What is Corneal Hysteresis? A d v a n c e d Te c h n o l o g y ´ ´ hys•ter•e•sis (his t re sis), n., [NL, fr. Gk hystéresis shortcoming, fr. hysterein ¯ ¯ Patient and Operator Friendly > atented dynamic bi-directional applanation process enables P > con-based, user-friendly PC software for I e the only direct measure of corneal biomechanical properties. to be late, fall short, fr. hysteros later] - a retardation of the effect when the push-button simplicity forces acting upon a body are changed (as if from viscosity or internal friction); a property of physical systems that do not instantly follow the forces applied to them, but react slowly, or do not return completely to their original state. > icroprocessor control and objective measurement criteria M eliminate operator variance. > o chin rest and a soft, quiet air puff make the N Ocular Response Analyzer a comfortable, non-intimidating experience for your patients. Ocular Response Analyzer > omprehensive patient management database enables C Corneal Hysteresis (CH) is the difference in the inward automatic data capture of all measurements for analyzing and outward pressure values obtained during the dynamic trends, treatment efficacy, and diurnal variations. > onvenient left-right sliding forehead rest facilitates C fast and comfortable patient positioning. bi-directional applanation process employed by the Ocular Response Analyzer, as a result of viscous damping in the cornea. > ully automatic alignment and measurement provides fast, F repeatable results, allowing any member of your staff Measurement of this phenomenon also enables the calculation www.ocularresponseanalyzer.com to conduct an exam. of Corneal Resistance Factor (CRF), a more complete characterization of the total visco-elastic response of the cornea. Applanation Signal Pressure (air pulse) “Out”Signal Peak “In”Signal Peak Applanation Pressure 1 0 10 Hysteresis Applanation Pressure 2 15 20 25 Time - msec Refractive Surgery Corneal Pathology I I Glaucoma Accurate IOP Reichert, Inc. 3362 Walden Avenue, Depew, NY 14043 Toll-free: 888-849-8955 Tel: (716) 686-4500 Fax: (716) 686-4545 www.reichertoi.com I I Understand the Cornea. Understand the Pressure.

What is Corneal Hysteresis? A d v a n c e d Te c h n o l o g y ´ ´ hys•ter•e•sis (his t re sis), n., [NL, fr. Gk hystéresis shortcoming, fr. hysterein ¯ ¯ Patient and Operator Friendly > atented dynamic bi-directional applanation process enables P > con-based, user-friendly PC software for I e the only direct measure of corneal biomechanical properties. to be late, fall short, fr. hysteros later] - a retardation of the effect when the push-button simplicity forces acting upon a body are changed (as if from viscosity or internal friction); a property of physical systems that do not instantly follow...

Corneal Biomechanics, Accurate IOP, "As we learn more about corneal biomechanics, we realize that there is a lot more to understanding the cornea than simple pachymetry. " Ocular Response Analyzer is the only instrument in the world capable of measuring corneal biomechanical properties and corneal compensated IOP. This valuable new information enhances the ability of eye care professionals to make complex decisions in a number of important areas: "Data from the OHTS are telling us to look at the material properties of the eye, and I believe that they may underlie the basic pathophysiology of...

What is Corneal Hysteresis? A d v a n c e d Te c h n o l o g y ´ ´ hys•ter•e•sis (his t re sis), n., [NL, fr. Gk hystéresis shortcoming, fr. hysterein ¯ ¯ Patient and Operator Friendly > atented dynamic bi-directional applanation process enables P > con-based, user-friendly PC software for I e the only direct measure of corneal biomechanical properties. to be late, fall short, fr. hysteros later] - a retardation of the effect when the push-button simplicity forces acting upon a body are changed (as if from viscosity or internal friction); a property of physical systems that do not instantly follow...