VISALIS 500 from ZEISS Impresses with Reduced Phaco Energy and Improved Chamber Stability

Benefits of Advanced Power Modulation (APM) confirmed in international studies

VISALIS 500, the phaco system within the ZEISS cataract portfolio, impresses with its significant reduction of phaco energy and increased anterior chamber stability. The patient benefits from faster acuity recovery. These are the matching results of several international studies which the medical technology enterprise Carl Zeiss Meditec AG is presenting at this year's summer meeting of the Society of Cataract and Refractive Surgeons (ESCRS) in Amsterdam.

With its Advanced Power Modulation (APMTM), the VISALIS® 500 ensures that the ophthalmologist can clearly reduce the energy entering the lens nucleus during phacoemsulification and control the fluidics more effectively. Unlike traditional systems, APM combines the benefits of the two common ultrasound modulations (pulse & burst), leading to a considerable improvement in the treatment outcome. For the surgeon, this means faster surgery.

"With the APM mode of our VISALIS 500 we are assisting our customers in optimizing their work and in enabling faster acuity recovery for their patients," says Dr. Ludwin Monz, President and CEO of Carl Zeiss Meditec AG.

Experts in Germany, Sweden, France, Spain, Italy and India have subjected the system to detailed testing and compared procedures conducted with a ZEISS VISALIS with APM mode to those conducted with a VISALIS with traditional phaco mode. They all agree that the phaco energy can be clearly reduced with APM by an average of 50 percent. For hart cataracts of grade 4-5, an approximate reduction of as much of 73 percent was achieved.

This energy reduction leads to better protection of the corneal epithelium and therefore to enhanced patient safety. With APM, more patients display a clear cornea and a more healthy cell structure on the first day after surgery. APM also increases chamber stability by 32% compared to conventional pulse technology.

The medical professionals taking part in the studies saw this as a major advantage. Prof. Dr. Norbert Körber of the Eye Center in Cologne, Germany, for example, says: "I am impressed at how easy it is to emulsify even a very dense cataract and yet keep the lens chamber very stable at the same time." The number of patients displaying a clear cornea and good visual performance on the first day after surgery is very convincing."