1. Articles from Rajpal Vohra

    1-5 of 5
    1. 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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    2. 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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    3. Swept source optical coherence tomography-angiography of choroid in choroidal hemangioma before and after laser photocoagulation

      Swept source optical coherence tomography-angiography of choroid in choroidal hemangioma before and after laser photocoagulation

      Swept source optical coherence tomography-angiography (OCT-angiography) gives us a unique opportunity to study the vasculature of choroidal lesions in vivo . We describe the OCT angiographic characteristics of circumscribed choroidal hemangioma before and after laser photocoagulation. Medium-sized choroidal vessels/vessels on the tumor surface become predominantly visible after laser photocoagulation due to laser-induced damage to the overlying choriocapillaris. OCT-angiography adds a new dimension to in vivo analysis of vascular changes in choroid due to choroidal tumors and their response to therapy.

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    4. Combined Hamartoma of the Retina and Retinal Pigment Epithelium: An Optical Coherence Tomography-Based Reappraisal

      Combined Hamartoma of the Retina and Retinal Pigment Epithelium: An Optical Coherence Tomography-Based Reappraisal

      Purpose To analyze the optical coherence tomography (OCT) characteristics of combined hamartoma of the retina and retinal pigment epithelium (CHRRPE) involving the macula. Design Retrospective, observational case series. Methods Setting: Single institutional. Study population: Fourteen consecutive patients of CHRRPE were included. Observation procedures: The authors analyzed the clinical features, color fundus photography, and swept source or spectral domain OCT of all the involved eyes. Main outcome measures: OCT characteristics, especially the involvement of the retinal pigment epithelium (RPE). Results Total 16 eyes of 5 female and 9 male patients were analyzed. The mean age (±SD) was 17.9 ± 6.4 ...

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    5. Optical Coherence Tomography Angiography Study of Choroidal Neovascularization Associated With Focal Choroidal Excavation

      Optical Coherence Tomography Angiography Study of Choroidal Neovascularization Associated With Focal Choroidal Excavation

      The authors report the use of optical coherence tomography angiography (OCTA) (DRI OCT Triton; Topcon, Tokyo, Japan) to localize, characterize, and confirm the presence of a choroidal neovascular membrane in a patient of focal choroidal excavation (FCE) with recent-onset metamorphopsia and visual blurring. En face OCTA images just above the level of the retinal pigment epithelium-Bruch's membrane complex typically showed the presence of a glomerulus-like neovascular network with an adjacent dark area suggestive of a Type 2 choroidal neovascularization (CNV). OCTA was found to be a very useful, noninvasive, and quick imaging modality to detect secondary CNV formation in ...

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    1-5 of 5
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  2. Topics in the News

    1. (1 articles) L V Prasad Eye Institute
    2. (1 articles) Topcon Medical Systems
    3. (1 articles) The Chinese University of Hong Kong
    4. (1 articles) Cleveland Clinic
    5. (1 articles) Saarland University
    6. (1 articles) Tomey Corporation
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    Optical Coherence Tomography Angiography Study of Choroidal Neovascularization Associated With Focal Choroidal Excavation Combined Hamartoma of the Retina and Retinal Pigment Epithelium: An Optical Coherence Tomography-Based Reappraisal Swept source optical coherence tomography-angiography of choroid in choroidal hemangioma before and after laser photocoagulation 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 Feasibility study to improve deep learning in OCT diagnosis of rare retinal diseases with few-shot classification Functional characteristics of glaucoma related arcuate defects seen on OCT en face visualisation of the retinal nerve fibre layer Heads-up Digitally Assisted Surgical Viewing with Intraoperative Optical Coherence Tomography for Myopic Schisis Repair Optical Coherence Tomography Findings in Nodular Anterior Scleritis due to Post-Streptococcal Syndrome Comparison of Choroidal Thickness Measurements between Spectral-domain Optical Coherence Tomography and Swept-source Optical Coherence Tomography in Children Recent advances and future directions on the use of optical coherence tomography in neuro-ophthalmology Contactless mapping of ceramic green density using optical coherence tomography