TRANSNASAL ENDOSCOPIC
SURGERY - Dr. P. THULASI DAS
ENDOSCOPIC SURGERY FOR ORBITAL LESIONS
ENDOSCOPIC ORBITAL
DECOMPRESSION FOR PROPTOSIS
An autoimmune disorder called dysthyroid orbitopathy affects both
thyroid gland and the orbit. The orbital fat and muscles hypertrophy
and there is an over all increase in the volume of orbital contents,
resulting in proptosis (bulging of the eyes) and inability to close
them.
This inability to close
the eyes may lead to exposure keratosis and blindness. To prevent
this complication Endoscopic orbital decompression offers a simple,
less morbid alternative to the earlier techniques. One and half wall
decompression is possible with this technique and reduction in
proptosis is usually about 5mm.
Click below image to enlarge view |
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Bilateral proptosis
due to Dysthyroid orbitopath |
He is not able
to close his eyes |
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He is able to close his eyes after endoscopic
orbital decompression |
Some times, the over
all increase in orbital volume exerts pressure on the optic nerve
with diminished vision. In such cases it is possible to do both
optic nerve and orbital decompression using Endoscopic Techniques
and vision can be salvaged. Some times extrinsic lesions pressing on
the orbit can produce proptosis, for which Endoscopic orbital
decompression can be done.
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