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    CATS® Disposable, Sterile Tonometer Prism for Goldmann/Perkins Tonometers – 100/Box ‐ The New Shape of


    CATS® Tonometer Prism is designed to deliver accurate Goldmann IOP measurements for all patients. For

    sterility and protection, the disposable CATS® Prism has a new Snap‐FitTM feature enabling true one‐hand

    installation and disposal of the prism tip.

    The CATS® Prism seamlessly integrates with all Goldmann and Perkins tonometers, and its ergonomic design

    enables confident, comfortable use with no change to the clinician’s measurement technique Simply exchange

    the prism to modernize your Goldmann tonometer measurement.

    Saving and preserving sight is the goal of every eye care practitioner. Unfortunately, IOP measurement is

    compromised due to errors caused by corneal biomechanics for 50% of patients. Traditional Goldmann prisms

    “flatten” the cornea, which amplifies intracorneal stress during the measurement process and distorts the IOP


    The CATS® Prism’s dual‐curved surface reduces measurement errors caused by corneal thickness, corneal

    hysteresis, curvature, and tear film. This curvature‐matching principle of the CATS® Prism, “cups” the cornea,

    reducing the impact of corneal thickness and corneal biomechanics on the IOP measurement. Additionally, the

    rolled outer edge minimizes tear film adhesion that plagues traditional Goldmann prisms.

    Made in the USA. 100/Box


    • The Snap‐FitTM feature allows for true one‐handed installation and disposal of the prism tip
    • Preserves sterility and clinician protection
    • Designed for improved IOP measurement accuracy
    • Ergonomic design enables confident, comfortable use in the clinic
    • Integrates seamlessly with all Goldmann and Perkins type tonometers by simply exchanging the prism
    • No change to clinician measurement technique
    • Multiple scientific peer‐reviewed studies validate performance:
      • See / for details
    • Made in the USA


    • SKU package dimensions: 9.25′′ (W) x 7.25′′ (D) x 3.25′′ (H)
    • SKU Weight: .75 lb
    • Country of Origin: USA
    • Manufacturer SKU: CATS‐D, CATS