公开(公告)号：US11576574B2

公开(公告)日：2023-02-14

申请号：US16301366

申请日：2017-05-11

申请人： Erasmus University Medical Center Rotterdam

发明人： Johannes van der Steen ,  Johannes Jacob Mient Pel ,  Jochem Jesse Visser

IPC分类号： A61B3/113 ,  G02C7/04 ,  A61B90/00 ,  A61B3/14 ,  A61B5/11 ,  G02B1/04

摘要： Method and contact lens (3) for measuring a subject's three dimensional eye movement including torsional movement. A video camera (1) is provided for recording an image of the subject's eye (2). The contact lens (3) is provided for placement over the subject's eye (2). The contact lens (3) comprises one or more markers (3a,3b) that are detectable by the video camera (1) and are positioned at a lateral offset (D) with respect to a central part (3p) of the contact lens (3). The one or more markers (3a,3b) are configured for detecting torsional rotation (R) of the subject's eye (2) around a line of sight axis (C) of the subject's eye (2) by using the video camera (1) to track a position of the one or more markers (3a,3b).

公开(公告)号：US20190274543A1

公开(公告)日：2019-09-12

申请号：US16301366

申请日：2017-05-11

申请人： Erasmus University Medical Center Rotterdam

发明人： Johannes van der Steen ,  Johannes Jacob Mient Pel ,  Jochem Jesse Visser

IPC分类号： A61B3/113 ,  A61B3/14 ,  A61B5/11 ,  A61B90/00

摘要： Method and contact lens (3) for measuring a subject's three dimensional eye movement including torsional movement. A video camera (1) is provided for recording an image of the subject's eye (2). The contact lens (3) is provided for placement over the subject's eye (2). The contact lens (3) comprises one or more markers (3a,3b) that are detectable by the video camera (1) and are positioned at a lateral offset (D) with respect to a central part (3p) of the contact lens (3). The one or more markers (3a,3b) are configured for detecting torsional rotation (R) of the subject's eye (2) around a line of sight axis (C) of the subject's eye (2) by using the video camera (1) to track a position of the one or more markers (3a,3b).