Programm                 "Degeneration und Regeneration– Grundlagen, Diagnostik und Therapie"

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Ophthalmodynamometric Assessment of the Central Retinal Vein Pressure in Patients with Increased Cerebrospinal Fluid Pressure or Increased Orbital Pressure

Harder B.
Universitäts-Augenklinik Mannheim

Purpose: Using a new Goldmann lens associated ophthalmodynamometric device, it was the purpose of the present study was to determine the central retinal vein collapse pressure in patients with increased cerebrospinal fluid pressure or increased orbital pressure.
Method: The clinical interventional study included two female patients. A 13-years old patient complained of head-ache and vomiting and presented with the diagnosis of increased intracranial pressure. A 45-years old patient presented with increasing exophthalmos with the diagnosis of endocrine orbitopathy. For both patients, a Goldmann contact lens fitted with a pressure sensor was put onto the cornea. Pressure was asserted onto the globe by pressing the contact lens, and the pressure value was noted at the time when the central retinal vein started pulsating. The measurements of both patients were compared with the measurements obtained in ten normal persons.
Results: For the patient with the diagnosis of cranial hypertension, the central retinal vein collapse pressure was higher than 90 mm Hg. A direct measurement of the cerebrospinal fluid pressure showed a value of higher than 100 relative units. For the patient presenting with the diagnosis of endocrine orbitopathy, central retinal vein collapse pressure was 40 mm Hg, what was markedly higher than the values obtained in the 10 normal subjects and which r

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