A real-time sensory technology to assist surgeons in determining the optimal level of ultrasound energy to prevent temporary or chronic corneal endothelial edema.


Modern cataract extraction is done using a phacoemulsification device which utilizes ultrasound energy to disassemble the cataract. The energy

is produced by the device’s tip which is located in the anterior chamber of the eye. Above the phacoemulsification tip, is the corneal endothelium. In cataract surgery, this layer is virtually always damaged to some extent due to ultrasound energy, mechanical damage by fast moving lens fragments, or by the inadvertent touch of surgical tools.

Corneal endothelial damage can cause corneal edema. Postoperative mild corneal edema is very common following cataract surgery, and is commonly resolved within days.In 1.5-2% of surgeries, chronic corneal edema causing pain and loss of vision, can occur, requiring corneal transplantation.


Prof. Yoav Nahum, Rabin Medical Center

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Avital Pritz, Director of Medical Devices and Digital Health

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We aim at performing intraoperative monitoring of the corneal tissue during cataract surgery, and to provide the surgeon with real-time alerts that will prevent and decrease endothelial damage, and improve the clinical outcome.

Like real-time collision avoidance systems used in cars in recent years, our system will alert the surgeon when the phaco probe is located too close to the corneal endothelium, or when real-time or accumulated substitute measures of tissue stress reach a pre-established threshold.

Cataract surgery is the most common surgery performed in medicine. In the US alone, 3.6 Million surgeries are done annually, and 24 Million surgeries are done annually worldwide. The Global Cataract Surgery Devices Market is expected to grow with population aging from USD 5,460.48 Million in 2019 to USD 8,206.33 Million by the end of 2025 at a CAGR of 7.02%.

Our goal is to create a new class of medical devices which will become a standard in cataract removal procedures, improving the safety of this surgery. Our device will change the way that cataract surgeons operate, the same way that real-time collision avoidance systems are changing the way we drive in our cars

The project received a “Kamin” grant and is now starting its 2nd year.

A prototype was developed and is being validated under pre- clinical trials

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