Eye registration system for refractive surgery and...

A - Human Necessities – 61 – F

Patent

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A61F 9/01 (2006.01)

Patent

CA 2588843

An orientation method for corrective eye surgery that registers pairs of eye images taken at different times and with the patient in different positions includes retrieving reference digital image data on an eye of the patient, including image data on an extracorneal eye feature. Real-time image data are collected that include image data on the extracorneal eye feature. A combined image is displayed of a superposition of the data sets, and a determination is made as to whether the combined image indicates an adequate registration between them based upon the extracorneal eye feature data in the two data sets. If the registration is not adequate, one of the data sets is manipulated until an adequate registration is achieved. A system is directed to apparatus and software for orienting a corrective program for eye surgery.

L~invention concerne un procédé d~orientation pour la chirurgie oculaire correctrice qui enregistre des paires d~images oculaires prises à différents moments et avec un patient dans des positions différentes, comprenant l~extraction de données d~images numériques de référence sur l~AEil d~un patient et l~inclusion des données d~images sur un élément oculaire extérieur à la cornée. Des données d~images en temps réel comportant des données d~images sur l~élément oculaire extérieur à la cornée sont collectées. Une image combinée constituée d~une superposition des ensembles de données est affichée et on détermine si l~image combinée indique un enregistrement adéquat entre elles en fonction des données d~élément oculaire extérieur à la cornée dans les deux ensembles de données. Si l~enregistrement n~est pas adéquat, l~un des ensembles de données est manipulé jusqu~à obtention d~un enregistrement adéquat. L~invention concerne également un système constitué d~un appareil et d~un logiciel pour orienter un programme correctif destiné à la chirurgie oculaire.

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