What is Nistagm? What forms of nystagma exist? How is Nistagma? Answers to these questions you will find in the article.
Content
Nistagm (Nystagmus) is spontaneous oscillatory movements.
The following types of nystagma distinguish:
- Peal-like,
- Clonic
(peasant), - mixed.
Towards:
- horizontal,
- Vertical, rotator,
- diagonal (direction is evaluated by
quick phase oscillations).
By scope:
- large-,
- Middle-,
- Small-durable.
Frequency
oscillatory movements can exceed several hundred per minute.
Acquired Nistagm is always accompanied by a fuzziness of visual
perceptions (although central vision can be high) and
dizziness, and congenital nystagm does not cause dizziness.
Nistagm, like paralysis, is based on central or
Local genesis. The development of nystagma may be due to defeats
cerebellum, bridge, oblong brain, second frontal winding,
Plates of the roof (quadruple), pituitary gland and some other departments
big brain due to inflammatory and tumor processes or
Vascular disorders. On the other hand, it may arise in connection
Low vision of both eyes due to clouds, optical anomalies
media and changes of the vascular shell, retina and optic nerve.
With the defeats of the central departments of the nervous system arise
Cortical, vestibular, hysterical, and also
Other types of Nistagma. Damage to the peripheral department of the visual
or the auditory analyzer causes optical and labyrinth nystagma.
There is a physiological nastagm to which
His species like optagmatic, labyrinth and nistagmoid
twitching (with extreme eye leads). As is known, based on
Optocinetic nystagma can check the visual sharpness. The study of the labyrinth nastagma plays a big role,
For example, in assessing the functional state of the vestibular apparatus
cosmonauts.
Nistagma treatment
Nistagma treatment is predicted, and often unsuccessfully. Everything
efforts are sent to eliminate the total reason for it that caused it that
is the lot of many specialists. All therapeutic events,
allowing to increase visual acuity (treatment of amblyopia, correction with
using glasses, reflexotherapy, cataract extraction, keratoplasty and
Dr.), as well as restoring muscle tone, can lead to
Reducing Nistagma.
Operational interference on the muscles gives effect mostly only when horizontal nystagme.
