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    • 2. 发明申请
    • Ocular surface interferometry (OSI) methods for imaging and measuring ocular tear film layer thickness(es)
    • 用于成像和测量眼泪膜层厚度的眼表干涉测量(OSI)方法
    • US20100259723A1
    • 2010-10-14
    • US12798326
    • 2010-04-01
    • Donald R. KorbWilliam L. WeberRandal B. ChinnockBenjamin T. GravelyStephen M. GrenonMichael Zelina
    • Donald R. KorbWilliam L. WeberRandal B. ChinnockBenjamin T. GravelyStephen M. GrenonMichael Zelina
    • A61B3/14
    • A61B3/101A61B3/0025A61B3/0041A61B3/1005A61B3/14G06T7/0012G06T2207/30041
    • Ocular surface interferometry (OSI) devices, systems, and methods are disclosed for measuring a tear film layer thickness (TFLT) of the ocular tear film, including lipid layer thickness (LLT) and/or aqueous layer thickness (ALT). The measured TFLT can be used to diagnosis dry eye syndrome (DES). In certain disclosed embodiments, a multi-wavelength light source can be controlled to illuminate the ocular tear film. Light emitted from the multi-wavelength light source undergoes optical wave interference interactions in the 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. The imaging device can also be focused on the lipid layer of the tear film 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. The resulting image can be processed and analyzed to measure a tear film layer thickness (TFLT), including lipid layer thickness (LLT) and/or aqueous layer thickness (ALT).
    • 公开了用于测量眼泪膜的泪膜层厚度(TFLT),包括脂质层厚度(LLT)和/或水层厚度(ALT)的眼表干涉测量(OSI)装置,系统和方法。 测量的TFLT可用于诊断干眼综合征(DES)。 在某些公开的实施例中,可以控制多波长光源以照射眼泪膜。 从多波长光源发射的光在泪膜中经历光波干涉相互作用。 成像装置可以集中在泪膜的脂质层上,以捕获与第一图像中的背景信号结合的来自泪膜的镜面反射光的光波干涉相互作用。 成像装置还可以聚焦在泪膜的脂质层上,以捕获包含存在于第一图像中的背景信号的第二图像。 可以从第一图像中减去第二图像以减少和/或消除第一图像中的背景信号以产生所得图像。 可以对所得图像进行处理和分析,以测量泪膜层厚度(TFLT),包括脂质层厚度(LLT)和/或水层厚度(ALT)。
    • 3. 发明申请
    • Ocular surface interferometry (OSI) devices and systems for imaging and measuring ocular tear film layer thickness (ES)
    • 用于成像和测量眼泪膜层厚度(ES)的眼表干涉仪(OSI)装置和系统
    • US20100259721A1
    • 2010-10-14
    • US12798324
    • 2010-04-01
    • Donald R. KorbWilliam L. WeberRandal B. ChinnockBenjamin T. GravelyStephen M. GrenonMichael Zelina
    • Donald R. KorbWilliam L. WeberRandal B. ChinnockBenjamin T. GravelyStephen M. GrenonMichael Zelina
    • A61B3/14
    • A61B3/101A61B3/0025A61B3/0041A61B3/1005A61B3/14G06T7/0012G06T2207/30041
    • Ocular surface interferometry (OSI) devices, systems, and methods are disclosed for measuring a tear film layer thickness (TFLT) of the ocular tear film, including lipid layer thickness (LLT) and/or aqueous layer thickness (ALT). The measured TFLT can be used to diagnosis dry eye syndrome (DES). In certain disclosed embodiments, a multi-wavelength light source can be controlled to illuminate the ocular tear film. Light emitted from the multi-wavelength light source undergoes optical wave interference interactions in the 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. The imaging device can also be focused on the lipid layer of the tear film 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. The resulting image can be processed and analyzed to measure a tear film layer thickness (TFLT), including lipid layer thickness (LLT) and/or aqueous layer thickness (ALT).
    • 公开了用于测量眼泪膜的泪膜层厚度(TFLT),包括脂质层厚度(LLT)和/或水层厚度(ALT)的眼表干涉测量(OSI)装置,系统和方法。 测量的TFLT可用于诊断干眼综合征(DES)。 在某些公开的实施例中,可以控制多波长光源以照射眼泪膜。 从多波长光源发射的光在泪膜中经历光波干涉相互作用。 成像装置可以集中在泪膜的脂质层上,以捕获与第一图像中的背景信号结合的来自泪膜的镜面反射光的光波干涉相互作用。 成像装置还可以聚焦在泪膜的脂质层上,以捕获包含存在于第一图像中的背景信号的第二图像。 可以从第一图像中减去第二图像以减少和/或消除第一图像中的背景信号以产生所得图像。 可以对所得图像进行处理和分析,以测量泪膜层厚度(TFLT),包括脂质层厚度(LLT)和/或水层厚度(ALT)。
    • 4. 发明授权
    • Tear film measurement
    • 撕裂膜测量
    • US07758190B2
    • 2010-07-20
    • US11820664
    • 2007-06-20
    • Donald R. KorbBenjamin T. Gravely
    • Donald R. KorbBenjamin T. Gravely
    • A61B3/10
    • G01B11/0675A61B3/101
    • The invention comprises an apparatus for measuring the relative thickness of the lipid layer component of the precorneal tear film on the surface of an eye after distribution of the lipid layer subsequent to blinking is disclosed. An illuminator directs light to the lipid layer of a patient's eye. The illuminator is a broad spectrum light source covering the visible region and is a lambertion light emitter such that the light source is specularly reflected from the lipid layer and undergoes constructive and destructive interference in the lipid layer. A collector collects and focuses the specularly reflected light such that the interference patterns on the tear film lipid layer are observable. The collector also produces an output signal representative of the specularly reflected light which is suitable for further analysis, such as projection on to a high resolution video monitor or analysis by or storage in a computer. In order to facilitate ease of measurement, the patient's head may be positioned on an observation platform when the illuminator directs light to the lipid layer of the patient's eye.
    • 本发明包括一种用于测量在眨眼之后脂质层分布之后眼前表面上的预角膜撕裂膜的脂质层组分的相对厚度的装置。 照明器将光引导到患者眼睛的脂质层。 照明器是覆盖可见光区域的广谱光源,是一个薄片光发射器,使得光源从脂质层镜面反射并在脂质层中发生建设性和破坏性干扰。 收集器收集并聚焦镜面反射光,使得可以观察到泪膜脂质层上的干涉图案。 收集器还产生表示镜面反射光的输出信号,其适用于进一步分析,例如投影到高分辨率视频监视器上,或由计算机分析或存储在计算机中。 为了便于测量,当照明器将光引导到患者眼睛的脂质层时,患者的头部可以位于观察平台上。