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Anonymous users2024-02-12Eye tremor, considered nystagmus, is an uncontrolled beating of the eyeball, which has congenital and acquired causes, and is divided into two conditions: explicit and recessive.
Occult nystagmus, when both eyes are uncovered, there is no tremor, and when one eye is covered, the uncovered eyes show nystagmus. Patients with nystagmus may usually be accompanied by obvious refractive errors or strabismus, and some patients have obvious compensated head position, so routine refractive examination and prism test can confirm the diagnosis. Refractive error correction or surgery can be considered by wearing triangular glasses**, and the main thing is to move the median band to the front to eliminate and improve the head area, and generally cannot reduce the nystagmus.
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Anonymous users2024-02-11Nystagmus is called nystagmus and can be caused by a variety of causes, the most common being the following: First, due to congenital developmental abnormalities. The movement of the eye is formed by the coordinated movement of the 6 extraocular muscles fixed to the wall of the eyeball.
When congenital dysplasia causes the extraocular muscles to malfunction and contract involuntarily, the eyeball will tremble. Depending on the direction of tremor, it can be divided into horizontal tremor, vertical tremor, rotational tremor, etc., which can cause abnormal eye development and low vision. Second, due to extremely low vision in one or both eyes.
If the vision is too low to keep the eyes fixed on the same target steadily, the eyes will gradually tremble, usually horizontal.
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Anonymous users2024-02-10If the child's eyes are shaking inadvertently, it is recommended to take the child to the ophthalmology department of the hospital for diagnosis based on the specific situation.
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Anonymous users2024-02-09The first and the mechanism of nystagmus are complex and uncertain, which may be caused by congenital genetic factors, or may be the clinical manifestations of other ocular and otogenic filial piety and central diseases. Genetic factors and environmental factors are both involved in the pathogenesis.
First, Qin is the main **.
1. Oculogenic nystagmus: refers to the nystagmus formed by the central vision disorder of the macula, which makes the fixation reflex difficult.
2. Vestibular nystagmus: nystagmus caused by lesions in the vestibular nucleus or its communication pathways with the cerebellum or brainstem.
3. Central nystagmus: more common in bulbar lesions, pontine lesions, midbrain lesions and cerebellar lesions.
4. Congenital essential nystagmus: a congenital disease, which is currently unknown and needs further research.
5. Others: may be related to heredity, with X-linked recessive inheritance being the most common, manifested as parents with disease, and children with high risk of disease. Some nystagmus can be caused by drugs or toxic substances.
2. Predisposing factors.
1. Usually blinking, resulting in eye muscle nerve fatigue and paralysis, which can congenitally induce nystagmus.
2. Maintaining the Qiaoshou skin for a long time can lead to fatigue and paralysis of the eye muscle nerves, which can congenitally induce nystagmus.
3. Congenital amblyopia, the eye itself is not perfectly developed, and it is very easy to have congenital 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.
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There are signs, but people often mistakenly think that it is a minor illness, and the delay leads to the deterioration of the condition.