1. Articles from Shorya Vardhan Azad

    1-7 of 7
    1. Intraoperative optical coherence tomography (I-OCT)-guided identification of resolved sub-internal limiting membrane hemorrhage in leukemic retinopathy

      Intraoperative optical coherence tomography (I-OCT)-guided identification of resolved sub-internal limiting membrane hemorrhage in leukemic retinopathy

      A 17-year-old male with acute myeloid leukemia (AML), presented with diminution of vision OS for 6 months. The best-corrected visual acuity was 6/9 OD and 4/60 OS. Anterior segment OU was normal. Fundus revealed pale disc OD with multiple areas of well-circumscribed pigmentary changes [Figure 1] a and vitreous hemorrhage OS. The patient underwent OS 25-G vitrectomy after informed consent. After clearing hemorrhage and induction of posterior vitreous detachment (PVD), multiple pigmented areas similar to OD including one at macula were noted [Figure 1] b. Intraoperative optical coherence tomography (I-OCT) revealed them to be areas of regressed sub-internal ...

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    2. OCTA in neuro-ophthalmology: Current clinical role and future perspectives

      OCTA in neuro-ophthalmology: Current clinical role and future perspectives

      Optical coherence tomography angiography (OCTA) is a non-invasive, depth-resolved imaging tool for the appraisement of retinal vascular changes. Since its introduction, the understanding of diabetic retinopathy, age-related macular degeneration, central serous retinopathy and other diseases has been enriched on many fronts. Its dye-less imaging property maps retinal as well as deeper choroidal vasculature in quick succession with good reproducibility. Hence, it can play an important role in the diagnosis and management of optic nerve-related diseases as well. A detailed literature review for its role in non-arteritic anterior ischemic optic neuropathy, papilledema, optic disc drusen, papillitis, hereditary optic neuropathies, central nervous ...

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    3. 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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    4. In vivo optical biopsy of choroidal osteoma: a swept source optical coherence tomography–based tumor characterization

      In vivo optical biopsy of choroidal osteoma: a swept source optical coherence tomography–based tumor characterization

      Objective: To study tumor characteristics of choroidal osteoma by swept source optical coherence tomography. Methods: A retrospective case series done at tertiary referral center in northern India. All patients diagnosed with choroidal osteoma examined on swept source optical coherence tomography were included. Swept source optical coherence tomography images were analyzed for integrity of retinal layers—intraretinal layers, outer retinal layers (photoreceptor), retinal pigment epithelium, and contour abnormalities. Choroidal changes assessed were tumor attributes such as shape, depth of choroidal involvement, tumor mass reflectivity pattern, tumor vascularity, and evolutionary structural abnormalities such as deossification, focal depressions, or choroidal neovascular membrane. Results ...

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    5. Characterization of Idiopathic Choroidal Neovascularization Using Fluorescein Angiography, Indocyanine Green Angiography, and Optical Coherence Tomography Angiography

      Characterization of Idiopathic Choroidal Neovascularization Using Fluorescein Angiography, Indocyanine Green Angiography, and Optical Coherence Tomography Angiography

      BACKGROUND AND OBJECTIVE: To assess the usefulness of optical coherence tomography angiography (OCTA) in cases of idiopathic choroidal neovascularization (iCNV). PATIENTS AND METHODS: Seven eyes with suspected iCNV were evaluated using OCT, OCTA, fluorescein angiography (FA), and indocyanine green angiography (ICGA) and were followed up between 3 weeks and 4 weeks following an intravitreal anti-vascular endothelial growth factor (VEGF) injection. The utility of OCTA in the diagnosis and characterization of morphology of iCNV at baseline and follow-up was assessed. RESULTS: Morphology of vasculature comprising iCNV could be detected in all cases (100%) on OCTA and in 57% cases on ICGA ...

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    6. Swept source optical coherence tomography-angiography of an infarct of a small intra-neural branch of central retinal artery simulating cilio-retinal artery

      Swept source optical coherence tomography-angiography of an infarct of a small intra-neural branch of central retinal artery simulating cilio-retinal artery

      A 56-year-old man with episodic transient visual loss in right eye (OD), of 2 days duration. He was not symptomatic at presentation and was using anti-coagulants for cardiovascular disease. Visual acuity was 6/6 both eyes (OU). Intra-ocular pressure and anterior segment were normal OU. OD had a finger like area of macular whitening sparing the fovea. This area corresponded to the vascular bed of a clinically appearing cilio-retinal artery (cilio-RA) [Figure 1] a. However, on fluorescein angiography, the artery filled along with branches of central RA (CRA) [Figure 1] b and [Figure 1] c. Swept source optical coherence tomography ...

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    7. Swept source: optical coherence tomography angiography features of choroidal osteoma with choroidal neovascular membrane

      Swept source: optical coherence tomography angiography features of choroidal osteoma with choroidal neovascular membrane

      A 16-year-old boy presented with best-corrected visual acuity of 6/18 OD. OS was within normal limits, as was anterior segment OD. A focal whitish-yellow plaque lesion with overlying areas of depigmentation, and retinal atrophy in the central and superior lateral macula were noted in OD. A choroidal neovascular membrane (CNVM) with subretinal haemorrhage was seen at the lesion's inferior medial edge, involving the fovea (figure 1A). Therefore, diagnosis of choroidal osteoma 1 (CO) was made and confirmed on sonography, with a highly acoustic elevated lesion causing a corresponding shadow (figure 1B).

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    1-7 of 7
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    1. (1 articles) Tufts University
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    Swept source: optical coherence tomography angiography features of choroidal osteoma with choroidal neovascular membrane Swept source optical coherence tomography-angiography of an infarct of a small intra-neural branch of central retinal artery simulating cilio-retinal artery Characterization of Idiopathic Choroidal Neovascularization Using Fluorescein Angiography, Indocyanine Green Angiography, and Optical Coherence Tomography Angiography In vivo optical biopsy of choroidal osteoma: a swept source optical coherence tomography–based tumor characterization Peripapillary Retinal and Choroidal Perfusion in Nonarteritic Ischemic Optic Neuropathy Using Optical Coherence Tomography Angiography OCTA in neuro-ophthalmology: Current clinical role and future perspectives Intraoperative optical coherence tomography (I-OCT)-guided identification of resolved sub-internal limiting membrane hemorrhage in leukemic retinopathy Novel Optical Coherence Tomography Parameters as Prognostic Factors for Stage 3 Epiretinal Membranes En-face OCT and OCT angiography analysis of macular choroidal macrovessel Three-dimensional live imaging of bovine embryos by optical coherence tomography Comparison of Subfoveal Choroidal Thickness and Retinal Nerve Fiber Layer Thickness in Patients with Coronary Slow Flow Phenomenon and Microvascular Angina: Optical Coherence Tomography based study Optical Coherence Tomography of the Orbit Through a Staphyloma: A View of Tenon's Capsule, Orbital Fat, and Inferior Oblique Muscle