Klaus Donath

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In the frame of the ARIC study it could be shown that the retinal vessel system gives important information about retinal, ophthalmic, and cerebrovascular diseases by manually labeling the vessels. In this paper an approach is presented which automatically assesses the retinal vessel systems in fundus images. For this, first the optic disk is located.(More)
Glaucoma is the second most common cause of blindness worldwide. Low awareness and high costs connected to glaucoma are reasons to improve methods of screening and therapy. A well-established method for diagnosis of glaucoma is the examination of the optic nerve head using scanning-laser-tomography. This system acquires and analyzes the surface topography(More)
OBJECTIVES The analysis of the optic disk morphology with the means of the scanning laser tomography is an important step for glaucoma diagnosis. A method we developed for optic disk segmentation in images of the scanning laser tomograph is limited by noise, non-uniform illumination and presence of blood vessels. Inspired by recent medical research, we(More)
In twelve rats, the right maxillary first molar was moved mesially by means of a fixed appliance. It was not possible to find any histopathological differences with forces of 10 N, 20 N and 30 N. We also found no different cellular reactions in the tension and pressure zones between the periods of three, six, ten and 14 days. In the treated rats the first(More)