Laboratory scienceEvaluation of the capsular safety of a new hybrid phacoemulsification tip in a cadaver eye model
Section snippets
Cadaver Eye Preparation
Twenty human cadaver eyes were obtained through collaboration with eye banks nationwide. The eyes, which were obtained from donors who had previously consented for organ donation, were harvested within 72 hours after the patients were deceased. The eyes arrived at the Intermountain Ocular Research Center, John A. Moran Eye Center, University of Utah, USA, in moistened chambers, and they were prepared using the Miyake-Apple technique to allow for visualization of the posterior portion of the
Cadaver Eyes
The study comprised 20 human cadaver eyes that had been enucleated from the donors within 1 day of the patient's passing and were subsequently received by the Intermountain Ocular Research Center. The eyes subsequently underwent surgery at a mean of 2.5 days ± 0.8 (SD) after the patient's passing, with a range of 1 to 4 days. The mean age of the donors was 65.2 ± 15.0 years (range 51 to 81 years). Six of the donors were men, and three were women. One of the pairs of eyes received did not
Discussion
The data show there is a significant statistical difference between the groups, with the hybrid tip having a larger torsional power before causing PCR. In other words, the hybrid tip is less likely to cause PCR than the metal tip. The data collected from Experiment 2 show the most statistical significance and seem to be most conclusive. This experiment also most closely mimics the surgical technique that is likely to be employed in routine phacoemulsification, with the phaco tip oriented bevel
First author:
Caleb Shumway, MD, MBA
John A. Moran Eye Center, University of Utah, Salt Lake City, USA
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First author:
Caleb Shumway, MD, MBA
John A. Moran Eye Center, University of Utah, Salt Lake City, USA
Supported in part by an unrestricted grant from Research to Prevent Blindness, Inc., New York, New York, USA, to the Department of Ophthalmology and Visual Sciences, University of Utah, and by a research grant from Alcon Laboratories, Inc., Fort Worth, Texas, USA.