What causes nystagmus and what is it

1. Retinal or refractive media lesions.

These lesions often cause cataracts, refractive errors, choroiditis, and some patients will suffer from the disease at an early age, although they will have amblyopia symptoms, but still preserve their vision, and these patients often cannot fix the fixation of the eyeball, and then develop nystagmus symptoms. If the patient is in a poor light environment for a long time, he will also have vision fixation disorder and wobble tremor.

2. Vestibular labyrinth lesions.

If a patient has damage to the vestibular nerve or vestibular nerve nucleus, the vestibular nerve response will be too high or too low, and these adverse symptoms can cause nystagmus. Acute vestibular labyrinth lesions cause contralateral tremor of the eyeball, accompanied by tinnitus, nausea and vomiting. If the labyrinth lesion is chronic, the patient will tremor toward the affected side.

3. Central lesions.

Nystagmus is caused when lesions occur in the vestibular nucleus that connect the brainstem or cerebellum, and there are many tremor features caused by central nervous disease. If it is only a brainstem lesion, it will produce unilateral tremor and will be predominantly vertical tremor, whereas demyelinating lesions will cause upward tremor. However, central nystagmus is generally not wobbly and is not prone to vertigo or hearing impairment.

4. Genetic and other pathologies.

Some children will have symptoms of nystagmus soon after birth, the cause of this lesion is unknown, but it is related to genetic factors, generally there are patients with congenital nystagmus in the family, then the possibility of this disease in later generations is relatively high, and often the nystagmus caused by this genetic factor is lifelong. In addition, drug poisoning, hysteria, etc. can also cause nystagmus.

What causes nystagmus? Nystagmus is an involuntary, rhythmic, pendulum-like or beating-like oscillation of the eyeball. The main causes of nystagmus are early eye motor dysplasia, such as congenital cataracts, which cause nystagmus, as well as family genetic history, Down syndrome, brain damage, or lesions, such as inflammation of the brain, tumors, degeneration, trauma, and vascular diseases, which may cause nystagmus.

In addition, nystagmus can be caused by eye disease or eye dysfunction, degenerative changes of the optic nerve, severe astigmatism, high myopia, physical diseases, multi-site sclerosis, stroke, and severe ear inflammation. Some poisonings can also cause nystagmus, such as sedative poisoning, antipsychotic poisoning, bromide poisoning, etc., alcoholism, albinism are also one of the causes of nystagmus. Sometimes nystagmus is not defined** and may also be affected by mental and physical strength, such as stress, fatigue or nervousness.

Nystagmus is usually caused by abnormal eye movements caused by certain oculogenic, otogenic, central nervous system, or other lesions.

What are the causes of nystagmus?

Oculogenic nystagmus.

Common ** are congenital eye malformations, ocular neuromuscular dysplasia, cataracts, total color blindness, macular lesions, etc.

Otogenic nystagmus (vestibular nystagmus).

It is commonly found in Meniere's syndrome, otitis media, labyrinthitis , acute vestibular impairment, etc.

Central nystagmus.

It can be seen in encephalitis, brain tumors, cerebrovascular diseases, traumatic brain injury, brain **, ataxia disorder, stroke or multiple sclerosis.

Other. It may be related to heredity, with X-linked recessive inheritance being the most common, which manifests as a parent with the disease, and children are at high risk of developing the disease.

Some nystagmus can be caused by drugs or toxic substances (eg, opioids, barbiturates, alcohol, lead, etc.).

Some special occupations, such as coal miners and train dispatchers, are prone to occupational nystagmus.

Some patients with abnormal thyroid function may have neurological symptoms such as nystagmus.

Nystagmus is an involuntary, rhythmic, pendulum-like swing of the eyeball, which causes nystagmus mainly due to early eye movement dysplasia, such as congenital leukointratropic slippery disorder, resulting in nystagmus, as well as family genetic history, Down syndrome, brain damage or lesions, such as brain inflammation, tumor, degeneration, trauma, and vascular disease, which may cause nystagmus.

In addition, eye disease or eye dysfunction, optic nerve function degeneration, severe astigmatism, high myopia, physical diseases, multi-site sclerosis, stroke, severe inflammation of the ear pin, can cause nystagmus. There are some poisonings that can also cause nystagmus, such as sedative poisoning, antipsychotic drug poisoning, bromorang only poisoning, etc. Alcoholism, albinism are also one of the main causes of nystagmus.

