home Calculators Why do I have poor eyesight? Vision is falling: what to do? Folk remedies

Why do I have poor eyesight? Vision is falling: what to do? Folk remedies

A sharp deterioration in vision greatly changes the quality of life. The reasons for this may be different. When vision gradually declines, a person manages to adapt to the impairment. But the rapid loss of visual ability of the eye causes panic and can plunge severe depression. After all, more than 90% of the information received from the outside is provided by the eyes. To preserve vision, you need to pay attention to your eyes not sporadically (from time to time), but constantly. The visual function of the eyes also depends on the condition of the body as a whole. Why does a person begin to see poorly?

The first symptoms of the disorder visual function considered to be the inability to qualitatively distinguish the contours of more or less distant objects, blurry pictures, a “veil” before the eyes, inability to read, etc. Loss good quality vision may be associated not only with defects themselves visual organs. A drop in visual acuity or its loss may be a symptom of serious systemic diseases body. The pathological condition of the eyes can be temporary (passing) or permanent, persistent.

Loss or deterioration of visual ability may be:

bilateral - the lesion is most often the cause of a neurogenic disorder;
unilateral - usually associated with a local problem (defect of eye tissue, local vascular pathology).

Why does vision decline rapidly, suddenly? The causes of a sharp, spontaneous loss of visual viability of the eyes (one or two) are usually classified as ophthalmological (directly related to the physiology and anatomy of the eyes) and general - those reasons that are associated with various general diseases body.

The loss of basic eye function is not always associated with organic disorders body.

Visual acuity may temporarily but sharply decrease due to fatigue, constant lack of sleep, long stay in front of a computer monitor, especially if it involves everyday work activity person.

Ophthalmic factors

A spontaneous decrease in the ability of one or both eyes to see well, its complete or partial loss is a consequence of many ophthalmological pathologies:

Injuries (mechanical, chemical) of the visual organs. We are talking about bruises of the eyeball, thermal burns, exposure to aggressive chemical substances into the eye, foreign objects, about orbital fractures. Particularly severe wounds are caused by piercing and cutting agents; loss of the ability to see in the eye is often a consequence of their exposure. Chemical agents often affect not only the superficial layer, but also the deeper structures of the eyeball.
Retinal hemorrhage. The reasons for this may be different - excessive physical exercise, fragility vascular walls, long labor activity, venous stasis, intraocular hypertension.
Acute infections eye (usually not one, but both eyes are affected) – fungal, viral, bacterial. This includes blenorrhea, conjunctivitis of various etiologies, keratitis, ulcers of the eye membranes. Loss of quality of vision is usually temporary.
Detachment of the retina and eyeball, their ruptures.
Optic neuropathy. The nature of the lesion is ischemic. There is a sudden loss of vision, usually one-sided, pain syndrome however, it is missing. Examination reveals false edema optic nerve, pallor retina.
Retinal migraine is characterized by a monocular scotoma (a blind spot in the visual field). Its appearance is associated with dyscirculation in the central artery of the retina. It can alternate with another type of migraine - ophthalmological, in which attacks of severe headache are associated with visual dysfunction (sparks before the eyes, flickering, scotomas).

All these pathological conditions are sharp. If your vision suddenly deteriorates, you should immediately consult a doctor. Timely assistance in most cases helps restore vision, stop its decline, and save the eyes.

Intracranial hypertension - benign

Promotion intracranial pressure benign nature is usually characteristic of girls who are prone to obesity and suffer from cycle disorders. Various pathologies predispose to the disease endocrine system, pregnancy, Iron-deficiency anemia.

Accompanied by severe pain in the back of the head, which can also be asymmetrical and generalized. Another characteristic symptom– severe visual dysfunction (reduced visibility). A special study indicates swelling of the optic nerve, congestion, and hemorrhages.

Temporal arteritis

Inflammatory damage to arterial vessels: vessels of the head, eyes. This is accompanied by deterioration of vision. The causes of this pathology have not been definitively established. The disease quite often provokes complete one-sided blindness. The disease mainly affects older female representatives of the population.

