1. Volumetric directional optical coherence tomography

      Explore OSA | OSA Publishing Ophthalmology
      Volumetric directional optical coherence tomography
      Photoreceptor loss and resultant thinning of the outer nuclear layer (ONL) is an important pathological feature of retinal degenerations and may serve as a useful imaging biomarker for age-related macular degeneration. However, the demarcation between the ONL and the adjacent Henles fiber layer (HFL) is difficult to visualize with standard optical coherence tomography (OCT). A dedicated OCT system that can precisely control and continuously and synchronously update the imaging beam ...
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      Mentions: Thorlabs FLIR Superlum

    2. High-speed and widefield handheld swept-source OCT angiography with a VCSEL light source

      Explore OSA | OSA Publishing Ophthalmology , Probes
      High-speed and widefield handheld swept-source OCT angiography with a VCSEL light source
      Optical coherence tomography (OCT) and OCT angiography (OCTA) enable noninvasive structural and angiographic imaging of the eye. Portable handheld OCT/OCTA systems are required for imaging patients in the supine position. Examples include infants in the neonatal intensive care unit (NICU) and operating room (OR). The speed of image acquisition plays a pivotal role in acquiring high-quality OCT/OCTA images, particularly with the handheld system, since both the operator hand ...
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      Mentions: National Institutes of Health Oregon Health & Science University Center for Ophthalmic Optics and Lasers

    3. Sensorless adaptive-optics optical coherence tomographic angiography

      Explore OSA | OSA Publishing
      Sensorless adaptive-optics optical coherence tomographic angiography
      Optical coherence tomographic angiography (OCTA) can image the retinal blood flow but visualization of the capillary caliber is limited by the low lateral resolution. Adaptive optics (AO) can be used to compensate ocular aberrations when using high numerical aperture (NA), and thus improve image resolution. However, previously reported AO-OCTA instruments were large and complex, and have a small sub-millimeter field of view (FOV) that hinders the extraction of biomarkers with ...
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      Mentions: Oregon Health & Science University Center for Ophthalmic Optics and Lasers Simon Fraser University
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