Southwestern Eye Center in Mesa, Ariz.
"We've been using it since it was first marketed," says Jackie
Dayton, RN, supervisor at Surgery Center of Ophthalmology
Consultants in Fort Wayne, Ind. "Our doctors are very pleased with
the ease of insertion and removal. And the manufacturer hasn't raised
its price (about $125) in 5 years."
• I-Ring Pupil Expander (Beaver-
Visitec). This single-use device
comes with its own inserter
attached, so it can be placed and
removed with one hand. It's made
from pliable polyurethane, and
unlike some other devices, it
engages the iris completely and
maintains 360-degree contact, cre-
ating a uniform, circular 6.3 mm
diameter field. Outside the ring, 4 corners help hold the iris in place.
Each has a positioning hole that's positioned away from the iris, there-
by ensuring that the Sinskey hook used to engage and disengage the
channels won't injure the iris.
It's designed to be easy for surgeons to master, and gentle on iris tis-
sue while it firmly supports the entire pupillary margin.
"I like it because it's easy to deploy and remove, with minimal trau-
ma to the iris," says Oswald Rondon, MD, of the Eye Clinic
Surgicenter in Billings, Mont. "During surgery it's quite stable and
doesn't interfere with my maneuvers or fluidics."
• Iris Expander (Oasis Medical). This pupil expander is a more eco-
nomical single-use polypropylene device that's available in 6.25 and 7
mm sizes. The disposable ring expands the pupil and maintains access
and visibility throughout surgery. It comes with a pre-attached dispos-
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• The Beaver-Visitec I-Ring Pupil Expander is designed
to be easy to insert and remove, easy for surgeons to master,
and gentle on iris tissue.