In addition to eye symptoms, there is headache, tension and pain in the temporal artery. Indicators are changing laboratory tests, which indicate the presence of an inflammatory process.

Amavrosis fugax

Amavrosis fugax – sudden blindness. Internal stenosis carotid artery observed in older patients. As a result of this pathology, a person’s vision suddenly and abruptly disappears. The reason is a transient fluctuation in the level of blood flow in the retina area. Other characteristic features: noise in the projection of the artery (determined during auscultation), contralateral hemisymptoms, weakness in the limbs, etc. Vision in one (usually) eye deteriorates completely unexpectedly, over a period of minutes or hours. The disturbance continues—loss of visual ability of the eye—for several hours.

Amavrosis fugax may be a consequence of retinal vascular embolism. The cause of the pathology is damage to the carotid artery (internal). With the blood flow, the embolic formation penetrates the vessels of the retina, causing ischemia. The body has a special function provided by nature - the dissolution of blood clots, therefore blindness is often transient. In the acute phase, the retinal artery is fused, in it, with the help additional methods examination (angiography) reveals a blood clot.

Other causative factors

Among the other reasons that cause vision loss are the following:

A person’s vision gradually decreases due to vascular damage due to diabetes mellitus ( diabetic retinopathy), the formation of cataracts and cataracts. Vision is impaired by pathologies of the visual organs such as farsightedness and myopia. The progression of these diseases leads to loss of the ability to see well. Natural wear and tear of eye tissue and the presence of many concomitant diseases are the causes of decreased vision in old age.

Due to acute stress, visual dysfunction – “psychogenic blindness” – can occur. She often threatens representatives of the fair half of humanity.

Why? Women are distinguished by their emotionality and psychological sensitivity. The patient complains that her vision has sharply decreased. The reactions of the pupils of the eye are preserved, there are no pathological changes in the fundus.

Inattention to eye symptoms may result in complete loss of visual perception. Treatment depends on the cause of the disorder, severity pathological disorder. In any case, contacting a specialist is an urgent need. Take care of your eyes, monitor their health!

We receive more than 90% of information about the world around us through vision. The eye muscles work several times more than all the others in human body. The protein of the cornea and lens can withstand temperatures up to 70 degrees. About how to protect your eyesight and what to do modern world it can still be ruined - in an interview with an ophthalmologist, Dr. medical sciences and Professor Nikolai Ivanovich Poznyak.

Nikolai Ivanovich Poznyak
ophthalmologist of the highest category, scientific director of the VOKA Eye Microsurgery Center
laureate of the State Prize of the Republic of Belarus
Doctor of Medical Sciences, Professor

Lack of visual hygiene

Increased information load on a person, visual fatigue eyes while working on a computer and mobile devices have recently been considered excessive for our eyes. This is one of the factors that can lead to decreased vision. It is enough to take the subway during rush hour to understand that ophthalmologists will not be left without work in the next 30-40 years. Not only young men and women, but also the older generation are using gadgets. This is a big visual load. If a person also has factors that reduce work oculomotor muscles and the visual apparatus, then increased fatigue guaranteed.

Visual problems occur partly due to the fact that when we look at a screen, we blink less often. The tear film is destroyed and the cornea dries out. Eye discomfort is aggravated by improper workplace lighting and screen glare.

This behavior, according to the doctor, eventually leads to eye diseases. If a person still smokes, often and immoderately drinks alcohol, then this further provokes decreased vision and deterioration of health in general.

To protect your eyesight at the modern pace of life, it’s a good idea to develop your own routine for working at the computer. None of us work for 30 minutes and go to rest. We usually come to work and sit in front of the computer for the rest of the day. You should try to take active breaks. For example, play table tennis several times during the day. You can also look out the window (into the distance). Computer relaxation programs with light and visual effects have been developed. You can choose them for yourself on the Internet.

