were about 3 times as many iStent procedures annually as trabeculec-
tomies.
A year ago the iStent got a competitor, Alcon's CyPass. This stent is
6.3 mm long and used to bypass the canal of Schlemm outflow path-
way and carry aqueous directly to the suprachoroidal space, where it
can exit via the sclera and choroidal blood vessels. At the distal end,
the tube is fenestrated so that the aqueous fluid gets diffused evenly.
The CyPass is also approved for use during cataract surgery. In a piv-
otal U.S. clinical trial, among those who responded, 93% of patients
were able to stop their medications.
Most recent is the Xen, from Allergan. This cross-linked gelatin stent
uses the same general aqueous egress pathway as a trabeculectomy,
Express and InnFocus, with one major exception: It starts at the ante-
rior chamber and ends
under the conjunctiva.
This device allows an
ab-interno approach,
meaning that we don't
have to do the exten-
sive dissection and
suturing as we do with
a trabeculectomy. The
stent, made of porcine
material, is 6mm long,
so the blebs these
devices form are large,
flat and positioned
more toward the back
of the eye — all good
qualities. Because of its
M a r c h 2 0 1 7 • O U T PA T I E N T S U R G E R Y. N E T • 5 1
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© 2018 IRIDEX. All rights reserved. IRIDEX, the IRIDEX logo, Cyclo G6, and MicroPulse are
trademarks or registered trademarks of IRIDEX. AD0182 02.2018
Allows non-incisional, non-destructive, and repeatable
treatment for all stages of glaucoma.
Trade-in and limited-time specials available
MicroPulse P3
™
For MicroPulse mode For continuous wave mode
G-Probe
™
G-Probe
™
Illuminate
CYCLO G6
™
GLAUCOMA LASER SYSTEM
One laser, three probes for all stages of glaucoma
