Thomas Kaltofen

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The consequences of changes in the oculomotor system on the three-dimensional eye movements are difficult to grasp. Although changes to the rectus muscles can still be approximately understood with simplified geometric models, this approach no longer works with the oblique muscles. It is shown how SEE++, a biomechanical model of the oculomotor plant that(More)
SEE-GRID is based on the SEE++ software system for the biomechanical simulation of the human eye. The goal of SEE-GRID is to extend SEE++ in several steps in order to develop an efficient grid-based tool for " Evidence Based Medicine " , which supports surgeons in choosing optimal surgery techniques for the treatment of certain eye motility disorders.(More)
Fig. 1. The Output of the " SEE++ to Grid Bridge " and the GUI of SEE++ Abstract— " Grid-Enabled SEE++ " is based on the SEE++ software system for the biomechanical simulation of the human eye. " Grid-Enabled SEE++ " extends SEE++ in several steps in order to develop an efficient grid-based tool for " Evidence Based Medicine " , which supports surgeons in(More)
PURPOSE Eye motility disorders with axial high myopia and an enlarged globe are often characterized by a hypotropia of the affected eye, usually referred to as heavy-eye syndrome. Based on an intuitive interpretation of magnetic resonance (MR) images, the cause of the hypotropia has typically been assigned to the rectus muscles. In this study, the(More)
We developed a generic approach for modeling tubular tree structures as triangle meshes for the extension of our biomechanical eye model SEE-KID with a visualization of the orbital cranial nerves. Since three of the orbital nerves innervate extraocular eye muscles and move together with them, the structure must also support the partial translation and(More)
Our aim is to demonstrate the benefits of using a computer model to support the clinical diagnosis of complex eye motility disorders. For diagnosis and differential diagnosis we compared the clinical data of a patient with suspected monocular elevation deficiency (MED) and the corresponding computer simulation with the simulations of rectus superior palsy,(More)
Collision and containment detection between three-dimensional objects is a common requirement in simulation systems. However, few solutions exist when exclusively working with deformable bodies. In our ophthalmologic diagnostic software system, the extraocular eye muscles are represented by surface models, which have been reconstructed from magnetic(More)
INTRODUCTION Latest measurements of the vestibulo-ocular reflex (VOR) allowed the integration of the simulation of the Bielschowsky head-tilt test (BHTT) into the SEE++ software system. SEE++ realizes a biomechanical model of the human eye in order to simulate eye motility disorders and strabismus surgeries. With the addition of the BHTT it can now also be(More)
SEE-GRID is based on the SEE++ software for the biomechanical simulation of the human eye. The goal of SEE-GRID is to adapt and to extend SEE++ in several steps and to develop an efficient grid-based tool for``Evidence Based Medicine'', which supports the surgeons to choose the best/optimal surgery techniques in case of the treatments of different syndromes(More)
In the previous phase of the SEE-GRID project, we implemented the "SEE++ to Grid Bridge", via which normal SEE++ clients are able to access and exploit the computational power of the Austrian Grid. This document discusses the theory and the design of a new functionality of the SEE-GRID system called pathology fitting and described its two simple(More)