CATS Tonometer Prism™ Now Available for Order in the U.S.

TUCSON, Arizona, October 23, 2019 – The CATS Tonometer Reusable Prism™ is now available for order through a variety of key distributors in the United States. A breakthrough in intraocular pressure (IOP) accuracy, the CATS Tonometer Prism™ establishes a new standard in reliable Goldmann IOP measurement.

The FDA cleared, patented applanation surface of CATS Tonometer Prism™ delivers an immediate 94% improved IOP accuracy for the majority of the population, based upon peer reviewed research.* It is designed to seamlessly integrate into a clinician’s practice with no additional cost, no new training, and to streamline patient care.

“For decades GAT IOP measurement errors have been well known to the clinician community,” says Sean McCafferty, MD, FACS and CEO of CATS Tonometer LLC. “We believe the CATS Tonometer Prism™ will rapidly become the new standard of care and greatly improve the recognition and treatment of ocular disease.”

“The CATS Tonometer Prism™ provides more accurate IOP assessment, sparing patients and clinicians from the damaging consequences of over and under estimation of IOP,” according to Nathan Radcliffe, MD and CATS Tonometer LLC Advisor.

John Berdhal, MD, a CATS Tonometer, LLC Advisor, states, “The CATS Tonometer Prism™ provides more accurate IOPs with an easier to use design, because it compensates for corneal biomechanics.”

This innovative device has won numerous national and international awards and grants from scientific, technological and industry resources, underlining the need for this technology in the marketplace:

  • National Institutes of Health (NIH) SBIR / STTR Phase II $1.1M grant recipient
  • First place at Ophthalmology Futures Forums Shark Tank contest in Paris (September 2019)
  • Second Place winner of the American Society of Cataract and Refractive Surgery (ASCRS) Winning Pitch Challenge
  • Selected to participate in the Flinn Foundation’s 2019 Bioscience Entrepreneurship Program
  • Arizona Innovation Challenge Fall 2019 Awardee
  • Selected to participate NIH Commercialization Accelerator Program (CAP)

The CATS Tonometer Prism was introduced this month at American Academy of Ophthalmology’s (AAO) Annual Meeting, and is now available for order through distributor partners including:

  • Walman Instruments
  • Hilco Vision
  • Lombart Instrument
  • Eye Care & Cure
  • Precision Vision
  • Veatch Ophthalmic Instruments

Please visit for a full list of distributors and their information.


CATS Tonometer LLC is a privately held company located in Tucson, Ariz., specializing in engineering optical and ophthalmic innovations to drive better ocular disease treatment. Based on peer reviewed studies, the CATS Tonometer Prism™ immediately improves IOP accuracy by 94% for the majority of the population* using a concave-convex surface. It captures critical central corneal thickness (CCT), corneal hysteresis, tear film and corneal curvature data to provide significantly more accurate IOP measurements. This IOP measurement innovation promises to improve the diagnosis and treatment of all ocular diseases.

*For more information and research materials, please visit

Media Contact:

Nannon Roosa, PMP, CMPE, CPA

President, CATS Tonometer™ LLC


Posted in AZBio News.