Poor nutrition

The doctor explains that vision problems are often associated with the condition of other organs and systems of the body.

We often neglect proper nutrition and we eat unbalanced food. Insufficient consumption of minerals: zinc, copper, selenium and vitamins A, E, group B, Omega-3 polyunsaturated fatty acids and other micro- and macroelements - leads to metabolic imbalance. The body's resistance to infections may decrease and harmful factors external environment.

The professor notes that there must be moderation in everything. Excessive use vitamins (including those in tablets) can be harmful. For example, increased amount vitamin A causes disruption of the liver.

It is important to understand that eating more blueberries or carrots will not significantly improve your vision. It is important to eat comprehensively and fully at all times. Yes, there is a certain amount in blueberries minerals and vitamins of group C. Carrots contain carotene, but they will only be beneficial for the eyes if heat treatment and in combination with fat. Simply put, if you want to lean on carrots for the sake of vision, saute them for vegetable oil and eat it like that.

By the way, teeth are directly connected to the eyes. If you have problems with your teeth, then a persistent, long-standing infection can easily have a negative effect on your eyes. That is why, before eye surgery, ophthalmological surgeons strongly recommend healing all caries and solving other dental problems.

Another reason for decreased vision is not the lack of work of the eye muscles, but insufficient physical activity the person himself. It is the eye muscles that work more than all the others in our body.

Prevention of eye diseases can be through special training of the extraocular muscles, which increases the reserves of the eye. However, the result of such training usually lasts no more than 2-3 weeks and only when you do it constantly. That is why it is better to give preference not to eye training, but to minimizing situations that impair vision.

Genetics

We must not forget that the predisposition to the development of many diseases is inherited. The quality and acuity of vision is no exception. Myopia, glaucoma, corneal and retinal dystrophies can be inherited. That is why it is important to maintain visual hygiene, work and rest schedule.

The doctor says that vision can deteriorate at any age. However, there are age periods when visual impairments are more common. For example, at healthy person Having passed the 40-year mark, presbyopia develops - deterioration of near vision due to the natural loss of elasticity of the lens that occurs with age. It is the latter that is responsible for focusing vision. In general, after 40 years of age, your vision should be checked annually, especially paying attention to intraocular pressure and the condition of the retina.

Frequent visits to 3D and 5D cinemas, as well as baths and saunas

When visiting 3D and 5D cinemas, the stress and strain that the eyes experience when trying to create the illusion of a three-dimensional picture is enormous. To avoid negative effect, it is recommended to observe moderation in watching such films.

It is better to enjoy them for no more than 15-20 minutes. In this case, the screen should be located 15 meters from the audience. In this case it is harmless.

Baths and saunas are too uncomfortable for the eyes heat air, humidity and dry steam for a long time. Under their influence, blood circulation increases. Then there is dilatation of the eye vessels and redness of the eyes. If there are no vision problems, everything goes away on its own. If there is, the disease may worsen. These same factors can cause dry eyes.

That is why, before the bath, some people with hypersensitivity It is recommended to use moisturizing medications - eye drops. Simply squinting or blinking at the slightest discomfort will also help.

Nature has thought of everything in such a way that the proteins of the cornea and lens have increased heat resistance. Typically, body protein can withstand temperatures up to 45 degrees. While the proteins of the cornea and lens are not afraid of temperatures up to 70 degrees.

Our body is thought out to the smallest detail. Eyes are no exception. They can work to the limit of nature’s capabilities, but not for long.

Once in the life of almost every person there comes that unpleasant moment when small letters in a book or on the label of a product in a store become beyond his control. At first, they don’t pay much attention to this annoying obstacle, chalking it up to eye fatigue or bad light. The man, carefully squinting, tries to read the blurry letters, straining his eyes even more. Why does vision deteriorate? What prerequisites lead to this? Is it dangerous? Many people don’t even try to find out the causes of visual impairment. They complain about "old age" long sitting at the computer and find a bunch of other reasons.