Sometimes nystagmus is not defined**, and it can also be caused by mental and physical influences, such as stress, fatigue, nervousness, and other factors.

The ** of nystagmus is: congenital nystagmus, which is born due to heredity or unknown reasons. It is caused by diseases such as cataracts, amblyopia, etc.

Extraocular muscle paralysis can also cause nystagmus. Lesions of the inner ear labyrinth and the central nervous system can also cause nystagmus.

The causes of nystagmus are mainly caused by hypoxic damage to the brain, as well as developmental abnormalitiesEspecially during the mother's pregnancy and childbirth, due to the lack of oxygen in the uterine group, the patient's brain is hypoxic, the labor process is prolonged, dystocia or birth trauma during childbirth, etc., will cause nystagmusThere are also cases where the disease or some illness brought by the parents is caused.

These lesions often cause cataracts, refractive errors, and choroiditis. Some patients get sick when they are young. Although they will have symptoms of amblyopia, they will still maintain their vision and strength.

These patients are often unable to immobilize their eyes, resulting in nystagmus. If the patient is exposed to poor light for a long time, eye fixation and shaky tremor may occur.

Are you talking about optic tremor, this one seems to be going to the hospital to see.

The ** of nystagmus are: congenital nystagmus, which is due to genetics or unexplained birth. It is caused by diseases such as cataracts, amblyopia, etc.

Extraocular muscle paralysis can also cause nystagmus. Lesions of the labyrinth of the inner ear and the central nervous system can also cause nystagmus.

What is nystagmus, nystagmus is a relatively common congenital disease of the eye in ophthalmology, usually manifested as uncontrolled vibration, this situation is common in children or adolescents, for this disease, there is no clear and effective method, so let's take a look at what isstagmus?

Nystagmus is referred to as nystagmus, and spontaneous nystagmus can be caused by peripheral lesions of the vestibule, central lesions, and certain eye diseases, and nystagmus is an involuntary rhythmic movement of the eyeball, and vestibular nystagmus occurs alternately'Composed of slow-phase and fast-phase movements, nystagmus is also an involuntary, rhythmic, back-and-forth oscillating eye movement. It is often caused by diseases of the visual system, extraocular muscles, labyrinth of the inner ear, and the central nervous system.

What is the examination for nystagmus

Full body examination. Pay attention to whether there are visual abnormalities, visual impairment, refractive error, diplopia, otitis media, ataxia, nausea, vomiting, neurological localization symptoms, whether there are systemic symptoms, etc.;

Examination of visual acuity, visual field, fundus, double vision, and nystagmography, as well as electrical audiometry, auditory evoked potentials, and anterior auditory function examinations have significance in differentiating hearing from brainstem lesions;

Brain CT and MRI, cerebrospinal fluid examination, electroencephalogram, auditory, brainstem and somatosensory evoked potentials, etc., have diagnostic significance for central nervous system tumors, inflammation, degenerative diseases, vascular diseases, etc.;

Tests such as plain x-rays or CT MRI of the cervical spine are useful for the diagnosis of cervical spondylosis.

The above is to introduce to you what is going on with nystagmus, what is the examination of nystagmus, I hope it will help you, nystagmus is actually a kind of eye problem, if there is a problem in this area, it is best to go to the hospital in time to check, not too careless, for eye problems must be paid attention to.

Nystagmus is a regular eye movement that occurs without its own control, and the cause of this is a neurological disorder. There are physiological and pathological types, and there are horizontal, rotational and vertical types, the more common being the horizontal type. This disease does not exist independently, it is a clinical symptom of some diseases, so it should be identified before treatment**.

The causes of congenital nystagmus include albinism, total color blindness, macular damage and other visual impairments. Nystagmus can affect vision, and very few people have normal vision. Most patients suffer from vision problems such as amblyopia, strabismus and astigmatism.

There is a genetic predisposition to this disorder, but the probability is unknown.

If you find that your child has nystagmus, you should pay attention to it. Don't delay your child's treatment because you don't know about nystagmus. In short, no matter what the condition of the eye disease, it is necessary to seize the time to treat it to avoid causing visual impairment and affecting physical health.