1. Articles from Anat Loewenstein

    1-13 of 13
    1. Spectral Domain Optical Coherence Tomography Features For Accurate Diagnosis

      Spectral Domain Optical Coherence Tomography Features For Accurate Diagnosis

      UY SDC Abstract In Brief Author Information Article Metrics Purpose: To report a cohort with optic disk pit maculopathy (ODPM) presenting with neurosensory macular detachment that were initially misdiagnosed and mistreated; and to describe structural features on spectral domain optical coherence tomography in misdiagnosed and all other consecutive cases of ODPM. Methods: Multicenter international retrospective cohort study. Participants: 59 eyes from 59 patients with ODPM. Main outcome measures: 1) Proportion of patients with ODPM initially misdiagnosed, inaccurate diagnosis and treatment. 2) Morphologic features on spectral domain optical coherence tomography : other causes of subretinal and/or intraretinal fluid, inner/outer retinoschisis ...

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    2. Digital Imaging in Vitreoretinal Surgery Advances could improve surgical outcomes and change how vitrectomy is taught

      Digital Imaging in Vitreoretinal Surgery Advances could improve surgical outcomes and change how vitrectomy is taught

      S urgery is an ever-evolving field, driven toward achieving better outcomes with fewer complications. Therefore, it is a natural frontier for the development and application of novel technologies, designed to improve results, make procedures easier, and make the impossible a reality. Vitreoretinal surgery is a highly advanced and specialized subfield of surgery, which relies heavily on technology. For instance, although primitive forms of ocular surgery have existed for centuries, vitreoretinal surgery has only been possible for several decades. Taking retinal detachment as an example, it was an irreversible blinding condition until the development of scleral buckling by Schepens in the ...

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    3. MULTIMODAL IMAGING OF CHOROIDAL AND OPTIC DISK VESSELS NEAR OPTIC DISK PITS

      MULTIMODAL IMAGING OF CHOROIDAL AND OPTIC DISK VESSELS NEAR OPTIC DISK PITS

      Purpose: To describe modern multimodal imaging of the choroidal and optic disk vessels in optic disk pits. Methods: Case reports of four patients with optic disk pit who underwent multimodal imaging of the optic pit and surrounding structures. Patients included in this article were found to have optic disk pits and subsequently underwent multimodal imaging. Results: Cilioretinal arteries were present in two of the four cases (50%). SPECTRALIS optical coherence tomography showed intraretinal and subretinal fluid in all cases. Small vessels in the choroid and in the disk around the pit were also present in all cases through optical coherence ...

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    4. UNDERDIAGNOSED OPTIC DISK PIT MACULOPATHY: Spectral Domain Optical Coherence Tomography Features For Accurate Diagnosis

      UNDERDIAGNOSED OPTIC DISK PIT MACULOPATHY: Spectral Domain Optical Coherence Tomography Features For Accurate Diagnosis

      Purpose: To report a cohort with optic disk pit maculopathy (ODPM) presenting with neurosensory macular detachment that were initially misdiagnosed and mistreated; and to describe structural features on spectral domain optical coherence tomography in misdiagnosed and all other consecutive cases of ODPM. Methods: Multicenter international retrospective cohort study. Participants: 59 eyes from 59 patients with ODPM. Main outcome measures: 1) Proportion of patients with ODPM initially misdiagnosed, inaccurate diagnosis and treatment. 2) Morphologic features on spectral domain optical coherence tomography : other causes of subretinal and/or intraretinal fluid, inner/outer retinoschisis, communication with optic disk pit, and retinal pigment epithelium ...

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    5. Optical coherence tomography angiography findings in diabetic retinopathy

      Optical coherence tomography angiography findings in diabetic retinopathy

      Introduction : Diabetic retinopathy (DR) is a common complication of diabetes and a leading cause of blindness in working age population. Fluorescein angiography is still the gold standard in the evaluation of retinal vascular perfusion and diagnosis of macular ischemia. However, it is a costly, time-consuming procedure and it requires intravenous injection of contrast agent, exposing patients to potential side effects. Optical coherence tomography angiography (OCTA) is a novel, non-invasive imaging technique that provides dyeless visualization of blood flow in different retinal layers. Areas covered : An extensive review of the literature was performed to detail technical principles of OCTA and to ...

