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New aberrometer helps determine whether patient is good premium IOL candidate
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KOLOA, Hawaii – A new aberrometer accurately measures optical alignment and provides analyses ofcorneal aberrations to solve postop problems and improve toric IOL precision, a presenter said here.
“The iTrace is the only aberrometer that can create an entire wavescan either over the pupil center or on the visual axis,” Sonia H. Yoo, MD, Professor of Ophthalmology, Bascom Palmer Eye Institute, said during a mini-symposium on astigmatism correction at the Hawaiian Eye meeting. “This can help you determine whether or not a patient will be a good or bad premium lens candidate.”
Sonia H. Yoo
The iTrace aberrometer can also help diagnose postoperative problems, such as lens tilt, decentration or off-axis or under- or overpowered toric lenses, Yoo said.
“The iTrace allows us to not only look at SimKs but wavefront Ks, which are arguably more accurate in determining proper toric power,” she said.
In comparing SimK vs. wavefront K, physicians can see if there is a difference which will help guide them in which lens power to choose, Yoo said.
“New this year is the iTrace Position Verification System, which allows us to compare our preoperative plan with our intraoperative positioning of the lens via the surgical video grab,” she said. “And here again we can determine whether or not the actual toric position meets our predetermined plan.” –by Daniel Morgan
Disclosure: Yoo is a consultant for Abbott Medical Optics and Alcon Laboratories.