초록 ▼

An eyetracker for moving the path of a laser beam in response to patient eye movement comprises a visual light source on which the patient can fixate to bring the visual axis of the eye into a reference alignment with the optical axis of the light source. A laser source, having its beam coaxially al

An eyetracker for moving the path of a laser beam in response to patient eye movement comprises a visual light source on which the patient can fixate to bring the visual axis of the eye into a reference alignment with the optical axis of the light source. A laser source, having its beam coaxially aligned with the optical axis of the light source, cuts a mark onto the cornea of the eye when the eye is in the reference alignment. An infrared optical system monitors movement of the mark to generate an error signal which is proportional to any movement of the mark out of the reference alignment. Means are also provided by the eyetracker to move the path of the laser beam back into the reference alignment to reduce the error signal to a null.

대표청구항 ▼

An eyetracker which comprises: means for generating a steerable laser beam aimed toward the eye of a patient for operating thereon; means for locating the visual axis of said eye; means for sensing movement of said visual axis; means connecting said sensing means with said laser beam to control the

An eyetracker which comprises: means for generating a steerable laser beam aimed toward the eye of a patient for operating thereon; means for locating the visual axis of said eye; means for sensing movement of said visual axis; means connecting said sensing means with said laser beam to control the steering of said laser beam in a pedetermined relationship to said visual axis.