Oh Woong Kwon

ORCID: 0000-0001-9786-6756
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About
Contact & Profiles
Research Areas
  • Retinal Diseases and Treatments
  • Retinal and Optic Conditions
  • Retinal and Macular Surgery
  • Glaucoma and retinal disorders
  • Retinal Imaging and Analysis
  • Intraocular Surgery and Lenses
  • Ocular Diseases and Behçet’s Syndrome
  • Retinal Development and Disorders
  • Ocular Oncology and Treatments
  • Vascular Malformations Diagnosis and Treatment
  • Cerebral Venous Sinus Thrombosis
  • Acute Ischemic Stroke Management
  • Corneal Surgery and Treatments
  • Ocular Surface and Contact Lens
  • Ocular Infections and Treatments
  • Retinopathy of Prematurity Studies
  • Toxoplasma gondii Research Studies
  • Ocular and Laser Science Research
  • Corneal surgery and disorders
  • Ocular Disorders and Treatments
  • Ophthalmology and Visual Impairment Studies
  • Traumatic Ocular and Foreign Body Injuries
  • Systemic Lupus Erythematosus Research
  • Cytomegalovirus and herpesvirus research
  • Angiogenesis and VEGF in Cancer

Nune Eye Hospital
2014-2025

Yonsei University
2005-2015

The Retina Center
2010-2015

Severance Hospital
2004-2013

Yonsei University Health System
2012

Kyung Hee University
2010

Vision Eye Institute
2009

Ministry of Health and Welfare
2004

The Ohio State University
1990

Vascular endothelial cell growth factor (VEGF) is strongly induced by oxidative stress in retinal pigment epithelial (RPE) cells, and VEGF-A a survival for various types. This study was conducted to determine whether the autocrine VEGF signaling pathway RPE cells involved mechanism of adaptive response stress.ARPE-19 were treated with hydrogen peroxide, death measured flow cytometry annexin V-fluorescein isothiocyanate. Survival analysis performed pretreatment VEGF-A-neutralizing antibodies,...

10.1167/iovs.09-4144 article EN Investigative Ophthalmology & Visual Science 2010-01-18

To evaluate the effects of macular ischemia on visual outcomes in patients with diabetic edema (DME), after intravitreal bevacizumab injections.Data 59 eyes 53 consecutive treated for DME were retrospectively reviewed. Data from preoperative fluorescein angiography (FA) tests examined. Patients an enlarged foveal avascular zone (FAZ), >or=1000 microm, or a broken perifoveal capillary ring at border FAZ, distinct area nonperfusion within one disk diameter center transit phase angiography,...

10.1097/iae.0b013e3181754209 article EN Retina 2008-07-01

The purpose of this study was to evaluate the effectiveness intravitreal injection bevacizumab for treatment central serous chorioretinopathy.In retrospective case series, six patients (six eyes) with chorioretinopathy were treated an bevacizumab. outcome measures included visual acuity Early Treatment Diabetic Retinopathy Study letters, macular thickness measurement optical coherence tomography, changes in fluorescein angiography, and indocyanine green angiography.The mean age 42.3 years...

10.1097/iae.0b013e3181bcf0b4 article EN Retina 2010-01-01

In Brief Purpose: To evaluate the concentration of various cytokines in aqueous humor patients with naive, recurrent, and regressed choroidal neovascularization (CNV) age-related macular degeneration after bevacizumab treatment. Methods: Aqueous samples were collected from 36 eyes 10 controls during cataract surgery. Of degeneration, 5 naïve to injection, 14 had recurrent CNV treatment, 17 Cytokines measured by an immunoassay using multianalyte biochip array technology (Evidence investigator...

10.1097/iae.0b013e318195cb15 article EN Retina 2009-04-01

<i>Objective:</i> To report the initial experiences with 25-gauge transconjunctival sutureless vitrectomy (TSV) system, including intraoperative and postoperative problems. <i>Methods:</i> We retrospectively reviewed medical records surgical videotapes of 50 consecutive patients who underwent performed by one surgeon using TSV system. <i>Results:</i> Intraoperatively, we encountered such problems as difficulty in inserting microcannula, which led to...

10.1159/000093081 article EN Ophthalmologica 2006-01-01

To describe the pathoanatomy of diabetic macular edema in optical coherence tomography and its correlation with fluorescein angiography patterns.Sixty eyes 56 patients were analyzed. Diabetic was classified into typical focal leakage (from microaneurysm), diffuse (the capillary plexus), or combined/questionable using retinal thickness profiles. The pooling patterns matched to corresponding images analyzed.Focal shows swelling predominantly outer plexiform layer (OPL). Deeply located...

10.1097/iae.0b013e3182349686 article EN Retina 2012-04-05

In Brief Purpose: To describe characteristic findings of acute retinal ischemic damage in optical coherence tomography. Methods: Eighteen cases arterial occlusion with available fundus photography, tomography, and/or fluorescein angiography the early phase (<1 month) more than 2 months follow-up were reviewed. A site-to-site analysis between tomography morphology and correlating images done on each visit. Results: Retinal opacities at first presentation vague to mild opacity four eyes,...

