Glaucoma:

Glaucoma refers to a group of eye
conditions that lead to damage to the
optic nerve, the nerve that carries
visual information from the eye to the
brain.

In many cases, damage to the optic
nerve is due to increased pressure in
the eye, also known as intraocular
pressure (IOP).


GLAUCOMA PROCEDURE WITH
ULTRASOUND TESTED
EyeTechCare trials ultrasound
glaucoma procedure.
French company EyeTechCare is
performing clinical trials at Edouard
Herriot Hospital in Lyon on a new
medical technology called EyeOP1 that
directs finely focused ultrasound
beams into the ciliary bodies of a
patient's eye through miniaturised
transducers in a ring-shape probe.
The beams pass through eye tissue
without disruption and reach the target
area through the focal point, which has
a volume of less than 0.3mm3.
According to the company, the
procedure can be administered on an
outpatient basis under local
anaesthesia and it takes around one
minute. A typical procedure will require
the patient to lie down close to the
EyeOP1 command module and the
disposable therapy device will be
placed on the globe of the eyeball.
the main objective of all glaucoma
treatments is to decrease the
intra-ocular pressure, which is the is
the fluid pressure of the aqueous
humor inside the eye. With traditional
surgery, this involves using either a
laser treatment or making cuts in the
eye to reduce the pressure. A surgeon
will need to strike the circumference of
the eye between 20 and 40 times to be
effective.
EyeTechCare claims that these
multiple applications are an occasional
source of error and always lack
reproducibility.
The difference with this company's
method is that the circular EyeOP1
device is capable of treating the entire
circumference of the eye. The device
incorporates six transducers, which are
among the smallest ever manufactured
for therapeutic applications, and each
one is activated around the
circumference sequentially.
With the success of clinical trials
currently being undertaken on a dozen
patients in Lyon, EyeTechCare is then
hoping to do even more extensive
trials of the device in 15 centres
across Europe with a minimum of 100
patients.



A TINY STENT IMPLANTED INTO THE
EYE TO TREAT GLAUCOMA
Surgeons at the Cathedral Eye Clinic
in Belfast fitted patient Mrs McCall's
eye with a device already being
dubbed the 'millimetre miracle'.
The tube, a 'stent', is implanted into
the eye and siphons off excess fluid
that can lead to the blinding eye
condition called Glaucoma
The iStent is a tiny piece of titanium
weighing just 60 microgrammes - and
is the smallest medical device ever to
be implanted into the human body.