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


Hotelbuchung
   Hotel Registration
Grußwort
   Welcome address
Beteiligte Gesellschaften
   Societies involved
DOG Information
   DOG Information
Eröffnung des Kongresses
   Opening Ceremony
Preise
   Awards
Ablauf der Tagung 2003
   General overview of congress
Lageplan der Räumlichkeiten
   Map of Congress Center
Wissenschaftliche Themen
   Scientific topics
Symposien
   Symposia
Wissenschaftliches Programm
   Scientific program
Posterpräsentationen
   Poster Presentation
Kurse
   Courses
Begleitende Veranstaltungen
   Accompanying program
Arbeitssitzungen
   Working sessions
Rahmenprogramm
   Social program
Allgemeine Informationen
   General Information
Autorenindex
   Index of Authors
Industrieaussteller
   Commercial exhibitors
Sponsoren
   Sponsors
Impressum



DOG Homepage


Abstract
Abstract

New Possibilities in Retinal Vessel Analysis

Kremmer S., Steuhl K.-P.
University Eye Hospital, Essen

Retinal vessel analysis is a new technique to assess their behaviour based on continuous diameter measurements. The Retinal Vessel Analyzer (RVA) is able to assess data ‚on-line’ in relation to time and local position. Therefore, RVA enables not only measurements of vessel diameters in different diseases, e.g. glaucoma, diabetes, AMD but also vessel reactions after application of different therapeutical drugs. Additionally, vessel diameters can be examined at different kinds of provocation tests. As an example, typical results of glaucomatous disease are shown: the arterial response to blood pressure elevations (Bayliss effect) is changing from initial vessel dilation to vasoconstriction. At the beginning of a short artificial IOP elevation a vasoconstriction can be observed. After provocation follows a dilation for 10 – 15 minutes. Flicker light causes immediate vessel diameter dilations returning to initial diameters some seconds after provocation. These autoregulative and recovery capacities of the vessels are smaller and slower in glaucoma patients than in healthy persons.
The RVA enables new possibilities to detect disturbancies of autoregulative mechanisms of retinal vessels which can be helpful in diagnostics and therapy control of multiple diseases.


Zurück | Back