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Managing small pupils during phaco cataract surgery, part 4
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In this series of videos, Alessandro Galan, MD, shows different ways to deal with small pupils during cataract surgery.
Part 4: Small pupil — dilator ring
The best and safest way of obtaining pupil dilation is by using a special pupil expander, the Beaver-Visitec I-Ring. Compared with other rings currently available on the market, this device is easier to insert and remove. Insertion is performed through a dedicated injector after filling the anterior chamber with viscoelastic. The I-Ring expands the pupil to a diameter of 6 mm, which remains stable during surgery. Phacoemulsification, aspiration and IOL implantation can be performed using whatever technique the surgeon feels comfortable with. The ring is removed with the OVD still in the chamber, through the same injector used for insertion.
Although the ring is extremely pliable and the traction is evenly distributed along the circumference of the pupil, immediately after removal of the ring, the pupil sphincter may temporarily show indentations.
To see the other parts of this series click here: Part 1, Part 2, Part 3.
- For more information:
- Alessandro Galan, MD, OSN Europe Edition Board Member, is head of ophthalmology at Sant’Antonio Hospital, Padua, Italy. He can be reached at can be reached at Ospedale Civile Sant’Antonio, Via Facciolati 121, Padova, Italy; email: alessandro.galan@gmail.com.
Disclosure: Galan reports no relevant financial disclosures.