Leica Science Lab - Tag : OCT https://www.leica-microsystems.com//science-lab/tag/tags/oct/show/Tag/ Article tagged with OCT en-US https://www.leica-microsystems.com/19538 Optical Coherence Tomography Microscope-Integrated OCT Feasibility and Utility With the EnFocus System in the DISCOVER Study This article published in the journal OSLI Retina discusses the findings of the latest phase of the DISCOVER study relating specifically to the EnFocus instrasurgical OCT system from Leica. One of the findings of this phase of the study was that “in membrane peeling procedures, intraoperative OCT findings were discordant from the surgeon's initial impression in seven of 20 cases (35%).” (Runkle, Sunil et al, 2017). https://www.leica-microsystems.com//science-lab/microscope-integrated-oct-feasibility-and-utility-with-the-enfocus-system-in-the-discover-study/ Thu, 22 Jun 2017 11:33:00 +0000 https://www.leica-microsystems.com/19158 Optical Coherence Tomography Surgical Microscopy How Intrasurgical OCT can Impact the Surgical Approach to Membrane Peeling When treating patients with vitreomacular traction (VMT), peeling of the inner limiting membrane (ILM) or an epiretinal membrane (ERM) is often indicated. Successful outcomes depend on precise surgical maneuvers as well as the surgeon’s experience in order to assess whether the entire membrane has been removed, as this is crucial for successful release of traction. Showing different steps of removing an ERM to resolve VMT, the following videos captured with EnFocus intrasurgical OCT demonstrate how visualization of the membrane can impact the surgical process of membrane peeling. https://www.leica-microsystems.com//science-lab/how-intrasurgical-oct-can-impact-the-surgical-approach-to-membrane-peeling/ Thu, 04 May 2017 07:12:00 +0000 Marie Stockton https://www.leica-microsystems.com/19022 Optical Coherence Tomography Surgical Microscopy What is OCT and how can it help ophthalmologists acquire high resolution information on ocular tissue? Optical Coherence Tomography (OCT) is a non-invasive, non-contact imaging modality used to visualize and monitor changes to the morphology of biological tissue. OCT employs low-coherence interferometry to create cross-sectional images that reveal sub-surface details of the tissues of interest. In the most common ophthalmic applications OCT systems use near-infrared light to generate high-resolution, volumetric images of tissue microstructures including the cornea, iris, crystalline lens, vitreous and retina. These images can enhance insight into pathological conditions such as glaucoma, age-related macular degeneration or diabetic retinopathy. https://www.leica-microsystems.com//science-lab/what-is-oct-and-how-can-it-help-ophthalmologists-acquire-high-resolution-information-on-ocular-tissue/ Thu, 01 Dec 2016 14:44:00 +0000 George Wildeman, PhD Hafeez Dhalla https://www.leica-microsystems.com/18978 Optical Coherence Tomography Surgical Microscopy How Intrasurgical OCT can Provide Additional Information During Ophthalmic DMEK Procedures Replacing diseased Descemet’s membrane with a donor graft is an especially delicate procedure. Accurate positioning and full adherence to the stroma are crucial for optimal patient outcomes. These videos illustrate how intrasurgical OCT can provide additional information during each stage of a DMEK procedure. https://www.leica-microsystems.com//science-lab/how-intrasurgical-oct-can-provide-additional-information-during-ophthalmic-dmek-procedures/ Thu, 01 Dec 2016 14:05:00 +0000 Marie Stockton https://www.leica-microsystems.com/18077 Optical Coherence Tomography Surgical Microscopy Is iOCT the Next Paradigm Shift for Vitreoretinal Surgery? Intraoperative ocular coherence tomography (iOCT) is a useful asset when performing macular surgery and other vitreoretinal procedures. Considering the advantages it provides, iOCT may be the next paradigm shift in vitreoretinal surgery according to Justis P. Ehlers, MD. https://www.leica-microsystems.com//science-lab/is-ioct-the-next-paradigm-shift-for-vitreoretinal-surgery/ Thu, 02 Jun 2016 14:19:00 +0000 https://www.leica-microsystems.com/17418 Surface Metrology Optical Coherence Tomography A Healthy Dose of Interferometry Although interferometry may once have been dismissed by the medical community because of its inability to see inside the human body, its application within the wider biomedical arena is continuing to grow and evolve; so much so that the technique is now used in the production of prosthetic limbs, research in dentistry and even for cultivating stem cells. https://www.leica-microsystems.com//science-lab/a-healthy-dose-of-interferometry/ Thu, 14 Jan 2016 15:06:00 +0000 