The Ocular Response Analyzer (ORA) is the only instrument in the world capable of measuring Corneal Hysteresis (CH); an indication of the biomechanical properties of the cornea. This information is different from thickness or topography, which are geometrical attributes of the cornea. CH represents a tissue property, which provides more comprehensive information about ocular biomechanics. There are over 225 publications about ORA in the peer-reviewed literature
The CH measurement provides independent information that aids in the diagnosis and management of glaucoma. In cornea and refractive surgery, the Ocular Response Analyzer enables physicians to better identify eyes at risk of keratoconus. Finally, corneal biomechanics are what really influence the accuracy of tonometers. ORA’s ability to measure biomechanical properties of the cornea enables the device to provide corneal compensated IOP, called IOPcc, which has been proven to be less influenced by corneal properties than Goldmann or other methods of tonometry.