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Slit Lamp / Documentation 
Autorefractor 
Myopia Master® 
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Perimetry 
Dry Eye 
The revolutionary Corvis® STL records the reaction of the cornea to a defined air pulse with a newly developed high-speed Scheimpflug-camera that takes over 4 300 images per second. IOP and corneal thickness can be measured with great precision on the basis of the Scheimpflug images.
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OCULUS Corvis® STL |
The new measuring technique uses an ultra-high-speed Scheimpflug camera in combination with an air pulse to determine IOP values with great precision. Initial studies have confirmed the high degree of reproducibility in comparison to that obtained by Goldmann applanation tonometry and non-contact tonometry1).
The measurement principle employed here ensures results uninfluenced by such factors as insufficient tear film or patient positioning. Automatic release and specified measurement quality guarantee user-independent data. Up to 6 measurements can be taken, and the average IOP is printed out or displayed. IOP measurements can be corrected with the aid of pachymetry-based correction tables including the Dresden correction table and the new Spoerl correction table, which takes patient age into account.
An integrated Scheimpflug camera enables the Corvis® STL to take precise measurements of corneal thickness. Integrated correction tables (Dresden, Ehlers …) also allow for correction of IOP measurements according to central corneal thickness. The Corvis® STL determines corneal thickness along the entire horizontal sectional plane as well as apical and minimal corneal thickness.
1) Hong J, Xu J et al.:. A new tonometer – the Corvis® STL tonometer: clinical comparison with noncontact and Goldmann applanation tonometers. Invest Ophthalmol Vis Sci. 2013 23;54(1):659-65
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The OCULUS QM system is certified in accordance with ISO 13485 and (EU) 2017/745 (MDR). |
