Melting meibomian gland obstructions

    公开(公告)号:US10940074B2

    公开(公告)日:2021-03-09

    申请号:US16172159

    申请日:2018-10-26

    Abstract: An apparatus providing heat for treatment of an eyelid includes a heater unit configured to apply heat directly to an outer surface of the eyelid when an electrical signal is applied to the heater unit. The heater unit is affixed directly to the outer surface of the eyelid using an adhesive. A temperature regulator applies the electrical signal to the heater unit in order to achieve heating of the outer surface of the eyelid to a specified temperature range. A method is also disclosed that comprises affixing a heater unit directly into contact with the outer surface of the eyelid using an the adhesive. A control signal is applied to the heater unit to generate heat to the outer surface of the eyelid and is maintained for a period of time until the outer surface of the eyelid is heated to a specified temperature range.

    Methods and apparatuses for determining contact lens intolerance in contact lens wearer patients based on dry eye tear film characteristic analysis and dry eye symptoms

    公开(公告)号:US10716465B2

    公开(公告)日:2020-07-21

    申请号:US15892549

    申请日:2018-02-09

    Abstract: Methods and apparatuses for determining contact lens intolerance in contact lens wearer patients based on tear film characteristics analysis and dry eye symptoms are disclosed. In embodiments herein, imaging of the ocular tear film is performed during contact lens wear. An analysis of the image of the ocular tear film is performed to determine one or more tear film characteristics of the ocular tear film. The tear film characteristics can be used to determine the effect or possible effect of contact lens wear on the ocular tear film, and thus be used to determine contact lens intolerance of the patient. The tear film characteristics used to analyze contact lens intolerance based on images of the ocular tear film involving contact lens wear may include dry eye symptoms, including but not limited to tear film (e.g., lipid and/or aqueous) thickness, tear film viscosity, and tear film movement rate in the eye.

    OCULAR SURFACE INTERFEROMETRY (OSI) FOR IMAGING, PROCESSING, AND/OR DISPLAYING AN OCULAR TEAR FILM

    公开(公告)号:US20200170502A1

    公开(公告)日:2020-06-04

    申请号:US16782384

    申请日:2020-02-05

    Abstract: Ocular surface interferometry devices, systems, and methods are disclosed for imaging an ocular tear film. An imaging device can be focused on the lipid layer of the tear film to capture optical wave interference interactions of specularly reflected light from the tear film combined with a background signal(s) in a first image, wherein the specularly reflected light may be produced from various portions of the ocular tear film by obliquely illuminating various portions of the ocular tear film with a multi-wavelength light source, such as in a tiling pattern(s). The imaging device can also be focused on the lipid layer to capture a second image containing the background signal(s) present in the first image. The second image can be subtracted from the first image to reduce and/or eliminate the background signal(s) in the first image to produce a resulting image, which can used to measure a tear film layer thickness.

    Methods and apparatuses for treatment of meibomian glands

    公开(公告)号:US10299808B2

    公开(公告)日:2019-05-28

    申请号:US14510863

    申请日:2014-10-09

    Abstract: Methods and apparatuses of treating meibomian glands are disclosed. The method comprises applying regulated heat to an eyelid to reach a temperature adequate to melt at least one obstruction within at least one meibomian gland. The method also comprises maintaining the regulated heat for a time period adequate to place the at least obstruction in the melted state. The method further comprises positioning a pressure application device into contact with the patient's eyelid and applying a pressure with the pressure application device over a substantial portion of the eyelid to express the at least one obstruction from the meibomian gland. An apparatus suitable to treat meibomian glands comprises a heater, a controller, and a pressure applicator configured to be placed into contact with the eyelid and apply a pressure over a substantial portion of the eyelid to express the at least one obstruction from the meibomian gland.

    OCULAR SURFACE INTERFEROMETRY (OSI) DEVICES AND SYSTEMS FOR IMAGING, PROCESSING, AND/OR DISPLAYING AN OCULAR TEAR FILM

    公开(公告)号:US20180296086A1

    公开(公告)日:2018-10-18

    申请号:US16008619

    申请日:2018-06-14

    Abstract: Ocular surface interferometry devices, systems, and methods are disclosed for imaging an ocular tear film. An imaging device can be focused on the lipid layer of the tear film to capture optical wave interference interactions of specularly reflected light from the tear film combined with a background signal(s) in a first image, wherein the specularly reflected light may be produced from various portions of the ocular tear film by obliquely illuminating various portions of the ocular tear film with a multi-wavelength light source, such as in a tiling pattern(s). The imaging device can also be focused on the lipid layer to capture a second image containing the background signal(s) present in the first image. The second image can be subtracted from the first image to reduce and/or eliminate the background signal(s) in the first image to produce a resulting image, which can used to measure a tear film layer thickness.

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