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    1. Introducing 3-D OCT to live surgery

      Introducing 3-D OCT to live surgery

      No doubt the commercialization of optical coherence tomography (OCT) has forever changed the clinical management of retinal disorders. Its introduction into the surgical realm may be a game changer in its own right, said Pravin U. Dugel, MD. Modern microscopes limit the surgeon’s view, and “axial information must be inferred from instrument shadowing and other indirect cues.” 1 As advances in OCT technology have increased the ability of these devices to image ocular structures better, the category as a whole has moved into a wide variety of applications, including the ability to assess subretinal fluid, pigment epithelial detachments, and ...

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    2. 2016 brings retinal imaging into starring role

      2016 brings retinal imaging into starring role

      This has been the year of optical coherence tomography (OCT) angiography, numerous retina specialists said. Commercially available systems are available from Carl Zeiss Meditec, Heidelberg Engineering, and Optovue provide a noninvasive way to image retinal vasculature and confirm clinicians’ diagnoses of abnormalities. “Imaging continually changes; every year it’s being used a little bit differently,” said Julia A. Haller, MD, ophthalmologist-in-chief, Wills Eye Hospital, Philadelphia. 2016 was just the cusp of OCT angiography, said Charles Wykoff, MD, PhD, Retina Consultants of Houston, and deputy-chair of ophthalmology, Houston Methodist Hospital. “We’re starting to see a lot of podium time being ...

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    3. #1 – OCT as a Diagnostic Tool

      #1 – OCT as a Diagnostic Tool

      In 1991, David Huang, MD, PhD, of the Massachusetts Institute of Technology described the first use of optical coherence tomography (OCT) for noninvasive cross-sectional imaging in biological systems. When the first commercial time-domain OCT (TD-OCT) debuted 5 years later, it was able to acquire data at a rate of only 100 axial scans per second. Six years later, this speed had quadrupled to 400 axial scans per second. As improvements in speed and quality persisted, OCT became the gold standard for diagnosis of glaucoma and many retinal diseases such as age-related macular degeneration and diabetic eye disease. OCT is based ...

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    4. Enhanced visualization earlier in disease process

      Enhanced visualization earlier in disease process

      SD-OCT: Enhanced visualization earlier in disease process July 20, 2016 Dr. Loewenstein Take-home : Spectral-domain optical coherence tomography facilitates detailed evaluation of foveal disorders even in the very earliest disease stages. Reviewed by Anat Loewenstein, MD Tel Aviv, Israel– Spectral-domain optical coherence tomography (SD-OCT) has become indispensable for visualizing the fovea and diagnosing retinal diseases.

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    5. Precision medicine-Tracking glaucoma progression

      Precision medicine-Tracking glaucoma progression

      Measures of structure and function change can help ophthalmologists individualize treatment of glaucoma patients, according to Robert Chang, MD, assistant professor of ophthalmology, Stanford University. Since glaucoma progresses faster in some patients than others, optical coherence tomography (OCT) and visual field progression analysis can be more useful than IOP in guiding treatment decisions, said Dr. Chang during the Glaucoma Symposium CME at the 2016 Glaucoma 360 meeting. “I use structure and function glaucoma progression analysis to really customize therapy over a lifetime,” he said. “That’s my method of precision medicine in treating glaucoma patients today.” Concept precision medicine has ...

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    6. Discover the value of en face OCT imaging on retinal diseases

      Discover the value of en face OCT imaging on retinal diseases

      En face o ptical coherence tomography (OCT) is a valuable imaging strategy for anatomic and angiographic viewing of the fundus. The technology is useful for diagnosing and monitoring diseases with layer-specific anatomic abnormalities or microvascular flow alterations, said Philip J. Rosenfeld, MD, PhD. “The real advantage of en face OCT is the ability to slice and dice the images throughout their entire depth, from the choroid to the vitreous,” said Dr. Rosenfeld, professor of ophthalmology, Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami. “ En face OCT imaging became clinically useful with the advent of high-speed, high-density ...

