gms | German Medical Science

22nd International Congress of German Ophthalmic Surgeons

18. to 21.06.2009, Nürnberg

Phaco system in your pocket

Meeting Abstract

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  • Makoto Kishimoto - Kishimoto Eye Clinic, Ophthalmology, Shiga, Japan

22. Internationaler Kongress der Deutschen Ophthalmochirurgen. Nürnberg, 18.-21.06.2009. Düsseldorf: German Medical Science GMS Publishing House; 2009. Doc09docVI 1.4

doi: 10.3205/09doc069, urn:nbn:de:0183-09doc0690

Published: July 9, 2009

© 2009 Kishimoto.
This is an Open Access article distributed under the terms of the Creative Commons Attribution License ( You are free: to Share – to copy, distribute and transmit the work, provided the original author and source are credited.



Purpose: The potential of research into irrigation as a way of contributing to the progress of cataract surgery.

Method: I modified an i-Pod amplifier and attached it to the hand piece as shown here, offering power over 200 volts. In this PEA experiment using a porcine eye and the ultrasound machine, there is no aspiration pump. This is Free Flow Phaco.

Results: Even with low power oscillation, this simple machine can accomplish the mission. PEA is operable using irrigation only, without an aspiration pump. The nucleus can be removed just using free flowing perfusion, without any mechanical aspiration at all.

Conclusion: If we recognize the importance of irrigation and carry out dedicated research, we will be able to make major contributions to the progress of cataract surgery in the future.