Registered
with the:
Registration no.
P050002029
Glaucoma
Evaluation - Page 3
GDx Examination
What the GDx Examination Shows
The
exam from the GDx prints a color coded "thickness map" of the
nerve fibre layer at the back of the eye. The deviation map identifies
areas where retinal nerve fibre layer thickness is outside normal limits
This information can assist the ophthalmologist to obtain objective values
on the early changes which may help to determine if you have glaucoma.
It also helps to follow and monitor progression in changes of patients
who have already been diagnosed with glaucoma.
In summary, the GDX can:
-
Quantify damage over time in patients with glaucoma.
-
Identify early damage in patients at risk for glaucoma i.e. ocular hypertension
-
Differentiate normal optic nerve changes from glaucomatous damage
-
Detect progression (or stability) of glaucoma.
Click
on image to view an enlarged
version of our Nerve Fiber Analysis
How the GDx examination is used
The GDx can be used to track the progression of glaucoma and can help
determine if you have glaucoma, or other eye diseases. The GDx can be
used at periodic times during the year to see if there are any changes
which have not been seen on the visual field or through the dilated
examination when evaluating the optic nerve head.
Patients who
are at risk for glaucoma should have a GDx done as a baseline in conjunction
with a thorough eye examination by one of our ophthalmologists. Patients
who are at risk include:
- Anyone over the age of 40
- Afro-Caribbeans over 35
- Individuals with a family history of glaucoma
- Diabetics and cardiovascular patients
- Individuals with raised eye pressure but no apparent visual field defect.
- Individuals with hypertension
- Long-term users of steroids
- People who are myopic or short-sighted
- Anyone who has suffered a traumatic eye injury
|
The
information on our website is provided for educational purposes
only and is not meant to replace a consultation with an eye care
professional. The condition of each patient is unique and needs
to be evaluated properly before any decision can be taken. |
