Increase in eye pressure causes destruction of the delicate nerve fibers.
This is seen as an increase in cupping of the optic nerve. The visual fields
become constricted and blindness can result.
Showing Optic Nerve In Glaucoma.
This means inflammation or swelling of the optic nerve. It can result from various causes
and can occur with or without affecting other parts of the nervous system.
It occurs more commonly in young - middle aged females.
Sudden loss/ diminished vision, inability to see colours. There may be
associated pain. It can occur in one/ both eyes simultaneously or after
The eye needs a detailed exam.
A CTScan/ MRI may be needed.
Treatment consists of giving steroids as intravenous injections and
monitoring the condition. A hospital admission may be needed.
Multiple sclerosis is the main condition to look out for in optic
Systemic diseases like diabetes,
hypertension, Giant cell Arteritis, Thyroid disease can affect the optic nerve.
AION (anterior ischemic optic neuropathy) can be a cause of sudden loss of
vision in elderly.
Optic nerve injury
can occur in motor vehicular accidents. They can
range from minor swelling to total tearing away of the nerve.
Optic nerve can be affected by tumors like meningioma, haemangioma
The optic nerve can be affected due to birth anomalies like
This is the swelling of the optic nerve
due to raised intracranial pressure, i.e. in association with swelling of
the brain. Brain swelling can occur in 'Brain fever' or Meningitis,
or any kind of Brain Injury. Since the Optic Nerve is connected to the
brain, it gets swollen too. A simple Fundus
Exam will help in diagnosis.
Optic Atrophy means loss of function of the Optic
nerve. The nerve becomes totally pale white. This may be the end result of
many Optic nerve insults.
Optic Atrophy can occur due to: