Optic neuritis

Optic neuritis (optical neuritis, visual neuritis) is the sharp disease, shown an inflammation of an optic nerve. It often meets in a combination to the neurologic illnesses described demyeliniation. Demyeliniation is a loss of an external fatty layer of a nervous fibre which provides fast conductivity of a nervous impulse. More often neuritis an optic nerve it is combined with a multiple sclerosis - slowly progressing disease of the nervous system shown just this most demyeliniation. The inflammation of an optic nerve is frequent is a debut of a multiple sclerosis or precedes development of a multiple sclerosis for some years. Sometimes the reason of development neuritis an optic nerve remains to the unknown person.

The majority of patients with neuritis of an optic nerve test sharp deterioration of sight in a combination to a pain arising at movement by a sick eye. This disease is usually shown on one eye and can periodically give relapses, as for example often happens at a combination to a multiple sclerosis.

Attributes (symptoms)

Following symptoms of an optic nerve injuries do not meet in all cases, but they happen more often.

- Pain at movement by an eye (in 90 % of cases)
- Pain in an eye without movement
- Reduction of visual acuity
- Sight as in darkness
- The lowered perception of color
- Narrowing of a peripheral field of vision
- Blind spot in the center
- Fever
- Headache
- Nausea
- Decrease in sight after physical activities, baths, a hot shower or a bath (at rise of a body temperature)

Diagnostics

The doctor considers some factors at diagnostics an optic neuritis. Disease not always finds verification at survey of a disk of an optic nerve on eye day by means of ophthalmoscope. A pain at movement by an eye - the characteristic complaint for this disease. The doctor can check up reaction of pupils to light and appoint electrophysiological research of an optic nerve, research of fields of vision, colour perception and a computer tomography or a Magnetic resonance tomography of a brain.

Treatment

Treatment of this disease in overwhelming majority of cases is spent by purpose of steroid hormones and not steroid anti-inflammatory preparations in drops, ointments, tablets and injections. Also antibiotics are applied also. Very seldom resort to surgical operation at neuritis an optic nerve. It refers to decompression environments of an optic nerve and consists in its opening for pressure decrease in an optic nerve which at this disease is inevitably raised owing to an inflammatory hypostasis.

From long-term research of treatment an optic neuritis (Optic Neuritis Treatment Trial) doctors have learned, that purpose of steroid hormones in a vein (instead of in tablets) reduces risk of progress of a multiple sclerosis in the future. This find is of great importance, as at half of patients with neuritis an optic nerve in the future the multiple sclerosis develops. Though this treatment has the minimal influence on vision, it is important for the general health of the patient.