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BMC Ophthalmology
Published in: BMC Ophthalmology 1/2014

Open Access 01-12-2014 | Research article

Evaluation of a new method of irrigation and aspiration for removal of ophthalmic viscoelastic device during cataract surgery in a porcine model

Authors: Arisa Mitani, Takashi Suzuki, Yoshitaka Tasaka, Takahiro Uda, Yukako Hiramatsu, Shiro Kawasaki, Yuichi Ohashi

Published in: BMC Ophthalmology | Issue 1/2014

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Abstract

Background

To determine if a method for irrigation and aspiration (I/A) during cataract surgery provides effective removal of ophthalmic viscoelastic device (OVD).

Methods

Japanese porcine eyes were used to evaluate I/A performance with Technique 1 (the I/A tip placed on the center of the anterior surface of the IOL), Technique 2 (the I/A tip alternately pressed near the edge of the IOL optic anterior surface on one side and then the other to tilt the IOL back and forth), and Technique 3 (the I/A tip inserted behind the IOL optic, between it and the posterior capsule). Techniques 1 and 2 were compared using the Miyake-Apple posterior view video technique to visualize the flow of irrigation fluid containing triamcinolone acetonide particles behind the IOL. To check the efficacy of OVD removal from behind the IOL for of all three I/A techniques, OVD with fluorescein beads were inserted inside the lens capsule before implantation of the IOL. After each I/A technique, eyes were prepared for Miyake–Apple viewing and pictures of the lens capsule were taken using fluorescent microscopy. Residual fluorescein beads in the capsular bag were analyzed.

Results

Technique 1 resulted in a straight flow of fluid behind the IOL, while Technique 2 resulted in a vortex flow. The average amount of OVD retained inside the capsule after using Technique 2 or 3 was significantly lower than after using Technique 1 (p <0.0001).

Conclusions

Technique 2 proved to remove more effectively fluorescein bead-labelled OVD under the IOL than Technique 1.
Appendix
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Metadata
Title
Evaluation of a new method of irrigation and aspiration for removal of ophthalmic viscoelastic device during cataract surgery in a porcine model
Authors
Arisa Mitani
Takashi Suzuki
Yoshitaka Tasaka
Takahiro Uda
Yukako Hiramatsu
Shiro Kawasaki
Yuichi Ohashi
Publication date
01-12-2014
Publisher
BioMed Central
Published in
BMC Ophthalmology / Issue 1/2014
Electronic ISSN: 1471-2415
DOI
https://doi.org/10.1186/1471-2415-14-129

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