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    7. How hardware, software advances expand OCT capabilities

      How hardware, software advances expand OCT capabilities

      Progress in posterior segment optical coherence tomography (OCT) imaging is continuing with novel software that provides better correction for eye motion, as well as new technology which offers faster imaging speeds, said James Fujimoto, PhD. These developments will enable advanced processing and quantitative assessment of three-dimensional OCT data that—in the not-too-distant future—will bring functional imaging of blood flow and vascular structure into the hands of clinicians, said Dr. Fujimoto, professor of electrical engineering and computer science, Massachusetts Institute of Technology, Cambridge, MA. “We are now approaching a point with OCT where ophthalmologists have a view of the retina ...

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    8. SD-OCT provides improvement in imaging compared with TD-OCT

      SD-OCT provides improvement in imaging compared with TD-OCT
      Key Biscayne, FL—Proprietary spectral-domain optical coherence tomography (SD-OCT) technology (3D OCT 1000, Topcon Medical Systems) provides an imaging unit that is easy to use and features very versatile software, according to Yale L. Fisher, MD, who spoke here at Angiogenesis: Exudation and Degeneration 2009.
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    9. Physician still most important 'diagnostic imager'

      Physician still most important 'diagnostic imager'
      Atlanta—The clinician remains the most important "diagnostic imager," and the clinical exam is the foundation of ophthalmologists' decision-making related to the diagnosis and treatment of glaucoma, Douglas J. Rhee, MD, told those attending the Spotlight on Glaucoma session at the American Academy of Ophthalmology annual meeting. His talk was designed to serve as a counterpoint to the previous presentation highlighting the benefits of technology.
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    10. Perimetry software measures functional progression using trend, event analyses

      Perimetry software measures functional progression using trend, event analyses
      The newest version of proprietary software (Guided Progression Analysis, Carl Zeiss Meditec) to measure the functional progression of glaucoma combines event and trend analyses and enables faster, more quantitative evaluation of change in visual field than that permitted by older methods, according to one ophthalmologist. Use of the software requires a particular, newer perimeter (Humphrey Field Analyzer II-i, Carl Zeiss Meditec), and clinical correlation is advised.
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    11. OCT criteria offer favorable performance in discriminating ODE from ONHD

      Columbia, MO—Qualitative and quantitative criteria can be established to differentiate optic disc edema (ODE) from optic nerve head drusen (ONHD) on optical coherence tomography (OCT), said Lenworth N. Johnson, MD, professor of ophthalmology and neurology, Mason Eye Institute, University of Missouri-Columbia.
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    12. Poor correlation found between intraoperative pachymetry, postoperative OCT

      San Francisco—Intraoperative subtraction pachymetry may be less accurate and more prone to measurement error than postoperative optical coherence tomography (OCT) measurements, according to Yohko Murakami, MA, Stanford University School of Medicine, Stanford, CA. Murakami presented information on a prospective, randomized trial in which 100 eyes of 50 consecutive patients were treated for myopia using custom wavefront-guided LASIK. In each patient, one eye was treated with a femtosecond laser and the other eye was treated with a mechanical microkeratome. Patients were followed for a year.
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    13. Spectral-domain optical coherence tomography has practical applications in the diagnosis, management of retinal disease

      Spectral-domain optical coherence tomography has practical applications in the diagnosis, management of retinal disease
      Major advances in technology have given birth to state-of-the-art imaging devices that decisively raise the bar in diagnostics in ophthalmology today, according to Jeffrey S. Heier, MD, speaking at the annual meeting of the American Academy of Ophthalmology. According to Dr. Heier, a vitreoretinal surgeon at Ophthalmic Consultants of Boston, specific spectral-domain optical coherence tomography (SD-OCT) technology (Spectralis, Heidelberg Engineering) is leading the way in this retinal revolution, redefining not only how ophthalmologists diagnose diseases but also how they manage them.
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    14. Topcon granted FDA clearance for OCT measurement software

      Paramus, NJ—Topcon Medical Systems has received FDA clearance for its enhanced 3D optical coherence tomography (OCT) measurement software (OCT-1000 TrueMap) as an addition to its previously cleared OCT system (3D OCT-1000), according to a prepared statement. The software, according to the company, is designed to allow physicians to visualize four layers of the retina: the inner limiting membrane, the IS/OS junction, the retinal pigment epithelium, and Bruch’s membrane. The software also can import and read data from a time-domain OCT device (Stratus, Carl Zeiss Meditec).
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    15. Glaucoma progression: Monitor disease with multi-step process

