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Non-Contact Tonometer


Non-Contact Tonometer is an advanced diagnostic device used in eye care to measure the biomechanical properties of the cornea. The cornea is the clear, dome-shaped tissue that covers the front of the eye, and it plays a crucial role in the eye's ability to focus light.



The Non-Contact Tonometer measures several parameters of the cornea, including corneal hysteresis (CH) and corneal resistance factor (CRF). CH is a measure of the cornea's ability to absorb and dissipate energy when subjected to an external force, such as the pressure from an air puff during a standard eye exam. It is thought to be related to the elasticity and damping properties of the cornea. CRF, on the other hand, is a measure of the overall resistance of the cornea to deformation and is thought to be related to the structural integrity of the cornea.



The Non-Contact Tonometer also measures intraocular pressure (IOP), which is the pressure inside the eye. There are two methods of measuring IOP using the Non-Contact Tonometer: Goldmann-correlated intraocular pressure (IOPG) and corneal-compensated intraocular pressure (IOPcc). IOPG is a measure of intraocular pressure as determined by the traditional Goldmann applanation tonometry method. IOPcc, on the other hand, is a newer method of measuring intraocular pressure that takes into account the biomechanical properties of the cornea and adjusts for its thickness and rigidity.



By measuring CH, CRF, IOPG, and IOPcc, the Non-Contact Tonometer provides a more comprehensive assessment of the health of the cornea and the intraocular pressure of the eye. This information can be particularly useful in the diagnosis and management of conditions such as glaucoma, where accurate measurement of intraocular pressure is essential for effective treatment.



In addition to glaucoma, Non-Contact Tonometer can also be used to monitor the health of the cornea and the effects of corneal surgeries, such as LASIK. By providing a more comprehensive assessment of the cornea, the ORA can help eye care professionals make more informed decisions about the best course of treatment for their patients.



Overall, Non-Contact Tonometer is an important tool for eye care professionals, providing valuable information on the biomechanical properties of the cornea and the intraocular pressure of the eye. Its advanced features and ability to provide a more comprehensive assessment of eye health make it a valuable addition to any eye care practice, helping to improve patient outcomes and prevent vision loss.


Non-Contact Tonometer IOP waveform

Ocular Response Analyzer IOP waveform.png
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