AMO Signature Pro with Horizontal Chop and a Dense Nucleus

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This video presents the case of a 93-year-old patient with bilateral, hand-motion cataracts. Steven Dewey, MD, uses the Signature Pro and MST chopper with a horizontal chop method to break apart the very dense nucleus.

Posted: 12/07/2016

AMO Signature Pro with Horizontal Chop and a Dense Nucleus

This video presents the case of a 93-year-old patient with bilateral, hand-motion cataracts. Steven Dewey, MD, uses the Signature Pro and MST chopper with a horizontal chop method to break apart the very dense nucleus.

Posted: 12/07/2016

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Comments

jhon45 brisstom

4 years ago

This is the very nice observed for the article related nucleus and how to manage for the during artificial complex . <a href="https://www.benchmatrix.com/">Risk Nucleus!</a>

Steve Dewey

5 years ago

Good observation! I'm impressed you noticed the CASE option wasn't activated during this surgery. I typically use the CASE feature to improve chamber stability, and find it particularly useful in the middle-density nuclei where a challenging occlusion is more commonly achieved. While you could make the argument that the higher vacuum level improved the efficiency of the surgery in this very dense nucleus, I don't know that the mild improvement in efficiency is generally worth the potential risks associated with post-occlusion surge. In this particular situation, the SignaturePRO was delivered just prior, and this was the first or second week of its use in our OR. With the Malyugin ring in place, the iris doesn't reveal any chamber instability. As the other procedures both before and after this one had really stable chambers, I wasn't alerted that CASE was off. When I engaged the capsule, I was certain it was just my technique, and I was especially pleased I noticed the wrong needle had been provided me at the beginning of the case and took the time to make the change. It was only after I had the chance to review the video that I noticed CASE hadn't been enabled. We very quickly remedied that situation, and have used CASE for all my peristaltic vacuum settings since that time.

on nicolae-sebastian

5 years ago

Have you activated the CASE option in this situation,or just prefered to work at very high vacuum levels for increased efficiency ?