1. Hyung Chan Kim

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    1. Mentioned In 12 Articles

    2. Post-treatment prediction of optical coherence tomography using a conditional generative adversarial network in age-related macular degeneration

      Post-treatment prediction of optical coherence tomography using a conditional generative adversarial network in age-related macular degeneration
      Purpose: To develop a deep learning model to generate post-treatment optical coherence tomography (OCT) images of neovascular age-related macular degeneration (nAMD). Methods: Two hundred ninety-eight patients with nAMD were included. The conditional generative adversarial network (cGAN) was trained using 15183 augmented paired OCT B-scan images obtained from 723 scans of 241 patients at baseline and 1 month after 3 loading doses of an anti-vascular endothelial growth factor (VEGF) treatment. The ...
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    3. Association of imaging factors derived from convolutional neural network with visual outcomes in age-related macular degeneration and polypoidal choroidal vasculopathy

      Association of imaging factors derived from convolutional neural network with visual outcomes in age-related macular degeneration and polypoidal choroidal vasculopathy
      We investigated the association of visual outcome in typical neovascular age-related macular degeneration (nAMD) and polypoidal choroidal vasculopathy (PCV) with or without pachychoroid with lesion areas on optical coherence tomography (OCT) quantified by convolutional neural network (CNN) analysis. Treatment-nave 132 nAMD and 45 PCV eyes treated with ranibizumab or aflibercept for at least 12 months were retrospectively reviewed. Significant factors, including intraretinal fluid (IRF), subretinal fluid (SRF), pigment epithelial detachment ...
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    4. Association Between Soluble CD14 in the Aqueous Humor and Hyperreflective Foci on Optical Coherence Tomography in Patients With Diabetic Macular Edema

      Association Between Soluble CD14 in the Aqueous Humor and Hyperreflective Foci on Optical Coherence Tomography in Patients With Diabetic Macular Edema
      Purpose : To investigate the associations between soluble CD14 (sCD14), a cytokine released by microglia and macrophages, and hyperreflective foci (HF) and various characteristics of spectral-domain optical coherence tomography (SD-OCT) in diabetic macular edema (DME). Methods : Sixty-nine eyes from 51 patients with DME and 28 eyes from 28 control subjects were studied. sCD14 levels in the aqueous humor (AH) were measured using ELISA before bevacizumab injection (IVB), and the associations between ...
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    5. QUANTIFICATION OF RETINAL VESSEL TORTUOSITY IN DIABETIC RETINOPATHY USING OPTICAL COHERENCE TOMOGRAPHY ANGIOGRAPHY

      QUANTIFICATION OF RETINAL VESSEL TORTUOSITY IN DIABETIC RETINOPATHY USING OPTICAL COHERENCE TOMOGRAPHY ANGIOGRAPHY
      Purpose: To investigate the association of vessel tortuosity with severity of diabetic retinopathy (DR) using optical coherence tomography angiography. Methods: We retrospectively analyzed 30 healthy eyes and 121 eyes of diabetic subjects with no DR, mild nonproliferative DR (NPDR), moderate to severe NPDR and proliferative DR (PDR). Binarized images were used to quantify the vessel tortuosity, vessel density, foveal avascular zone (FAZ) area, and FAZ acircularity. The vessels were divided ...
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    6. Foveal Microvascular Changes Based on Optical Coherence Tomography Angiography in Mild Nonproliferative Diabetic Retinopathy

      Foveal Microvascular Changes Based on Optical Coherence Tomography Angiography in Mild Nonproliferative Diabetic Retinopathy
      Purpose To investigate the microvascular change in diabetic patients with no diabetic retinopathy (DR) and mild nonproliferative DR (NPDR) using optical coherence tomography angiography (OCTA). Methods We retrospectively reviewed the medical records of 44 eyes of 22 patients with no DR and 34 eyes of 17 patients with mild NPDR. OCTA was performed on a 3 3 mm region centered in the fovea and parafoveal areas. The foveal avascular zone ...
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    7. CORRELATION OF OPTICAL COHERENCE TOMOGRAPHIC HYPERREFLECTIVE FOCI WITH VISUAL OUTCOMES IN DIFFERENT PATTERNS OF DIABETIC MACULAR EDEMA

