Ophthalmic Device with Self Alignment for Operator-Less Operation

    公开(公告)号:US20240090766A1

    公开(公告)日:2024-03-21

    申请号:US18465913

    申请日:2023-09-12

    摘要: A processor signals a display to show a target. Optics is positioned in an optical path taken by the target, as shown by the display, from the display to the eye of a user. The optics is configured to change accommodation by the eye and has adjustable focal length that enables the user to see the target with changing acuity. The processor then obtains an indication that the eye of the user is focused on the target. In response, the processor signals an alignment mechanism to align a sensor in the device to the eye of the user. After signaling the alignment mechanism to align the sensor to the eye of the user, the processor obtains sensor data, produced by the sensor, which measures a property of the eye. Other aspects are also described and claimed.

    Optometric instrument with alignment means and method for aligning an optometric instrument

    公开(公告)号:US10058245B2

    公开(公告)日:2018-08-28

    申请号:US14973988

    申请日:2015-12-18

    申请人: ICARE FINLAND OY

    摘要: An optometric instrument includes an alignment device that includes light sources for sending out light beams through one or more light channels from the instrument onto the retina of an eye of a patient. The light channels are directed parallel with the visual axis of the eye at correct alignment, whereat the light beams are visible for the patient in an intended way. A method for aligning an optometric instrument includes sending out light beams from the light sources through one or more light channels onto the retina of the eye of a patient, and positioning the instrument to have the light channels parallel with the visual axis of the eye of the patient as a result of finding a position, wherein the light can be correctly viewed by the patient.

    NON CONTACT EYEBALL VIBRATION TYPE TONOMETER

    公开(公告)号:US20170280998A1

    公开(公告)日:2017-10-05

    申请号:US15091087

    申请日:2016-04-05

    申请人: Adtex Inc.

    IPC分类号: A61B3/16

    CPC分类号: A61B3/165

    摘要: The problem addressed by the present invention is to provide a tonometer that is capable of measuring the intraocular pressure of a subject eye without the subject or persons around him experiencing noise, and without blowing air against the subject eye. With the present invention, a non contact eyeball vibration type tonometer is provided that includes: a parametric speaker that directs sound waves against the front surface of a subject eye; a detection device that detects data related to vibration of the subject eye caused by these sound waves from the parametric speaker; and a processing device that calculates the intraocular pressure of the subject eye from this vibration data for the subject eye.

    OPHTHALMIC DEVICE
    9.
    发明申请
    OPHTHALMIC DEVICE 审中-公开

    公开(公告)号:US20170238799A1

    公开(公告)日:2017-08-24

    申请号:US15434630

    申请日:2017-02-16

    申请人: Tomey Corporation

    IPC分类号: A61B3/14 G06T7/20 G06T7/00

    摘要: An ophthalmic device is provided with an illumination optical system configured to irradiate light irradiated from a light source as parallel light to a subject's eye at an oblique angle, the light source is configured to emit coherent light; an image capturing optical system including a light receiving element and configured to capture a reflected image by receiving first reflected light and second reflected light by the light receiving element, the first reflected light being reflected from an anterior surface of a cornea of the subject's eye, the second reflected light being different from the first reflected light and reflected from a posterior surface of the cornea of the subject's eye; and a controller configured to calculate a thickness of the cornea by using the reflected image captured by the image capturing optical system.