When the inability to see clearly begins to really interfere with life, a person thinks about his eyes. The result of thinking is a trip to the ophthalmologist for glasses. The man put on his glasses and began to see perfectly again. He believes that the problem has been solved and his vision has been restored. But this is not so! Yes, the clarity of visual perception is corrected by the lenses, but the condition of the lens remains the same, and without treatment and support, your vision will slowly decline. Of course, farsightedness affects mostly older people, and it is an age-related disease. But natural causes the decrease in visual acuity is not explained; there are also physiological ones that you need to know about. Why does vision deteriorate?

It is a mistake to think that a decrease in visual acuity occurs only from eye disease. In fact, there is a whole range of common body problems that adversely affect vision. Decreased visual acuity can be caused by:

Endocrine diseases. The two main pathologies of our endocrine system that affect vision are problems with the thyroid gland and pituitary adenoma.
Spinal diseases. All processes in our body are somehow connected with spinal cord, with vertebrae. Spinal injuries lead to damage to other organs, including the eyes.
Venereal and other infectious diseases. Viruses and bacteria entering the body infect nervous system. They suffer and nerve centers which are responsible for vision.
General fatigue. When a person chronically does not get enough sleep, eats food poor in minerals, spends little time outdoors, does not play sports and spends a lot of time at the computer, his immunity decreases. The body sends distress signals such as watery eyes, headache, osteochondrosis.
A long, same type of activity. Long reading (reading from a computer monitor is especially harmful!), fine embroidery, knitting, sitting in one position at the computer, working with a microscope and many other “stationary” activities are direct causes of vision deterioration. It is very harmful to sit for hours, staring at the same place. Why does vision deteriorate from looking at one point? First, you forget to blink. This causes the cornea of the eyes to dry out, which directly leads to disturbances in the optic nerve and accommodation (inability to focus). Secondly, sitting in one position is fraught with osteochondrosis and curvature of the spine, which leads to eye diseases.

Prevention is a powerful weapon!

Of course, any disease is easier to prevent than to treat. But it is quite possible to eliminate the above-mentioned causes of visual impairment. An endocrinologist will help put the system in order. Infectious diseases They are also treated comprehensively, the main thing is to identify them in time and not give up treatment halfway. As for overwork, you will have to reconsider your lifestyle. Doctors recommend strict adherence to the following recommendations:

Timely healthy sleep. It is very important to go to bed at the same time. To fall asleep peacefully, take a walk outside before going to bed, then take a warm bath, drink a glass warm milk with a spoon of honey (or mint tea). You should not read at night or watch TV for a long time. Visual images will flicker in front of yours for a long time eyes closed, interfering with sleep.
Morning exercises. Does this sound corny? But it works! By stretching your muscles and joints, you develop your spine and make it flexible. Therefore, minimize the risk of damage to it. And as we already wrote above, diseases of the spine lead to visual impairment.
Vitamins. Take comprehensive supplements every spring and fall vitamin preparations to boost immunity and, most importantly, for visual acuity. The composition of “eye” vitamins includes blueberries and other valuable elements.
Proper nutrition. With food, the body receives the main nutrients. When we deplete our diet with diets or simply the wrong choice of foods, all organs suffer, including the eyes. If the blood supplies the eye muscles with little nutrition, these muscles weaken. The retina is especially affected, as it is unable to generate clear and correct visual images.
Change of activity. Simply put - switch! Still, the main causes of visual impairment are continuous eye strain. After working on the computer, or reading, or doing handicrafts for an hour or two, force yourself to get up and stretch with an effort of will. Go outside, go to the store, walk the dog. Or just do something else that doesn't require intense eye strain. And put special drops like “artificial tears” into your eyes more often.
Gymnastics for the eyes. In our previous articles you will find sets of exercises that will prevent a decrease in visual acuity and literally work wonders! Especially palming. This can (and should!) be done at work.