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    6. Preservation of the Photoreceptor Layer following Subthreshold Laser Treatment for Diabetic Macular Edema as Demonstrated by SD-OCT

      Preservation of the Photoreceptor Layer following Subthreshold Laser Treatment for Diabetic Macular Edema as Demonstrated by SD-OCT

      Purpose: Subthreshold laser treatment of diabetic macular edema (DME) may have less deleterious effects on the photoreceptors than regular continuous wave laser. This study aimed to assess whether subthreshold laser causes a long-term damage to the retinal structures, as demonstrated by spectral-domain optical coherence tomography (SD-OCT), and to evaluate the change in the axial diameter of retinal diabetic microaneurysms following treatment. Methods: A retrospective study of eyes that were diagnosed with non-foveal involving DME and underwent subthreshold laser treatment with the Lumenis Novus SRT system. SD-OCT scans of treated retinal areas, performed prior to treatment and approximately 4 months following ...

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    7. The Use of Spectral-Domain Optical Coherence Tomography for Differentiating Long-standing Central Retinal Artery Occlusion and Nonarteritic Anterior Ischemic Optic Neuropathy

      The Use of Spectral-Domain Optical Coherence Tomography for Differentiating Long-standing Central Retinal Artery Occlusion and Nonarteritic Anterior Ischemic Optic Neuropathy

      BACKGROUND AND OBJECTIVE: To report on the efficacy of macular and optic nerve spectral-domain optical coherence tomography (SD-OCT) in differentiating between long-standing central retinal artery occlusion (CRAO) and nonarteritic anterior ischemic optic neuropathy (NAION). PATIENTS AND METHODS: SD-OCT scans of the macula and optic nerve in 24 patients with unilateral optic atrophy secondary to CRAO (12 patients) and NAION (12 patients) were compared both qualitatively and quantitatively for differentiating features. RESULTS: In patients with long-standing CRAO, there was a significantly greater ( P < .001) thinning of the macula relative to the fellow uninvolved eye (–59.7 ± 31.8 μm) compared to ...

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    8. Vitreal, retinal, and choroidal findings in active and scarred toxoplasmosis lesions: a prospective study by spectral-domain optical coherence tomography

      Vitreal, retinal, and choroidal findings in active and scarred toxoplasmosis lesions: a prospective study by spectral-domain optical coherence tomography

      Background The aim of our study was to investigate vitreal, retinal, and choroidal morphologic changes in active and scarred toxoplasmosis lesions using spectral-domain optical coherence tomography (SD-OCT). Methods In this prospective study, 19 eyes of 15 consecutive patients with ocular toxoplasmosis were included. Complete ophthalmologic examination and SD-OCT were done at the initial visit and during follow-up. Retina and choroid SD-OCT protocols directed to macular area and lesions observed on clinical examination were used. Results Seventeen active lesions and 56 retinochoroidal scars were studied. In the acute phase, disruption, thickening, and hyper-reflectivity of the neurosensory retina with photoreceptor (PR) interruption ...

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    9. Choroid thickness measurement with RTVue optical coherence tomography in emmetropic eyes, mildly myopic eyes, and highly myopic eyes

      Choroid thickness measurement with RTVue optical coherence tomography in emmetropic eyes, mildly myopic eyes, and highly myopic eyes

      Purpose. To evaluate choroid thickness (CT) with RTVue spectral domain optical coherence tomography (SD-OCT) and the effect of age and myopia in eyes without posterior complications. Methods. In this multicenter cross-sectional study, all enrolled patients were over age 18 and divided them in 3 groups based on refraction: emmetropia (+1 D to –1 D), mild myopia (–1 D to –6 D), and high myopia (–6 D to –20 D) groups. Horizontal scans through the fovea were acquired with RTVue OCT (Optovue Inc., Fremont, California, USA). Choroid thickness was measured at 500 µm intervals up to 1,500 µm temporal and ...

