There is no such person who at least once in his life did not appear to flicker in his eyes. If this happens rarely, there is no reason to consult a doctor. If flickering in your eyes often disturbs you, you should sound the alarm. This may be the first bell of an impending disease. Why do "midges" appear in the eyes? This may be evidence of high or low blood pressure, vitamin deficiency, cerebrovascular accidents, etc. Darkening in the eyes and “flying midges” - this can also happen after an eye injury or traumatic brain injury.
From time to time, flickering in the eyes may occur during neuropsychological, emotional, and physical overloads, sudden movements, or strain on the organs of vision. The same symptoms can occur in smokers and alcohol abusers. If glare in the eyes is rarely disturbing and quickly disappears when it appears, there is nothing wrong with that.
The frequent appearance of flies in front of the eyes may indicate an approaching hemorrhage or rupture of the retina. And if all of a sudden everything breaks out in front of you, sudden flashes and fixed spots that prevent you from watching, urgently go to a specialist, as these are the first signs of retinal detachment. Such detachment of the eye retina can lead to complete blindness of a person. Symptoms of such a disease can also be a narrowing of the vision, "black flakes" or a "swarm of midges" before the eyes.
Flickering in the eyes can also be caused by osteochondrosis of the cervical spine. If the natural blood flow is disturbed in the arteries of the spine, the normal supply of oxygen to the brain is interrupted, which leads to glare and visual impairment.
Pugs in the eyes are possible with severe poisoning, when toxins with damage to the nervous system also affect the optic nerve.
Flickering before the eyes appears with decompensated diabetes mellitus, which signals a worsening situation when not only the vessels of the brain, but also the eye retina are affected.
Acute internal bleeding can also lead to flies in front of the eyes, and this may be the only sign of such bleeding.
If a person develops anemia, the level of red blood cells and hemoglobin decreases sharply. Due to such an acute decrease in the amount of blood in the body, an oxygen deficiency is formed and the metabolism in the fiber is disturbed. With anemia in humans, flicker in the eyes becomes almost continuous and leads to impaired vision.
Among other diseases, the symptom of which may be flickering in the eyes, is uveitis, an inflammatory process in which white blood cells are involved, secreted from the choroid of the ciliary body, eye or iris tissue. Also causes glare in the eyes, increased intracranial pressure, pinching of the vessels of the cervical spine and even migraine.
With a large overstrain of blood vessels, a person has a violation of the blood exchange between capillaries and tissues. As a result of this, a hypertensive crisis falls on a person. One of its symptoms is flickering and midges before the eyes, because the retina is extremely sensitive to increased pressure in the vessels.
If a person has hypotension, this can also lead to flickering points in front of the eyes. Blood vessels are insufficiently and untimely filled with blood, from this blood pressure drops to a critical level, which, in turn, leads to various visual impairments: darkening in the eyes, glare, narrowing of the view, floating spot in the eyes, etc.
During pregnancy, the appearance of flickering in the eyes may indicate the development of eclampsia, a condition that is extremely dangerous for a pregnant woman and her baby.
For all of the above symptoms, you should contact an ophthalmologist to conduct a thorough examination and prescribe appropriate treatment.
If the frequency of occurrence of midges in the eyes is rare (state after sleep, a flash of bright light, etc.), do not worry. You are healthy!