What is a Random Forest? A random forest approach is a modern, state of the art machine learning approach. A random forest consists of 500 different uncorrelated decision trees. A decision tree is a hierarchical tree-like model of decisions. The ...

In combination with the Corvis® ST the TBI can be calculated based on any device of the Pentacam family: Either a standard Pentacam®, a Pentacam® HR or the Pentacam® AXL. The only requirement is a software license for the software ...

Prof. Renato Ambrósio from Brazil developed an index that combines tomographic and biomechanical parameters in order to reach maximal accuracy. Based on a so-called random forest algorithm – a modern machine learning approach – an overall risk score is provided ...

The CBI was developed in order to detect early biomechanical changes in case of an early ectasia. It is based on a logistic regression formula including different Dynamic Corneal Response (DCR) parameters, the Stiffness Parameter and the corneal thickness profile ...

The Corvis® ST software contains a database with normative values for the DCR parameters for different IOPs. A bIOP value is calculated for each patient after a Corvis® ST measurement. As a result, the patient's measured DCR parameters can be ...

Traditional non-contact tonometers are tear film dependent as the measurement procedure is based on reflection technology. Corvis® ST incorporates Scheimpflug photography during its measurement procedure and is therefore not dependent on tear film, fixation or decentred apex. Even highly irregular ...

The biomechanical corrected IOP (bIOP) takes corneal thickness, age and the biomechanical properties of the cornea into consideration. This enables an accurate IOP estimation even in case of altered biomechanical properties. The equation was derived based on so-called finite element ...

The Corvis® ST is the first device in clinical practice that provides a parameter for corneal stiffness. Corneal stiffness is a term to describe the overall rigidity of the cornea – it is a measure of the resistance against elastic ...