Why does the veil appear before my eyes?

A veil in the eyes, blurred vision, waves, black and light dots are unpleasant phenomena that patients come to a neuropathologist or ophthalmologist. The causes of this condition are many - infectious and non-infectious diseases of the organs of vision, nervous system, various intoxications. What to do if the picture of the world around us is blurred in the eyes?

Causes of blurred vision

The factors leading to this phenomenon can be divided into:

1. Pathologies of the nervous system.
2. Diseases of the organs of vision.
3. Change in arterial and intracranial pressure.
4. Metabolic disorders.
5. Endocrine diseases.
6. Side effects of drugs( antihypertensive drugs, holinomimetiki, holinoblokatory).

Black flies, white spots, spread in the eyes - the causes of this visual defect may be various diseases and pathological conditions of the central and peripheral nervous system. Also visual artifacts appear with poisoning, diseases of the organs of vision.

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For perception of the surrounding world, paired organs of vision meet, which represent an optical system that transmits light and includes a cornea, lens, vitreous. Signals from the external environment take sensitive receptors of the retina - rods and cones that convert them into nerve impulses. Through sensitive optic nerves, information about the picture from the outside is transmitted to the centers of vision of the brain. With pathologies at any of these levels, visual impairment in the form of waves, dots is possible.

Diseases of the eyes

With many diseases of the organs of visual perception in the eyes of everything blurs, there may be white and black flies, dots, waves. Vision becomes turbid and fuzzy in the following diseases:

1. Glaucoma.
2. Myopia( nearsightedness) or farsightedness.
3. Cataract.
4. Pathologies of the vitreous.
5. Detachment of the retina, hemorrhage into it.
6. Infectious lesions - conjunctivitis, iridocyclitis, etc.

Glaucoma is a disease associated with impaired fluid flow in the eye and increased pressure. It can result in complete blindness, although in the initial stages of suffering from this pathology, they note visual defects.

Cataract - the defeat of the lens, performing the function of a refractive lens. Symptoms include the appearance of visual artifacts - artificial points, waves that do not exist in reality.

The vitreous is a clear gel composed of mucopolysaccharides. Its function is color refraction. Sometimes it can develop pathological processes, leading to visual impairment and the appearance of a feeling of blurry( in the eyes as if the waves on the side).

Diseases of the nervous system

The peripheral nervous system carries information from sensitive retina receptors and transfers it to the visual centers of the brain, which analyze and compare the overall picture. Defects in the perception of the image appear in the event of damage to the peripheral nerves and the central nervous system.

What diseases can lead to blurred images:

1. Multiple sclerosis.
2. Neuropathy of various origins - with diabetes, vitamin B deficiency.
3. Vegeto-vascular dystonia. Lack of glucose, fasting.
4. Disturbance of cerebral circulation in atherosclerosis of cerebral arteries, hypertensive disease, pressure decrease.
5. Intoxication.
6. Craniocerebral injury.

Multiple sclerosis is considered an autoimmune disease in which the immune system attacks the nerve fibers of one's body. This leads to neuropathies, including the optic nerve, which is fraught with the appearance of vagueness in front of the eyes. The defeat of the optic nerve in a patient manifests itself several years earlier than all other signs of the disease. Patients complain of changes in visual acuity during the day, narrowing of the visual fields( especially green and red colors).During the period of remission, which lasts several months, vision can be restored.

Vegeto-vascular dystonia is a disorder in which regulation of vascular tone by the nervous system is impaired. In this case, it is possible that artificial objects - points, waves, appear in the field of view, the perception becomes vague. The change in vision with VSD is due to a violation of blood supply, lack of nutrients, anxiety. The situation is aggravated by panic attacks. After treatment VSD vision comes back to normal.

Deficiency of vitamins, minerals, glucose also affects vision. With vitamin B vitamin A hypotoxinosis, the picture of reality can be blurred. Vitamin A is directly involved in the processes occurring in retinal receptors. And B vitamins affect the conductivity of the nerves.

With glucose deficiency in the brain during fasting and heavy physical exertion, an overdose of insulin people can note the blurred image before your eyes. And the reason in the energy deficit of the central nervous system, sensitive to hypoglycemia is a lack of glucose.

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Disturbance of blood circulation of the brain also leads to vagueness: in the eyes appear as if waves with transient ischemic attacks, strokes, hypertensive crises. Changes in vision, as a rule, is one of the first signs of cerebral circulation disorders. Blood flow to the brain decreases with the use of drugs that reduce blood pressure.

Poisoning with methyl alcohol, poisonous fungi, autointoxication with intestinal obstruction may be accompanied by blurred vision. Botulism also leads to this phenomenon.

Because the causes of visual impairment and the appearance of the veil before your eyes are many, you should consult your doctor for diagnosis. Self-treatment is strictly contraindicated, since the condition can deteriorate markedly.