Biomechanical simulation of eye motility disorders & strabismus surgeries.

For more than 19 years already, the research project SEE-KID / CEVD has been dealing with the computer-based simulation of eye motility disorders and their operational treatment. A major goal here is the development of the software system SEE ++ as a new teaching and learning tool which supports vivid thinking, especially with complex functional disorders.

For this purpose, the software provides a biomechanical model of the human eye, which was developed within the project, as well as a 3D virtual patient with a realistic visualization of the shape and movement of the extraocular eye muscles. On this basis, the system allows an interactive simulation of eye motility disorders and their surgical correction.

In addition to a biomechanical model of the human eye, the software also offers the simulation of a three-dimensional “virtual patient“ in combination with a realistic representation of the muscle shape and movement. This allows an interactive simulation of malocclusions and eye muscle operations. In order to further improve the use of software in teaching and training, the 3D representation of the virtual patient has been steadily developed and also includes the integration of the brain as well as the dynamic representation of individual parts of it. Different ways of interacting with each part of the brain, as well as the possibility to draw different classifications on the brain surface and to display medical information, contribute significantly to a better under-standing of the connections between eye and brain. Future research will focus on further development of the biomechanical model and simulation of new surgical techniques.

Since 2010, a new application called AmblyoCare has been developed. It offers standardized and variable tests on the computer for the classic amblyopic treatment methods in order to better capture additional visual characteristics and thus make them more useful for everyday use. The daily work with the patient is made much easier by the flexibility of the software. The practical use of AmblyoCare in the clinic is currently being evaluated in Austria in amblyopia diagnosis and therapy and early-stage screening, where it is increasingly supplementing or even replacing conventional devices such as the nystagmus drums or picture cards.

By certifying AmblyoCare as a medical device in Europe, the software can be used as a medical tool in diagnosis and therapy. In order to make the operation for the everyday clinical routine as simple and efficient as possible and at the same time to be able to offer a comprehensive range of functions, work is continuously being carried out in collaboration with doctors and users to improve the examination options and the user interface.

This ensures on the one hand optimization and stabilization of the application in the clinical and patient-specific environment and on the other hand the addition of medically relevant further investigation possibilities for diagnosis and therapy. Together with the medical partners, therapy templates are integrated which standardize and specify a specific sequence of stimulation methods depending on the clinical picture or the desired diagnosis. Thus, an effective use for physicians and patients should be guaranteed.

The projects of the Research Unit Medical Informatics are funded by the State of Upper Austria through the Strategic Economic and Research Program “Innovatives OÖ 2020.”

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