Add to Cart Compare Quick view CATS® Tonometer Prism from Reichert® MSRP: Now: $190.00 Was: The New Shape of IOP. A New, Modern, Patented Prism Designed for Your Goldmann Tonometer. CATS® Tonometer Prism features a unique, patented, dual-curved surface design that successfully reduces measurement errors caused by corneal biomechanics,... MSRP: Now: $190.00 Was: Add to Cart Compare Quick view Qty in Cart: 0 Quantity: Decrease Quantity: Increase Quantity: Price: MSRP: Now: $190.00 Was: Subtotal: Add to Cart