1. Seoul National University

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    1. Mentioned In 114 Articles

    2. Optical Coherence Tomography for the Diagnosis and Monitoring of Glaucoma

      Optical Coherence Tomography for the Diagnosis and Monitoring of Glaucoma
      Since its introduction to the field of ophthalmology, optical coherence tomography (OCT) has been markedly improved in terms of imaging protocols, algorithms, and new parameters that have enhanced its utility for the diagnosis and assessment of glaucoma progression. In this review, we examine the clinical utility of OCT in the diagnosis of glaucoma and monitoring of its progression, and emphasize the technological advances that facilitate both glaucoma research and the ...
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    3. Inner macular layer thickness by spectral domain optical coherence tomography in children and adults: a hospital-based study

      Inner macular layer thickness by spectral domain optical coherence tomography in children and adults: a hospital-based study
      Purpose To establish the normative ranges of macular ganglion cell layer (mGCL) and macular inner plexiform layer (mIPL) thickness using Spectralis spectral domain optical coherence tomography (SD-OCT) (Heidelberg Engineering, Inc., Heidelberg, Germany) in both Korean children and adults, and to determine factors associated with mGCL and mIPL thickness. Methods We conducted a retrospective, observational study of 573 healthy subjects (570 years old) who underwent comprehensive ophthalmic examinations in a single ...
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    4. Association Between IVUS and OCT Parameters and Invasive Physiologic Indices

      Association Between IVUS and OCT Parameters and Invasive Physiologic Indices
      Given the inherent limitations of coronary angiography to depict the presence of functionally significant epicardial coronary stenosis and discrepancy between angiographic stenosis severity and the presence of myocardial ischemia, invasive physiologic indices such as fractional flow reserve (FFR) or instantaneous wave-free ratio (iFR) has been a standard method to guide decision of revascularization. Intravascular ultrasound (IVUS) and optical coherence tomography (OCT) are an intracoronary imaging method able to provide information ...
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    5. Optical coherence tomography angiography analysis of changes in the retina and the choroid after haemodialysis

      Optical coherence tomography angiography analysis of changes in the retina and the choroid after haemodialysis
      The purpose of this study is to evaluate the effect of haemodialysis on perfused vessel density, choroidal thickness (CT), and retinal thickness in end-stage renal disease (ESRD) using swept-source optical coherence tomography angiography (SS-OCTA). We studied twenty-nine eyes of 29 ESRD patients by ophthalmologic examination and SS-OCTA before and after haemodialysis. The colour-coded perfusion density maps were generated and perfused vessel density was calculated. Changes in systemic and other ocular ...
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    6. Three dimensional neuro-retinal rim thickness and retinal nerve fiber layer thickness using high-definition optical coherence tomography for open-angle glaucoma

      Three dimensional neuro-retinal rim thickness and retinal nerve fiber layer thickness using high-definition optical coherence tomography for open-angle glaucoma
      Purpose To compare the diagnostic capability of three-dimensional (3D) neuro-retinal rim thickness (NRR) with existing optic nerve head and retinal nerve fiber layer (RNFL) scan parameters using high-definition optical coherence tomography (HD-OCT). Design Retrospective study. Methods Based on the mean deviation (MD) of the Humphrey Field Analyzer (HFA), the 152 subjects were categorized into mild (MD 6 dB, 100), moderate (MD 6 to 12 dB, 26), and severe (MD 12 ...
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    7. Serial Combined Wide-Field Optical Coherence Tomography Maps for Detection of Early Glaucomatous Structural Progression

      Serial Combined Wide-Field Optical Coherence Tomography Maps for Detection of Early Glaucomatous Structural Progression
      Importance Both parapapillary and macular areas are important in determining the progression of early glaucoma. However, no attempt has been made to assess the progression of glaucoma in images that combine the 2 areas. Objective To evaluate the potential usefulness of serial analysis of combined wide-field optical coherence tomography (OCT) maps for detection of structural progression in patients with early glaucoma. Design, Setting, and Participants Retrospective observational study. Patients with ...
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    8. Quantitative measurement of peri-implant bone defects using optical coherence tomography

      Quantitative measurement of peri-implant bone defects using optical coherence tomography
      Purpose The purpose of this study was to visualize and identify peri-implant bone defects in optical coherence tomography (OCT) images and to obtain quantitative measurements of the defect depth. Methods Dehiscence defects were intentionally formed in porcine mandibles and implants were simultaneously placed without flap elevation. Only the threads of the fixture could be seen at the bone defect site in the OCT images, so the depth of the peri-implant ...
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    9. Can Probability Maps of Swept-Source Optical Coherence Tomography Predict Visual Field Changes in Preperimetric Glaucoma?

