1. Articles from Rohit Saxena

    1-4 of 4
    1. Peripapillary Retinal and Choroidal Perfusion in Nonarteritic Ischemic Optic Neuropathy Using Optical Coherence Tomography Angiography

      Peripapillary Retinal and Choroidal Perfusion in Nonarteritic Ischemic Optic Neuropathy Using Optical Coherence Tomography Angiography

      SIGNIFICANCE Nonarteritic ischemic optic neuropathy (NAION) has been linked with vascular insufficiency, although the pathophysiology remains elusive. Optical coherence tomography angiography (OCTA) is a promising technology that noninvasively evaluates optic disc perfusion and that may help to characterize peripapillary vascular changes in NAION. PURPOSE This study aimed to evaluate peripapillary vascularity in NAION eyes and to compare it with fellow unaffected eyes and healthy control eyes using OCTA. METHODS In this cross-sectional study, OCTA of the optic nerve head was obtained in 10 nonacute unilateral NAION and 12 healthy age-matched controls using ZEISS Angioplex. Quantitative analysis of peripapillary retinal and ...

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    2. Assessment of macular vascular plexus density using optical coherence tomography angiography in cases of strabismic amblyopia

      Assessment of macular vascular plexus density using optical coherence tomography angiography in cases of strabismic amblyopia

      Purpose: To evaluate the superficial retinal vascular plexus density using optical coherence tomography angiography (OCTA) in cases of strabismic amblyopia. Methods: Ten eyes of 10 patients with purely strabismic amblyopia underwent detailed ocular evaluation followed by the assessment of the superficial retinal plexus vascular density using OCTA (Topcon DRI OCT Triton, Swept Source OCT, Topcon, Japan). Ten contralateral normal eyes of the same patients were considered as control. All these 20 eyes underwent a 4.5 × 4.5 mm cube scan OCTA centered at the fovea. Using the Topcon propriety software all 20 eyes were assessed for the capillary plexus ...

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    3. Intraoperative optical coherence tomography-guided scleral suture passage while performing surgery on extraocular muscles

      Intraoperative optical coherence tomography-guided scleral suture passage while performing surgery on extraocular muscles

      Sir, Microscope-integrated intraoperative optical coherence tomography (iOCT, 2 mm depth penetration) helps in achieving the optimal results by providing the real-time images of tissue manipulation during the surgery. The iOCT is of great value while performing lamellar corneal surgeries, cataract surgeries, and intraocular lens implantation surgery. [1] , [2] It has also been noted to provide an advantage during placement of the glaucoma drainage devices in cadaveric eyes and needling of the blebs. [3] , [4] Pasricha et al . described the four-dimensional visualizations of the muscle and the scleral wound while passing the scleral sutures. [5] A 45-year-old male patient with alternate ...

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    4. Retinal nerve fiber layer and ganglion cell layer changes on optical coherence tomography in early multiple sclerosis and optic neuritis cases

      Retinal nerve fiber layer and ganglion cell layer changes on optical coherence tomography in early multiple sclerosis and optic neuritis cases

      Purpose: To study the retinal nerve fiber layer (RNFL) and ganglion cell layer (GCL) changes on optical coherence tomography in early multiple sclerosis (MS) patients. Methods: A prospective cohort study was conducted at a tertiary care center. Patients of early MS (expanded disability status scale <3) with or without optic neuritis (ON) and idiopathic ON were included. Twenty age-matched individuals were taken as controls. Changes in RNFL and GCL thickness were evaluated along with the correlation with visual function parameters such as visual acuity, contrast sensitivity, and visual evoked response at first visit and again at six months. Results: Forty-four ...

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    1-4 of 4
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  2. Topics in the News

    1. (2 articles) Kyungpook National University
    2. (2 articles) University of Washington
    3. (2 articles) Jeehyun Kim
    4. (2 articles) Ruchire Eranga Wijesinghe
    5. (2 articles) Mansik Jeon
    6. (1 articles) Topcon Medical Systems
    7. (1 articles) University of Ulsan
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    Retinal nerve fiber layer and ganglion cell layer changes on optical coherence tomography in early multiple sclerosis and optic neuritis cases Intraoperative optical coherence tomography-guided scleral suture passage while performing surgery on extraocular muscles Assessment of macular vascular plexus density using optical coherence tomography angiography in cases of strabismic amblyopia Peripapillary Retinal and Choroidal Perfusion in Nonarteritic Ischemic Optic Neuropathy Using Optical Coherence Tomography Angiography A Generic Framework for Fourier-Domain Optical Coherence Tomography Imaging: Software Architecture and Hardware Implementations Vision-Inspection-Synchronized Dual Optical Coherence Tomography for High-Resolution Real-Time Multidimensional Defect Tracking in Optical Thin Film Industry Relative retinal flow velocity detection using optical coherence tomography angiography imaging Comparison of Optical Flow Ratio and Fractional Flow Ratio in Stent-Treated Arteries Immediately After Percutaneous Coronary Intervention Spaceflight Associated Neuro-Ocular Syndrome (SANS): A Systematic Review and Future Directions Retinal Thickness and Microvascular Pattern in Early Parkinson's Disease Artificial Intelligence Algorithms to Diagnose Glaucoma and Detect Glaucoma Progression: Translation to Clinical Practice Multi-directional Morphological Assessment of Single Bacterial Colonies Through Non-invasive Optical Imaging