Blickrichtungstonometrie oder -tonographie bei endokriner Ophthalmopathie

Abstract
In patients with Graves'' ophthalmopathy there is often a rise in intraocular pressure (dIOP) in changing from straight-ahead gaze to upgaze. If dIOP is measured using the applanation tonometer of the slitlamp, mistakes occur in pressure recording. In order to check these mistakes the authors compared tonometric with tonographic records of dIOP in 90 eyes of 45 patients. It was found that tonographic values were twice as high as tonometric values. Therefore, tonography furnishes more information about the activity of Graves'' disease than tonometry; the errors of measurement associated with tonometry are also avoided.

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