1. Articles from Rohan J. Shah

    1-2 of 2
    1. Evaluation of microsurgical tasks with OCT-guided and/or robot-assisted ophthalmic forceps

      Evaluation of microsurgical tasks with OCT-guided and/or robot-assisted ophthalmic forceps

      Real-time intraocular optical coherence tomography (OCT) visualization of tissues with surgical feedback can enhance retinal surgery. An intraocular 23-gauge B-mode forward-imaging co-planar OCT-forceps, coupling connectors and algorithms were developed to form a unique ophthalmic surgical robotic system. Approach to the surface of a phantom or goat retina by a manual or robotic-controlled forceps, with and without real-time OCT guidance, was performed. Efficiency of lifting phantom membranes was examined. Placing the co-planar OCT imaging probe internal to the surgical tool reduced instrument shadowing and permitted constant tracking. Robotic assistance together with real-time OCT feedback improved depth perception accuracy. The first-generation integrated ...

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    2. Peripapillary Retinal Nerve Fiber Layer Thickness in Sickle-Cell Hemoglobinopathies Using Spectral-Domain Optical Coherence Tomography

      Peripapillary Retinal Nerve Fiber Layer Thickness in Sickle-Cell Hemoglobinopathies Using Spectral-Domain Optical Coherence Tomography

      Purpose To determine whether patients with a sickle-cell hemoglobinopathy without glaucoma have peripapillary retinal nerve fiber layer (RNFL) thinning by spectral-domain optical coherence tomography. Design Prospective study. Methods All patients with a sickle cell hemoglobinopathy (sickle-cell disease, sickle-cell hemoglobin C disease, and sickle-cell thalassemia) and age-similar, race-matched controls underwent a comprehensive eye examination and spectral-domain optical coherence tomography of the macula and optic nerve head using the Heidelberg Spectralis (Heidelberg Engineering, Inc, Carlsbad, California, USA). Participants with prior retinal treatments (laser or surgery), diabetes mellitus, glaucoma, or other ocular diseases were excluded. The sickle-cell disease patients were grouped into those ...

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    1-2 of 2
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  2. Topics in the News

    1. (2 articles) Boston University
    2. (2 articles) Massachusetts General Hospital
    3. (1 articles) Vanderbilt University
    4. (1 articles) Heidelberg Engineering
    5. (1 articles) Nara Medical University
    6. (1 articles) University of Maryland
    7. (1 articles) University of Ulsan
    8. (1 articles) FDA
    9. (1 articles) Duke University
    10. (1 articles) University of Queensland
    11. (1 articles) Cleveland Clinic
    12. (1 articles) Kobe University Graduate School of Medicine
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    Peripapillary Retinal Nerve Fiber Layer Thickness in Sickle-Cell Hemoglobinopathies Using Spectral-Domain Optical Coherence Tomography Evaluation of microsurgical tasks with OCT-guided and/or robot-assisted ophthalmic forceps A novel algorithm for multiplicative speckle noise reduction in ex vivo human brain OCT images Volumetric characterization of microvasculature in ex vivo human brain samples by serial sectioning optical coherence tomography Depth of focus extension in optical coherence tomography using ultrahigh chromatic dispersion of zinc selenide Retinal changes in bipolar disorder as an endophenotype candidate: Comparison of OCT-detected retinal changes in patients, siblings, and healthy controls Intraoperative optical coherence tomography guided 25G micro-amount trajectory vitrectomy for the treatment of penetrating ocular injury caused by a foreign body in the right eye: A case study Optical coherence tomography angiography reveals paradoxically decreasing choroidal thickness & increasing blood flow in remitting Vogt Koyanagi Harada syndrome A comparison of macular ganglion cell and retinal nerve fibre layer optical coherence tomographic parameters as predictors of visual outcomes of surgery for pituitary tumours Fundus Changes Evaluated by OCTA in Patients With Cerebral Small Vessel Disease and Their Correlations: A Cross-Sectional Study Optical Coherence Tomography Combined with Fluorescein Fundus Angiography under Intelligent Algorithm to Evaluate the Clinical Efficacy of Ranibizumab Combined with Panretinal Photocoagulation in the Treatment of Macular Edema of Diabetic Retinopathy Pati Risk factors and characteristics of central serous chorioretinopathy with later development of macular neovascularisation detected on OCT angiography: a retrospective multicentre observational study