Our guest surgeon today is showing a different type of pupil expansion ring. It is made of metal and it can be inserted through a standard phaco incision. It acts as a speculum to keep the pupil open to a diameter of about 6.5 to 7mm in diameter. The insertion and removal seem reasonable but I have not seen this device in person. With so many options for pupil expansion, the surgeon needs to see all the devices in order to make a decision as to which will work best in her/his hands.
click below to see the iris speculum device in action: