Experience with a novel polyurethane, hinged pupil expansion device for the management of small pupils during cataract surgery
Session Details
Session Title: Cataract Surgery Instrumentation/Surgical Devices
Session Date/Time: Sunday 11/09/2016 | 10:30-12:00
Paper Time: 11:00
Venue: Hall C1
First Author: : H.Uy PHILIPPINES
Co Author(s): : K. Kenyon R. Pineda
Abstract Details
Purpose:
To report the efficacy and safety of a new pupil expansion device for enlarging small pupils during phacoemulsification cataract surgery.
Setting:
Ambulatory surgical center (Peregrine Eye and Laser Institute, Makati, Philippines)
Methods:
Interventional case series. Five eyes of 5 patients with small (< 4.0 mm), maximally dilated, pupils underwent phacoemulsification cataract surgery and posterior chamber intraocular lens implantation. The pupil was expanded using a novel, single-use, hinged, polyurethane device (I-ring, Beaver Visitec International, Waltham, MA) designed to provide 6.3 mm pupil diameter. The following data were obtained: pre- and postoperative undilated pupil diameter (PD), pre- and postoperative dilated PD, rate of successful pupil expansion and adverse events (eg. Pupil irregularity, sphincter tears, bleeding).
Results:
The I-ring was successfully deployed in all eyes causing consistent pupil expansion to 6.0 mm. The mean pre- and postoperative undilated PD were 1.2 mm and 1.8 mm, respectively. The mean pre- and postoperative PD were 3.8 mm and 4.2 mm, respectively. All eyes underwent successful and uneventful cataract surgery. All pupils had minor amounts of postoperative pupil irregularity (< 180 degrees). No other adverse events were reported.
Conclusions:
The I-ring effectively and safely expands the pupil diameter in order to aid surgeons in performing cataract surgery in eyes with small pupils. Use of the I-ring causes a permanent but asymptomatic increase in undilated and dilated PD. The I-ring is a useful device for small pupil management.
Financial Disclosure:
NONE