https://www.leica-microsystems.com/16546 Optical Coherence Tomography The Value of Intraoperative OCT Imaging in Vitreoretinal Surgery The role of iOCT in vitreoretinal surgery continues to be defined by active research and enhancements to integrative technologies. Further research is needed to better define the specific applications of iOCT that impact patient outcomes and surgical decision-making. Future advancements in integrative systems, OCT-friendly instrumentation, and software algorithms will further expand the horizon of iOCT in the vitreoretinal surgical theater. As OCT transformed the clinical management of the vitreoretinal conditions, iOCT has the potential to be a paradigm-shifting technology in the operating room. https://www.leica-microsystems.com//science-lab/the-value-of-intraoperative-oct-imaging-in-vitreoretinal-surgery/ Mon, 09 Nov 2015 13:15:00 +0000 https://www.leica-microsystems.com/16544 Optical Coherence Tomography Handheld Optical Coherence Tomography During Sedation in Young Children With Optic Pathway Gliomas Monitoring young children with optic pathway gliomas (OPGs) for visual deterioration can be difficult owing to age-related noncompliance. Optical coherence tomography (OCT) measures of retinal nerve fiber layer (RNFL) thickness have been proposed as a surrogate marker of vision but this technique is also limited by patient cooperation. To determine whether measures of circumpapillary RNFL thickness, acquired with handheld OCT (HH-OCT) during sedation, can differentiate between young children with and without vision loss from OPGs. https://www.leica-microsystems.com//science-lab/handheld-optical-coherence-tomography-during-sedation-in-young-children-with-optic-pathway-gliomas/ Mon, 09 Nov 2015 13:13:00 +0000 https://www.leica-microsystems.com/16542 Optical Coherence Tomography High Resolution Optical Coherence Tomography Guided Donor Tissue Preparation for Descemet's Membrane Endothelial Keratoplasty Using Reverse Big Bubble Technique This study assessed the feasibility of High Resolution Spectral Domain Optical Coherence Tomography (HR-SDOCT) to guide donor tissue preparation in Descemet's Membrane Endothelial Keratoplasty (DMEK) using the reverse big bubble technique. https://www.leica-microsystems.com//science-lab/high-resolution-optical-coherence-tomography-guided-donor-tissue-preparation-for-descemets-membrane-endothelial-keratoplasty-using-reverse-big-bubble-technique/ Mon, 09 Nov 2015 13:12:00 +0000 https://www.leica-microsystems.com/16540 Optical Coherence Tomography OCT Publication List OCT is a non-invasive, contact-free technique that helps to detect and monitor morphological changes of ocular tissue, in particular retinal layer thickness, which can give insight into pathological conditions such as glaucoma, age-related macular degeneration (AMD) or diabetic retinopathy. This references list presents selected publications performed with an Envisu OCT imaging system. https://www.leica-microsystems.com//science-lab/oct-publication-list/ Mon, 09 Nov 2015 13:10:00 +0000 Eric Buckland https://www.leica-microsystems.com/16532 Optical Coherence Tomography Surgical Microscopy Intraoperative OCT Today and Tomorrow: The PIONEER Study Two-year Results and Beyond The high-resolution, cross sectional information provided by iOCT creates a unique feedback system for vitreoretinal surgery. The PIONEER Study conducted by the Cole Eye Institute is a three-year exploratory study to investigate clinical feasibility, the impact on surgical decision-making, and the potential safety of a microscope-mounted portable iOCT. PIONEER represents the largest study to date examining the feasibility, utility, and safety of iOCT. https://www.leica-microsystems.com//science-lab/intraoperative-oct-today-and-tomorrow-the-pioneer-study-two-year-results-and-beyond/ Mon, 09 Nov 2015 13:09:00 +0000 https://www.leica-microsystems.com/16536 Optical Coherence Tomography Surgical Microscopy Video Talk by Sonia H. Yoo: Interoperative OCT Imaging of Selective Lamellar Keratoplasty The work prepared and presented within this video demonstrates preliminary research, and the promising future of perioperative OCT to aid the diagnosis of physiological and pathological conditions during ophthalmic surgery in order to help guide surgical decision making in anterior segment cases. Showing SDOCT Images acquired with an Envisu SD-OCT system, Prof. Yoo demonstrates the use of interoperative OCT imaging several important surgical procedures such as DALK, DSAEK and DMEK. https://www.leica-microsystems.com//science-lab/video-talk-by-sonia-h-yoo-interoperative-oct-imaging-of-selective-lamellar-keratoplasty/ Mon, 09 Nov 2015 13:07:00 +0000 Prof. Sonia H. Yoo