10.1097/iae.0b013e3182899205 article EN Retina 2013-04-17

&lt;i&gt;Purpose:&lt;/i&gt; Indications for photodynamic therapy (PDT) have increased from age-related macular degeneration with choroidal neovascularization (CNV), containing more than 50% of the classic component, to occult CNV, myopic CNV and due ocular histoplasmosis syndrome. In present study, effect PDT verteporfin was examined in polypoidal vasculopathy (PCV) macula. &lt;i&gt;Methods:&lt;/i&gt; performed 9 eyes PCV Fundus examination, fluorescein angiography, indocyanine green...

10.1159/000076844 article EN Ophthalmologica 2004-01-01

PURPOSE. This study was undertaken to investigate the association between complement factor H (CFH) gene and exudative age-related macular degeneration (AMD) in Korean patients. METHODS. Genomic DNA isolated from peripheral leukocytes of patients with AMD (n 114) control subjects 187). The sole criterion for presence choroidal neovascularization. Four single-nucleotide polymorphisms (SNPs: 275CT, I62V, Y402H, IVS15) located promoter, exon 2, 9, intron 15 CFH were genotyped by PCR-based...

10.1167/iovs.07-1195 article EN Investigative Ophthalmology & Visual Science 2008-04-24

Retinal pigment epithelium (RPE) cells of the proliferative vitreoretinopathy (PVR) membrane take on shape fibroblasts and participate in fibrosis, thus deviating from character epithelial cells. This study was undertaken to evaluate RPE cell transdifferentiation vitro. During culture porcine cells, primary 10th-passaged were investigated for growth response transforming factor (TGF) β&lt;sub&gt;2&lt;/sub&gt;, change phenotype amount collagen synthesis as well expression α-smooth-muscle...

10.1159/000055648 article EN Ophthalmic Research 2001-01-01

&lt;div class="ftSection"&gt;&lt;span class="ftInlineSubsectionTitle"&gt;Background and Objective:&lt;/span&gt;&lt;p&gt;To investigate the factors related to postoperative hypotony after 25-gauge sutureless vitrectomy.&lt;/p&gt;&lt;/div&gt;&lt;div class="ftInlineSubsectionTitle"&gt;Patients Methods:&lt;/span&gt;&lt;p&gt;Of 109 consecutive eyes undergoing vitrectomy, 95 fluid-filled were randomly assigned three groups according order of infusion cannula removal. In group 1 (30 eyes), was...

10.3928/15428877-20080301-04 article EN Ophthalmic surgery, lasers & imaging retina 2008-01-01

This pilot study aimed to evaluate the efficacy and safety of subthreshold micropulse yellow (577-nm) laser photocoagulation (SMYLP) in treatment diabetic macular edema (DME).We reviewed 14 eyes 12 patients with DME who underwent SMYLP a 15% duty cycle at an energy level immediately below that test burn. The exposure time was 20 ms spot diameter 100 µm. Laser pulses were administered confluent, repetitive manner 3 × pattern mode.The mean follow-up 7.9 ± 1.6 months. baseline-corrected visual...

10.3341/kjo.2014.28.5.379 article EN cc-by-nc Korean Journal of Ophthalmology 2014-01-01

To investigate the clinical features of central retinal vein occlusion (CRVO) in relation to presence a prominent middle limiting membrane (p-MLM) sign on presenting optical coherence tomography, which may suggest macular ischemia and poor visual outcome.Fifty consecutive eyes with acute CRVO <1 month symptom duration before presentation were retrospectively reviewed. A hyperreflective line located outer plexiform layer tomography was used as ischemia. Cases p-MLM grouped compared group no...

10.1097/iae.0000000000000054 article EN Retina 2013-12-30

&lt;i&gt;Aims:&lt;/i&gt; To evaluate the short-term safety and efficacy of a single intravitreal bevacizumab injection in patients with polypoidal choroidal vasculopathy (PCV). &lt;i&gt;Methods:&lt;/i&gt; The records treated for PCV were retrospectively reviewed. All evaluated by complete ophthalmic examination, optical coherence tomography fluorescein indocyanine green angiography. Changes visual acuity central retinal thickness (CRT) over 3 months main outcome measures....

10.1159/000175312 article EN Ophthalmologica 2008-11-21

To identify optical coherence tomography (OCT) patterns of diabetic macular edema (DME) predictive visual outcomes after intravitreal bevacizumab (IVB; Avastin®) injection.We retrospectively examined 56 consecutive eyes that were given IVB injections for DME alongside the preoperative OCT data. Using this information, we categorized into 2 groups: group 1 showing diffuse patterns; demonstrating cystoid (CME).The mean follow-up period was 11.66 ± 3.98 months. Group gained 0.04 9.27 ETDRS...

10.1159/000313820 article EN Ophthalmologica 2010-01-01

A retrospective case report of a retinitis pigmentosa patient who underwent vitrectomy for epiretinal membrane after intravitreal autologous stem cell implantation.A 71-year-old female RP came to our clinic ophthalmic evaluation injection. Four months ago, she injection both eyes at another hospital. New thick (ERM) with extensive macular pucker was found on her left eye. She pars plana and membranectomy. After biopsy, many CD34-positive cells were detected in ERM specimen.This is the first...

10.1097/icb.0000000000000327 article EN Retinal Cases & Brief Reports 2016-05-12
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