Revolutionizing Cataract Diagnosis with High-Frequency Ultrasound Imaging

Revolutionizing Cataract Diagnosis with High-Frequency Ultrasound Imaging

Industry: Ophthalmology, specifically in the diagnosis and treatment of cataracts.

Challenge: Cataracts cause clouding of the eye lens, impairing vision. Effective cataract
surgery requires understanding the hardness of the lens, which is challenging to measure
accurately.

Extraordinary Aspects of the Paper: The study demonstrated the potential of Nakagami
imaging, a novel ultrasound technique, to accurately quantify the hardness of cataract lenses.
This technique showed a significant improvement over traditional B-mode imaging and
integrated backscatter measurements, providing both global and local assessments of lens
hardness.

Equipment & Sensors Used:

GaGe Digitizer: CS14200, 14-bit analog-to-digital converter from Gage Applied Technologies,
sampling rate of 200 MHz.

Ultrasonic Transducer: NIH Ultrasonic Transducer Resource Center, USC, CA, 35 MHz
central frequency.

Amplifier: Low-noise amplifier, Miteq 1166, Miteq Inc., Hauppauge, NY.

Filter: Band-pass filter, Model BIF-50, Mini-Circuits, Brooklyn, NY.

Pulser: AVB2-TB-C, Avtech Electrosystems Ltd, Ottawa, Ontario, Canada.

Motor Stage: Parker Hannifin Corp., Cleveland, OH.