What is Papilledema?
♦ A floating black speck, resulting from an
Papilledema can narrow the range of your
This condition is known as pseudotumor be-
enlarged blind spot in the field of vision, usually
peripheral vision. Your doctor may check your
cause it exhibits the same symptoms caused by a
apilledema is a rare condition that involves the
in both eyes. Everyone has a “blind spot” in the
range of vision by tracking your eyes as they follow
brain tumor, causing papilledema. A normal brain
P swelling of the optic nerve due to
back of the eye where the optic nerve connects to
a moving object, such as a pen light. Or he/she may
scan indicates that the papilledema may be due to
the retina. Normally, it is so small that
involves looking through a lens and using a hand
clicker to indicate how often you see flashing lights
Because papilledema can result from such a
wide variety of causes, it is very important that you
see an ophthalmologist or neurologist as soon as you
If your doctor diagnoses papilledema, he/she
begin to notice possible symptoms of papilledema.
will want to determine the cause by ordering tests
that examine the brain: either a magnetic resonance imaging (MRI) or a computed tomography (CT Treatment
Treatment varies depending on the causes of the
Detection and
In addition, a spinal tap can measure the exact Diagnosis
pressure of the CSF within the central nervous sys-
♦ If a brain scan shows that you have a brain tumor or lesion, your doctor will perform a
biopsy, followed by radiation treatments, laser
papilledema. Using an instrument called an ophthal-
The CSF circulates throughout the ventricles of
moscope, your doctor can examine the optic nerve
the brain and the cavity of the spinal cord. This fluid
where it connects with the retina. (He/she may need
Papilledema can result from a wide range of causes,
♦ Brain infections can be treated in a variety of
functions as a shock absorber for the central nervous
to dilate your pupils first using eye drops.)
ways, ranging from medication to surgery,
system, protecting it from sudden jarring. The CSF
depending on the severity of the condition.
also surrounds the optic nerve that connects the
♦ High blood pressure (hypertension) can be
brain to the back of the eye through the retina.
♦ Brain infections such as brain abscess, meningi-
controlled through medication and monitored by
tis, or encephalitis—these can lead to brain
a healthcare professional; however, if papille-
Even a slight increase in intracranial pressure
dema is present, immediate hospitalization may
can compress and choke the optic nerve, pushing it
into the back of the eyeball, causing papilledema.
Papilledema almost always occurs bilaterally, that
♦ Inflammatory conditions such as multiple
multiple sclerosis can be controlled through
anti-inflammatory agents such as steroid medi-
cations (prednisone or methylprednisolone) or
Symptoms Pseudotumor cerebri
♦ A pseudotumor cerebri condition may be
Papilledema can also result from a much less serious
treated by a repeat spinal tap to gradually
relieve the increased cranial pressure by
condition known as pseudotumor cerebri. In this
case, increased intracranial pressure results from an
removing excess CSF. Your doctor may also
overproduction of CSF rather than swelling of the
prescribe certain medications such as acetazola-
♦ Brief episodes (30 seconds or less) where
brain or other serious problems. This condition is
mide (brand name Diamox) to decrease the
vision in both eyes appears to be veiled in
often seen in overweight teenage girls or women
amount of CSF that your body is producing.
who are experiencing hormonal changes due to men-
Weight loss and a low fat diet may be recom-
struation, pregnancy, use of birth control pills, or
mended as well. Occasionally, surgery may be
♦ Visual blackouts caused by sudden change of
required to reduce excess spinal fluid if other
position (such as standing up suddenly, cough-
ing, or straining of the chest or abdomen)
Prognosis See your doctor … Neurological Contact your doctor immediately if you are pregnant or are taking birth control pills and Associates of
If the cause of papilledema is quickly identified
if you experience any of the following symptoms,
are experiencing any of these symptoms. Washington
and treated, the swelling of the optic nerve may
especially in combination with one another:
gradually reduce in as soon as six-to-eight weeks. However, recovery make take longer depending
♦ Enlarged blind spots or vision “blackouts”
on how much treatment is needed (particularly in
For more information … Papilledema
If you are diagnosed with pseudotumor cere-
bri, your papilledema condition may be chronic
♦ Aetna InteliHealth at www.intelihealth.com,
Causes and Treatment
and could result in eventual loss of peripheral vision. Therefore, it is essential that you be moni-
♦ The National Institute of Neurological Disorders
and Stroke at www.ninds.nih.gov or call 800-352-9424.
Glossary
♦ National Organization for Rare Disorders at
www.rarediseases.org or call 203-746-6481.
Blind spot – area where the optic nerve Ophthalmoscope – hand-held instrument
that shines a bright light into the pupil used to
Brain lesion – injury to the brain. Optic disk – optic nerve head where the optic Cerebral edema – swelling of the brain due to
nerve enters the eyeball; appears as a small
National Eye Institute, National Institute of Health Ref #NEA05
Central nervous system – brain and spinal Optic nerve – short but thick neural pathway
that sends visual signals from the eye to the
St. Luke’s Cataract and Laser Institute
www.stlukeseye.com/anatomy/OpticNerve.asp
Cerebrospinal fluid (CSF) – fluid that flows
through the ventricles of the brain, spinal cord,
Papilledema – condition of increased cranial
pressure indicated by swelling of the optic
CT or CAT scan – X-ray technique that uses
computer technology to show cross-sectional
Peripheral vision – outside edge of the field Intracranial pressure – pressure inside Pseudotumor cerebri – condition in which
exerted on the brain, spinal cord, and optic
papilledema is caused by the production of
nerves, often caused by brain tumor or swelling,
Retina – light-sensitive membrane covering the Neurological Magnetic resonance imaging (MRI) –
back of the eye and attached to the optic nerve.
Associates of
diagnostic technique that uses a magnetic field
Washington
(rather than radiation) to produce pictures of
Spinal tap – lumbar puncture performed to
measure pressure of cerebrospinal fluid.
Ophthalmologist – physician specializing in the Ventricles – spaces within the brain of the
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PROPRIETE INDUSTRIELLE : LES ENTRETIENS DE PARIS 2006 Propriété Industrielle et Création de Valeur : Valoriser l'Actif Immatériel de l'Entreprise JEUDI 18 MAI 2006 INTRODUCTION François LOOS , Ministre délégué à l’Industrie Avec Erik IZRAELEWICZ , Directeur adjoint de la rédaction, Les Echos Erik IZRAELEWICZ , Directeur adjoint de la rédaction, Les Echos