Help your eyes

Know that your eyes are an organ that does not spontaneously get sick; we ourselves “destroy” it. Eye diseases rarely appear out of nowhere, like migraines, for example. We ourselves are methodically degrading our vision, and dynamically developing high technologies - computers, the Internet, electronic readers, smartphones - are actively helping us with this.

It is very useful to lie down in the twilight, placing cotton pads soaked in chilled tea leaves on your eyes.

Vision is everything to us. If we can come to terms with gastritis or vegetative-vascular dystonia and coexist, then it is impossible to come to terms with blindness. Life loses all meaning. And once again blasphemously exploiting the eyes, compare this constant pressure eye muscle with any other muscle. Can you stand for hours with your arm stretched out in front of you holding five kilogram dumbbells? Definitely not, because static, continuous biceps force is not something you can tolerate.

Loss of vision is a real tragedy: video

What is the difference between continuous tension of the eye muscles and the muscles of the hand? But for some reason we don't pay attention to obvious signs overwork and literally our eyes’ pleas for rest. “It’s like there’s sand in your eyes,” “a veil before your eyes,” “everything is in a fog”: it’s your eyes screaming for mercy.

Take care of your “apple of your eye”, and you will be able to see ours for a long time amazing world in all its bright colors.

Have you noticed that your vision has begun to deteriorate? It's time to take all possible measures to restore it, or at least to slow down the rate of decline.

If it is impossible to completely exclude communication with the computer and TV, then every 30 minutes you should give your eyes a rest: blink, look out the window, just close your eyes, sit with holey glasses. The duration of such relaxation is 5-10 minutes.

Control your own posture at the computer

The back should be straight, knees at right angles, feet pressed to the floor, and elbows resting on the table. The computer screen should be 50-60 cm away from the eyes and located at their level. Ideal lighting is dim, diffused light.

Do

Without raising your head, look up, to the right and left;
Make a move eyeballs clockwise;
Blink and close your eyes;
Draw an infinity sign with your eyes;
Focus your gaze on the tip of the pencil, moving the pencil closer and further towards your nose.
Each exercise requires 5 repetitions.

Take a course of vitamins

Or special vitamin supplements for vision correction.

Riboflavin solution (for blurred vision);
Prenacid, Lacrisifin, Cromohexal, Octilia (if decreased vision is due to allergic diseases);
Visin, Actipol, Opatanol, Okumetil (for eye strain);
Myrtilene forte (increases visual acuity at dusk);
Vitrum Vision (restores vision when there is heavy strain on the lens);
Tianshi (Chinese complex that completely heals the eyes);
Alphabet Optikum (multivitamins);
Visualon, Tentorium Blueberry ();
Blueberry forte, complex (for any visual impairment).

The course of vitamin therapy (if the instructions do not contradict this) is 1 month. It should be repeated 2-3 times a year.

Use it

If due to long work When working at the computer, your eyes become red and a burning sensation is felt, then it makes sense to use it daily. They are helping eye muscles relax, and this leads to normalization of blood circulation and increased visual acuity.

Eat right

Enrich your diet with foods high in retinol, vitamins E, C, D, selenium, zinc, omega-3 fatty acids, and lutein. These are almonds, Jerusalem artichoke, liver, oysters, garlic, herbs, carrots, spinach, corn, broccoli, red fish, olive oil.

Get examined by an ophthalmologist

Repeat this regularly.

All of the above can be resorted to only if the loss of vision is caused by visual overload.

Vision that decreases due to the progression of any disease will not recover on its own. Such diseases may include pathologies of the spine, problems with thyroid gland, eye injuries. Even the accumulation of toxins can cause vision loss. In this case, you need to visit an ophthalmologist who will conduct an examination and prescribe the necessary treatment.

Psychogenic reason.
Bilateral ischemic infarction of the medulla in the area of the vertebrobasilar system.
Optical neuropathy of ischemic nature.
Retrobulbar neuritis, which is a consequence of disseminated neuritis.
Toxic optic neuropathy.
Postangiographic (artificial).
Sudden intracranial hypertension of benign and other nature.

If vision in one eye has sharply decreased (unilateral dysfunction), this may be due to:

Trauma in the anterior area cranial fossa or (fracture).
Temporal arteritis.
Optic neuropathy, which is a consequence of arteriosclerotic ischemia.
An increase in intracranial pressure, which led to swelling of the nipple and.
Retinal migraine.
Amaurosis fugax, which is a consequence of stenosis of the internal carotid artery.

Bilateral vision loss

Ischemic optic neuropathy

In this condition, co-present ischemic lesion mesh shell. In some cases, bilateral ischemia occurs as a result of aortic arch syndrome if the patient suddenly changes his posture from bending forward to an upright position.

Bilateral infarction

If vascular blood flow is disrupted in the visual cortex, other signs of vertebrobasilar insufficiency are present. In this case, the onset of the disease is often sudden and accompanied by a violation color vision. Typically, such changes are typical for elderly patients. Pupillary reactions in bilateral infarction are preserved, as a result of which it is necessary to distinguish it from visual agnosia.

Toxic optic neuropathy

The development of toxic symptoms occurs when consuming methyl alcohol. If vision has sharply deteriorated, this may be the result of prolonged tobacco abuse and ethyl alcohol. Sometimes visual impairment occurs due to poisoning with cyanide, isoniazid, trichlorethylene, antineoplastic agents, disulfuram, and methanol.

Retrobulbar neuritis

The first symptom multiple sclerosis in 16% of cases it is retrobulbar neuritis. In this case, an acute or less often subacute onset of the disease is noted. It is central vision that suffers the most. It must be remembered that retrobulbar neuritis is not always caused by multiple sclerosis. Sometimes it is a consequence of inflammation or infection, among which are tuberculosis, cryptococcosis, sarcoidosis, syphilis, toxoplasmosis, Lyme disease, brucellosis, mycoplasma. In the event of viral encephalitis or viral infection(mumps, measles, chicken pox, mononucleosis, rubella, herpes zoster, cytomegalovirus, hepatitis A) sometimes bilateral optic neuritis develops.

Benign intracranial hypertension

An increase in intracranial pressure of a benign nature is more typical for overweight girls who suffer from cycle disorders. With this disease, the development of symptoms is usually gradual. The main symptoms include pain in the occipital region heads, but sometimes painful sensations asymmetrical or generalized. The second most common manifestation of benign hypertension is sharp deterioration vision. Fundus examination reveals papilledema. If you produce cerebrospinal fluid, the pressure is 250-400 mm aq. Art. CT signs intracranial hypertension is a decrease in the size of the ventricles of the brain. Much less often in this condition, damage to the abducens nerve occurs, which is unilateral or bilateral.

Usually the cause of hypertension cannot be determined, but sometimes this condition is preceded by various endocrine pathologies, iron deficiency anemia or pregnancy. If using conservative techniques cannot be restored normal level intracranial pressure, then trepanation is performed for the purpose of decompression.

Postangiographic blindness

With artificial vision loss (Anton's syndrome), toxic damage to the occipital lobes of the brain on both sides most often occurs. Visual function is restored, as a rule, after 1-2 days.

Intracranial hypertension

Increased intracranial pressure is often accompanied by attacks of amblyopia, the duration of which varies from several seconds to several minutes. When studying the visual fields, an increase in the size of the blind spot is noted, as well as peripheral narrowing. During ophthalmoscopy, serious congestion is detected in the fundus of the eye, and in some cases hemorrhages occur in the area. In the future, the loss of vision is more persistent.

Psychogenic blindness

Psychogenic vision loss occurs more often in women who are prone to such disorders. Most often, patients also have other signs of mental disorders (pseudoparesis, pseudoataxia, etc.). Distinctive feature is the preservation of normal pupillary reactions and unchanged fundus. With other examination methods (EEG, evoked potentials, optokinetic), deviations are also not detected. This category of patients has high degree tolerance to sudden loss of vision.

With bilateral damage to visual function, more often we're talking about about various neurological abnormalities.