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    10. Enhanced Depth Imaging Optical Coherence Tomography: Choroidal Thickness and Correlations With Age, Refractive Error, and Axial Length

      Enhanced Depth Imaging Optical Coherence Tomography: Choroidal Thickness and Correlations With Age, Refractive Error, and Axial Length

      BACKGROUND AND OBJECTIVE: To evaluate choroidal thickness at five macular locations and assess the correlations between choroidal thickness at these locations with age, refractive error, and axial length. PATIENTS AND METHODS: Eighty-four eyes from 42 healthy adult volunteers were included. Enhanced depth imaging by spectral-domain optical coherence tomography was performed, and choroidal thickness was measured at five macular locations: subfoveal and 3 mm nasal, temporal, superior, and inferior. Correlations of choroidal thickness at each location with age, refractive error, and axial length were analyzed. RESULTS: Mean choroidal thicknesses at the subfoveal, superior, inferior, temporal, and nasal locations were 293, 308 ...

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    11. Spectral Domain Optical Coherence Tomography Classification of Acute Posterior Multifocal Placoid Pigment Epitheliopathy

      Spectral Domain Optical Coherence Tomography Classification of Acute Posterior Multifocal Placoid Pigment Epitheliopathy

      Purpose: To study the retinal morphologic changes occurring in acute posterior multifocal placoid pigment epitheliopathy using spectral domain optical coherence tomography. Methods: Prospective observational case series of 12 eyes (6 consecutive patients) diagnosed with acute posterior multifocal placoid pigment epitheliopathy. All patients underwent complete ophthalmologic examination, fundus photography, fluorescein angiography, and spectral domain optical coherence tomography at the initial visit. During follow-up, ophthalmologic examination and spectral domain optical coherence tomography scans were performed. The scans were directed to the lesions observed on the clinical examination and fluorescein angiography. Results: Spectral domain optical coherence tomography classification containing four distinct stages for ...

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    12. Heidelberg Spectral-Domain Optical Coherence Tomographic Findings in Retinal Artery Macroaneurysm

      Heidelberg Spectral-Domain Optical Coherence Tomographic Findings in Retinal Artery Macroaneurysm
      Purpose: To describe the morphologic variables of macroaneurysms, to assess their diameter in comparison to their upstream/downstream vessel diameter as visualized on spectral-domain optical coherence tomography, and to describe morphologic changes in the retina adjacent to macroaneurysm. Methods: A retrospective case series of adult patients who were clinically diagnosed with retinal macroaneurysms and who underwent Heidelberg spectral-domain optical coherence tomography (OCT) between June 2009 and October 2010. Results: A total of 12 patients (age range, 31-95 years, 2 men) in whom macroaneurysms were demonstrated by spectral-domain OCT (12 eyes). All the macroaneurysms had a typical OCT appearance, and a ...
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    1-13 of 13
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    Heidelberg Spectral-Domain Optical Coherence Tomographic Findings in Retinal Artery Macroaneurysm Spectral Domain Optical Coherence Tomography Classification of Acute Posterior Multifocal Placoid Pigment Epitheliopathy Enhanced Depth Imaging Optical Coherence Tomography: Choroidal Thickness and Correlations With Age, Refractive Error, and Axial Length Choroid thickness measurement with RTVue optical coherence tomography in emmetropic eyes, mildly myopic eyes, and highly myopic eyes Vitreal, retinal, and choroidal findings in active and scarred toxoplasmosis lesions: a prospective study by spectral-domain optical coherence tomography The Use of Spectral-Domain Optical Coherence Tomography for Differentiating Long-standing Central Retinal Artery Occlusion and Nonarteritic Anterior Ischemic Optic Neuropathy Preservation of the Photoreceptor Layer following Subthreshold Laser Treatment for Diabetic Macular Edema as Demonstrated by SD-OCT Optical Coherence Tomography Biomarkers as Functional Outcome Predictors in Diabetic Macular Edema Treated with Dexamethasone Implant Optical coherence tomography angiography findings in diabetic retinopathy MULTIMODAL IMAGING OF CHOROIDAL AND OPTIC DISK VESSELS NEAR OPTIC DISK PITS Optical Coherence Tomography Findings in Tamoxifen Retinopathy Assessment of Cardiac Allograft Vasculopathy from OCT Images: Automated Analysis is as Good as Expert-Guided Approach