      Glaucoma progression: Monitor disease with multi-step process
      As understanding of the multifaceted nature of glaucoma continues to grow, the steps practitioners need to take to monitor progression of the disease evolve. Key steps to take to monitor progression include confirming with repeat testing any visual function loss, remembering that structural measurements have variability, and using structural and functional testing together.
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    16. Electromagnetic deformable mirror assists in retinal diagnostics

      Electromagnetic deformable mirror assists in retinal diagnostics
      Créteil, France—An electromagnetic deformable mirror (Mirao 52-e, Imagine Eyes) used in conjunction with an adaptive optics flood illumination fundus camera (AOFIFC, INOVEO) can assist in more accurate diagnoses of ophthalmic diseases and conditions, monitor their progression, and, ultimately, help in prescribing more targeted treatments that may positively affect prognoses, according to Gisele Soubrane, MD, professor and chief of the Department of Ophthalmology at the Centre Hospitalier Intercommunal de Créteil, Créteil, France. The electromagnetic mirror effectively reduces the impact of ocular aberrations on imaging, offering much clearer and more detailed images of the retina and its anatomy. These aberrations can ...
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    17. Distinct patterns of diabetic maculopathy seen on OCT

      Optical coherence tomography (OCT) is valuable in managing diabetic macular edema (DME), more so than fluorescein angiography, in which the degree of leakage is not correlated with visual acuity and outcomes, according to Peter Kaiser, MD. In addition, angiography does not show vitreoretinal abnormalities that may require a different treatment.
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    18. Take a new look at existing devices, surgeon suggests

      London—Advances in optical coherence tomography (OCT) devices, regardless of the manufacturer, are dramatically changing the ease and precision of ocular disease diagnosis and management in ophthalmology. The new technology that these devices wield can offer the clinician much more than what they originally were designed to do in the diagnostics of the anterior eye, lens, and retinal diseases, according to John Bolger, FRCS, surgeon, and founder and director of the Cataract Clinic, London. A Fourier-domain OCT (RTVue-100, Optovue) is one device that uses this new technology, and it is designed to assist in the diagnosis and management of glaucoma ...
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    19. Preoperative optical coherence tomography can predict surgical, acuity outcomes

      Osaka, Japan—Patients with high myopia, macular holes, and no retinal detachment have better visual outcomes compared with patients with high myopia, a macular hole, and a localized retinal detachment with surrounding retinoschisis and compared with patients with high myopia with a macular hole and a retinal detachment within the area of posterior staphyloma and no retinoschisis. This assessement is according to Yasushi Ikuno, MD, associate professor, Department of Ophthalmology, Osaka University Medical School, Osaka, Japan. Macular holes, according to Dr. Ikuno, are a major complication in high myopia; vitrectomy with peeling of the internal limiting membrane peeling and gas ...
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    20. Modified OCT device provides higher-resolution images than current technology

      A modified version of a commercially available high-definition optical coherence tomography (OCT) device, adapted for imaging the anterior chamber angle, was able to provide higher-resolution images than current OCT devices and help investigators identify a new anatomic landmark. If this instrument is developed commercially, it could become a new gold standard for diagnosis of angle-closure glaucoma.
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    21. Ultrasound provides clearer picture of posterior segment

      "Currently available ultrasound techniques can evaluate the cornea to the level of microns. By imaging the sulcus, ciliary body, and lens, the results are superior to OCT imaging," he said. "For retina specialists, this technology is useful for looking at the anterior segment, that is, the ciliary body and the area around the lens. This imaging approach is also useful to diagnose and follow patients with tumors to determine if treatment with an iodine or other radioactive plaque is necessary or, if used, was effective. However, the posterior segment cannot be visualized using high frequencies because of ultrasound absorption, thus ...
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    22. Spectral-domain optical coherence tomography an improvement over previous optical coherence tomography systems

      Spectral-domain optical coherence tomography (SD-OCT) offers several major advantages over conventional OCT: faster image acquisition time, improved resolution, and improved image processing. In addition, the technology decreases patient motion artifact, which is especially useful when obtaining images in children.
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    1-24 of 36 1 2 »
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