Sharp unilateral visual impairment (amaurosis, amblyopia)

Fracture of the base of the skull

With a skull injury in the area of the optic canal, anosmia may be present, external visible damage, optic disc often becomes pale. Also available radiological signs bone defects.

Optic neuropathy

With arteriosclerotic optical neuropathy the nature of the lesion is ischemic. In this case, a unilateral decrease in vision suddenly occurs, but pain does not develop. In some cases, the presence of precursors in the form of temporary visual impairment is characteristic. During the examination, pseudoedema of the optic nerve (disc) and pallor of the retina are revealed. With this disease, total blindness never occurs. Among the most common cause ischemia is isolated diabetes, atherosclerosis, hypertension.

Temporal arteritis

Temporal arteritis amazes arterial vessels, vessels of the head, vessels of the eyes, causing blurred vision. The reasons for its development are not fully understood. Inflammation of the temporal artery often leads to complete loss view from one side. This diagnosis is more often given to older women. In addition to decreased vision, headaches occur, and examination can reveal a tense temporal artery, which is painful on palpation. Also present in the analyzes increase in ESR. Arteritis is usually a systemic pathology.

Amaurosis fugax

As a result of stenosis of the internal carotid artery in elderly patients, vision temporarily decreases sharply, which is caused by a transient change in the level of blood flow in the area of the retina. In addition, with this disease there is a noise on auscultation in the projection of the artery, contralateral hemisymptoms and other signs. In this case, unilateral visual impairment occurs suddenly (within minutes or hours). The duration of blindness also varies, rarely exceeding several hours. At the same time, there is weakness in the limbs that are opposite to the source of the disease. At ophthalmological examination it is possible to identify signs of atherosclerosis of vessels located in.

The direct cause of the development of amavrosis fugax is usually (90%) embolism in the vessels. The source of the embolus is most often the damaged wall of the internal carotid artery on the ipsilateral side. Then, with the blood flow, the formation enters the artery of the eye. Due to impaired blood flow, ischemic damage to the retina occurs, which results in decreased vision. Due to the fact that thrombotic masses often undergo spontaneous resorption, symptoms are transient.
IN acute stage disease, the retinal artery appears collapsed, and fluorescent imaging reveals a thrombus located in the lumen of the vessel. This study not performed often.

Interestingly, within a year after an attack of amavrosis fugax, a third of patients (30%) develop a disorder cerebral circulation. For a diagnostic search, Doppler ultrasonography is used, which allows you to confirm stenosis of the internal carotid artery.

Retrobulbar neuritis

This is inflammation nerve tissue develops quite quickly. The peak of activity occurs, as a rule, in the first four days. Further pathological changes decrease and the patient's condition improves. In some cases, in addition to decreased vision, flickering in the eyes and pain in this area are associated. More often this state occurs in young patients and is unilateral, but bilateral lesions also occur. Retrobulbar neuritis never causes complete blindness. On early stages inflammation and changes in the fundus are absent, with the most significant loss of vision observed in the central region. In most patients, this condition may be the first sign of multiple sclerosis, which is subsequently diagnosed in 17-85%.

In addition to multiple sclerosis, retrobulbar neuritis can be a manifestation of the demyelinating disease syphilis.

Eye pathologies

Among the diseases of the eye itself, the cause of decreased vision can be: retinal detachment, inflammation, hemorrhage into the substance and retina due to tuberculosis, blood diseases, syphilis (Iles syndrome), which is accompanied by signs of retinal perivasculitis.

Retinal migraine

Retinal migraine is characterized by monocular migraine, the appearance of which is associated with discirculatory disorders in the central retinal artery system. This form of the disease sometimes alternates with ophthalmic migraine, as well as with migraine paroxysms without aura.

Ophthalmic migraine

With ophthalmic migraine, headache attacks occur, which are accompanied by homonymous visual dysfunctions (sparks, zigzags, flashes, scotomas). In this case, we are not talking about true loss of vision.