyes: sparks in front of your eyes or flashing in front of your eyes are clinically diagnosed symptoms of temporal arteritis. Temporal arteritis, also known as cranial arteritis, is named after the anatomy. It is a kind of inflammation of the large and middle arteries, which can involve arteries in multiple sites, but all have radial artery damage. Clinically it is characterized by headache, fever, eye pain, generalized pain and progressive visual impairment or even blindness. The disease is closely related to rheumatic polymyalgia.

Black shadow in front of the eyes: The main symptom of vitreous opacity is that there are dark shadows in front of the eyes, and the shape is different. The influence on vision varies depending on the location and degree of opacity.

1. Orthostatic hypotension, because the patient suddenly falls from a lying position to a sitting position or an upright position, or a long-term standing blood pressure suddenly drops more than 20mmHg, accompanied by obvious symptoms, including: dizziness, dizziness, blurred vision, Weakness, nausea, cognitive dysfunction, palpitations, neck and back pain. Orthostatic hypotension is associated with a variety of diseases such as multiple system atrophy, diabetes, Parkinson's disease, multiple sclerosis, menopausal disorders, hemodialysis, surgical sequelae, anesthesia, antihypertensives, diuretics, hypnotics, antipsychotics Depressive medicine, etc., or other such as: a long-term illness in bed, the elderly with weak constitution.

2. In front of the black with a limb paralysis or weakness, severe headache, vomiting, etc., it should be highly vigilant, often the brain "the headquarters" has appeared "internal disorder", should go to the hospital in time.

3. If you are dim in front of darkness, you can't even see anything. This is night blindness. This disease is caused by a condition called congenital retinitis pigmentosa, followed by vitamin A deficiency caused by malnutrition or partial eclipse.

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