Testing vision

Details Testing vision Testing vision

A - Human Necessities

61

B

A61B 3/024 (2006.01)

Patent

CA 2687409

A system for testing visual fields comprising a display for presenting a visual stimulus and an eye tracker for tracking movement of at least one of a patient's eyes to determine its position in three dimensions without requiring the patient to wear any tracking equipment. A computer controls the position of the stimulus on the display and causes it to move by an amount that is a function of the tracked three-dimensional position of the patient's eye and a visual field position that is to be tested. Changes to the position of the stimulus and any corresponding tracked eye movement are used to assess the patient's visual field.

L'invention porte sur un système permettant d'évaluer le champ visuel comprenant un afficheur présentant un stimulus visuel et un dispositif suivant le mouvement d'au moins un des yeux pour déterminer sa position en 3D sans que patient ait à porter un quelconque équipement de suivie. Un ordinateur contrôle la position du stimulus sur l'afficheur et le fait se déplacer d'une quantité fonction de la position en 3D de l'oeil du patient, et de la position du champ visuel à vérifier. On utilise les changements de position du stimulus et les mouvements correspondants de l'oeil suivi pour évaluer le champ visuel du patient.

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