      Can Probability Maps of Swept-Source Optical Coherence Tomography Predict Visual Field Changes in Preperimetric Glaucoma?
      Purpose : To determine the usefulness of swept-source optical coherence tomography (SS-OCT) probability maps in detecting locations with significant reduction in visual field (VF) sensitivity or predicting future VF changes, in patients with classically defined preperimetric glaucoma (PPG). Methods : Of 43 PPG patients, 43 eyes were followed-up on every 6 months for at least 2 years were analyzed in this longitudinal study. The patients underwent wide-field SS-OCT scanning and standard automated ...
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    10. Macular imaging by optical coherence tomography in the diagnosis and management of glaucoma

      Macular imaging by optical coherence tomography in the diagnosis and management of glaucoma
      The macular area is important to the detection of glaucomatous retinal ganglion cell (RGC) damage. Macular thickness complementary to peripapillary retinal nerve fibre layer (RNFL) thickness can well reflect glaucomatous damage, given that the macula contains more than 50% of the RGCs in a multilayered pattern and larger RGC bodies compared with their axons. Thus, macular ganglion cell thickness parameters recently have been considered to be an effective glaucoma-diagnostic tool ...
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    11. Measurement of Optic Disc Cup Surface Depth Using Cirrus HD-OCT

      Measurement of Optic Disc Cup Surface Depth Using Cirrus HD-OCT
      Purpose: To introduce the measurement method of optic disc cup surface depth using spectral-domain optical coherence tomography (SD-OCT) and then evaluate the rates of cup surface depression at three different stages of glaucoma. Methods: We retrospectively identified 52 eyes with preperimetric glaucoma, 56 with mild-or-moderate glaucoma and 50 with severe glaucoma and followed them for at least 48 months. Eyes were imaged using SD-OCT (Cirrus(TM) HD-OCT) at 12-month intervals ...
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    12. Assessment of OCT color probability codes in myopic glaucoma eyes after applying a myopic normative database

      Assessment of OCT color probability codes in myopic glaucoma eyes after applying a myopic normative database
      Purpose To evaluate the optical coherence tomography (OCT) color probability codes based on a myopic normative database and to investigate whether the implementation of the myopic normative database can improve the OCT diagnostic ability in myopic glaucoma. Design Comparative validity study. Methods In this study, 305 eyes (154 myopic healthy eyes and 151 myopic glaucoma eyes) were included. A myopic normative database was obtained based on myopic healthy eyes. We ...
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    13. Evaluation of Optic Nerve Head and Peripapillary Choroidal Vasculature Using Swept-source Optical Coherence Tomography Angiography

      Evaluation of Optic Nerve Head and Peripapillary Choroidal Vasculature Using Swept-source Optical Coherence Tomography Angiography
      Purpose: The authors visualized arterioles from the peripapillary choroid to the optic nerve head in vivo, using swept-source optical coherence tomography angiography. Methods and Results: In this case series, we present 3 eyes with visible centripetal branches from the peripapillary choroid. The 3 eyes were diagnosed as glaucoma suspect, normal-tension glaucoma, and primary open-angle glaucoma. In the en face projection images of the choroidal layer, obtained by swept-source optical coherence ...
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    14. Pseudophakic Macular Edema in Primary Open-Angle Glaucoma: a Prospective Study Using Spectral-Domain Optical Coherence Tomography

      Pseudophakic Macular Edema in Primary Open-Angle Glaucoma: a Prospective Study Using Spectral-Domain Optical Coherence Tomography
      Purpose To determine the incidence of and risk factors for pseudophakic macular edema (PME) after uncomplicated cataract surgery in primary open-angle glaucoma (POAG) using spectral-domain optical coherence tomography (SD-OCT). Design Cohort study Methods Macular retinal thickness was evaluated using SD-OCT at 1-week before surgery and at 1-, 3-, 6-, and 12-months postoperatively, in 70 POAG and 68 control eyes. Forty-three healthy subjects without impaired vision or cystoid PME were recruited ...
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    15. Fundus autofluorescence in the buried optic disc drusen: optical coherence tomography findings

      Fundus autofluorescence in the buried optic disc drusen: optical coherence tomography findings
      Optic disc drusen (ODD) is hyaline material within the disc that frequently shows flecks of calcium. 1 Electron microscopic examination revealed that ODD is composed of aggregates of extracellular mitochondria containing calcium crystals. 2 Most diagnostic methods, such as B-scan ultrasonography and computed tomography, focus on the calcification signal. 3 However, calcification is not always detectable, as seen in the buried ODD. 4 Spectral-domain optical coherence tomography (SD-OCT) enables the ...
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  2. About Seoul National University

    Seoul National University

    Seoul National University is a public research university located in Seoul, Republic of Korea, ranked 50th in the world and 8th in Asia by US News and World Report, and 24th in the world in publications by the Science Citation Index Founded in 1946, Seoul National University was the first national university in South Korea, and served as a model for the many national and public universities in the country. Seoul National University has been recognized for its leading role in Korean academia. 

    Seoul National University Hospital is located in Gumi-dong, Bundang, Seongnam, Gyeonggi-do, South Korea. It began its first treatment on 10 May 2003. It was set up due to a rapid increase in demand for geriatric treatment and the government's request for the establishment of a medical facility for local residents. Seoul National University Bundang Hospital, consists of 6 departments : the Geriatric Medical Centre, Heart Centre, Cranial nerve Centre, Lung Centre, Articulation Centre, and the Health Improvement Centre, and 23 departments, such as Internal Medicine, Surgery, Chest Surgery, Neurosurgery, Orthopaedics, Plastic Surgery, Obstetrics and Gynaecology, and Pediatrics. There is also an accident and emergency department.