What tests are done for nystagmus? What tests are needed for nystagmus?

nystagmus and oscillating visual hallucinations, the sensory deficit type is the pendulum type, the motor deficit type is mainly the impulsive type, and there are also pendulum or rotation types.

Changes in nystagmus, increased nystagmus intensity during fixation, nystagmus control on assemblage, increased visual acuity.

Low vision, but impulsive type has good vision at rest.

The condition of nystagmus is a disease that belongs to the cerebral function of the ear vestibular function, such a disease has an ice water test examination, that is, after pouring 4 degrees of cold water into the ear, and then observing the nystagmus, through such an examination, the vestibular function of the ear can be detected, which has special significance for the diagnosis of otogenic diseases, and then it is a special point, the instrument is used to examine, and the nystagmus current diagram of the instrument examination is used to analyze the nystagmus. Pay attention to rest, regular work and rest, ensure sufficient sleep time, and develop good living habits.

Nystagmus can be detected by nystagmus, optometry and visual examination, visual field examination, fundus examination, brain CT, and magnetic resonance imaging.

Tests for congenital nystagmus, including a general eye exam, and a special eye exam for congenital nystagmus.

1. General ophthalmic examination includes visual acuity examination, refractive examination, ocular position examination, eye movement examination, as well as anterior and posterior segment examinations of the eye, the anterior segment examination is mainly the examination of refractive pathways such as cornea, lens, iris, etc., and the posterior examination is mainly the examination of the fundus.

2. The special examination for congenital nystagmus is mainly to observe the direction, amplitude, frequency, fast and slow phase, compensatory head position, median zone position, etc. of nystagmus through the naked eye, and also includes the traditional nystagmus and electronystagm to check the eye movement waveform, as well as the coherence light tomography and visual electrophysiological examination to check the first time.

such as velocity, frequency, amplitude, direction, etc.) are objectively recorded for comparison.

Optometry and visual examination: Optometry is done to determine the refractive status of the patient. Before the child gets his or her optometry, the doctor will first give eye drops to dilate the pupils.

Visual acuity test is used to detect the eye's ability to distinguish small targets with obvious graphic contrast, and contrast sensitivity test is to measure the resolution ability of different spaces in bright contrast states, which can more comprehensively understand the shape perception function of the human eye.

Visual field examination: It is mainly used to check whether the peripheral visual field is complete, and is used to judge whether there are nervous system diseases, retinopathy, etc.

Fundus examination: This test is an important test to rule out vitreous, retina, choroidal, and optic nerve disorders.

1. General inspection.

Observe the nystagmus directly when the patient is staring straight ahead or when the patient follows the examiner's finger in a certain direction, and some require monocular covering. To this end, the following points should be taken into account during the inspection:

1. Is nystagmus hidden, latent or dominant?

2. Is nystagmus joint (the movements of both eyeballs are consistent with each other) or dissociate?

3. The type, direction, degree, frequency, amplitude of nystagmus, etc.

4. There are endless eye positions.

2. Special inspection.

Instrument examinations such as nystagmus galvanography.

1.Genetic factors, some congenital nystagmus are mostly thought to be caused by genetic factors.

2.Eye diseases, such as macular lesions and ocular neuromuscular dysplasia, can cause nystagmus.

3.Inner ear diseases, such as labyrinthitis and otitis media, can cause damage to the receptors of the inner ear, which in turn can cause nystagmus.

4.Neurological disorders, commonly found in cerebral infarction, brainstem or cerebellar disorders.

5.Drugs or alcohol, such as anti-seizure medications, sedatives, or alcoholism, can cause nystagmus by impairing local brain functions.

A general nystagmus test can roughly determine whether the nystagmus is overt or recessive, whether it is dissociative or associative, and thus can determine which diseases are causing it.

The symptoms of this disease are not often obvious, and direct observation of the naked eye can see involuntary, regular oscillations of the eyes, which can be horizontal, vertical or rotational.

Nystagmus is not a stand-alone condition, but a clinical manifestation. Therefore, the first thing to do is to target the symptoms. And then there's the improved eyesight:

Oculogenic nystagmus, which focuses on improving visual acuity and preventing primary lesions that cause random vision. Appropriate prisms can also be formulated to eliminate the compensatory head position and improve vision. Finally, surgery can be performed ** nystagmus for congenital impulsive type (i.e., ocular position):

Surgery may be performed. Thank you for trusting me and I wish you good health!

Tests for nystagmus include: general examination, which is to directly observe the nystagmus when the patient is staring straight ahead or when the patient follows the examiner's finger in a certain direction; Special examinations, spectacle examination, nystagmus galvanography and other instrument examinations.