      CORRELATION OF OPTICAL COHERENCE TOMOGRAPHIC HYPERREFLECTIVE FOCI WITH VISUAL OUTCOMES IN DIFFERENT PATTERNS OF DIABETIC MACULAR EDEMA
      Purpose: To investigate the correlation between the hyperreflective foci (HF) on spectral domain optical coherence tomography at the baseline and visual outcomes after intravitreal bevacizumab injections in different patterns of diabetic macular edema. Methods: We retrospectively reviewed the medical records of 97 eyes (80 patients) with diabetic macular edema that were treated with intravitreal bevacizumab injection. The eyes were categorized into three groups by optical coherence tomographic features: diffuse retinal ...
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    8. CORRELATION BETWEEN OPTICAL COHERENCE TOMOGRAPHIC HYPERREFLECTIVE FOCI AND VISUAL OUTCOMES AFTER ANTI-VEGF TREATMENT IN NEOVASCULAR AGE-RELATED MACULAR DEGENERATION AND POLYPOIDAL CHOROIDAL VASCULOPATHY

      CORRELATION BETWEEN OPTICAL COHERENCE TOMOGRAPHIC HYPERREFLECTIVE FOCI AND VISUAL OUTCOMES AFTER ANTI-VEGF TREATMENT IN NEOVASCULAR AGE-RELATED MACULAR DEGENERATION AND POLYPOIDAL CHOROIDAL VASCULOPATHY
      Purpose: To investigate the correlation between hyperreflective foci (HF) on spectral domain optical coherence tomography at baseline and visual outcomes after intravitreal anti-vascular endothelial growth factor injection in neovascular age-related macular degeneration (nAMD) and polypoidal choroidal vasculopathy (PCV). Methods: The authors retrospectively reviewed the medical records of 44 patients with nAMD and 44 patients with PCV. The number of HF was counted according to the location of HF on spectral ...
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    9. Comparison of the Efficacy between Time and Spectral Domain Optical Coherence Tomography for the Identification of Vitreomacular Interface

      Comparison of the Efficacy between Time and Spectral Domain Optical Coherence Tomography for the Identification of Vitreomacular Interface
      ...ral Domain Optical Coherence Tomography for the Identification of Vitreomacular Interface Ja Young You, MD,^1 Hyung Chan Kim, MD, PhD,^1 and Jun Woong Moon, MD, PhD^ ^2 ^1Department of Ophthalmology, Konkuk University M...
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    10. Morphologic Changes in Acute Central Serous Chorioretinopathy Using Spectral Domain Optical Coherence Tomography

      Morphologic Changes in Acute Central Serous Chorioretinopathy Using Spectral Domain Optical Coherence Tomography
      ...Konkuk University Medical Center, Konkuk University School of Medicine, Seoul, Korea. ^ Corresponding Author: Hyung Chan Kim, MD, PhD. Department of Ophthalmology, Konkuk University Medical Center, Konkuk University Scho...
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    11. Evaluation of Changes in Choroidal Neovascularization Secondary to Age-related Macular Degeneration after Anti-VEGF Therapy Using Spectral Domain Optical Coherence Tomography

      Evaluation of Changes in Choroidal Neovascularization Secondary to Age-related Macular Degeneration after Anti-VEGF Therapy Using Spectral Domain Optical Coherence Tomography
      Purpose: To evaluate the changes in choroidal neovascularization (CNV) after anti-VEGF therapy for treatment of age-related macular degeneration (AMD) using spectral domain optical coherence tomography (SD OCT). Materials and Methods: This retrospective study included 65 eyes of 65 patients with CNV secondary to AMD. All patients underwent SD OCT before and 4 weeks after three intravitreal injections of bevacizumab (bevacizumab group) or ranibizumab (ranibizumab group). The diameter and thickness of ...
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    12. Correlation of Fundus Autofluorescence with Spectral Domain Optical Coherence Tomography and Vision in Diabetic Macular Edema

      Correlation of Fundus Autofluorescence with Spectral Domain Optical Coherence Tomography and Vision in Diabetic Macular Edema
      ... Hyun Jin Shin, MD, * Hyung Chan Kim, MD, PhD Affiliations + Corresponding Author Information Correspondence: Hyung Chan Kim, MD, PhD, Department of Ophthalmology, Konkuk University Medical Center, Konkuk University Scho...
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    13. Correlation of Microperimetry with Fundus Autofluorescence and Spectral-Domain Optical Coherence Tomography in Repaired Macular Holes

      Correlation of Microperimetry with Fundus Autofluorescence and Spectral-Domain Optical Coherence Tomography in Repaired Macular Holes
      Purpose: To investigate the correlation of microperimetry with fundus autofluorescence (FAF), spectral-domain optical coherence tomography (SD-OCT), and visual acuity (VA) in order to better characterize visual outcomes after successful macular hole (MH) surgery.Design: Cross-sectional case series.Methods: Postoperative VA, microperimetry, FAF, and SD-OCT images from 23 eyes of 23 patients who underwent successful MH surgery were obtained. FAF images were examined using the Heidelberg retina angiograph 2, and foveal ...
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  2. About Hyung Chan Kim

    Hyung Chan Kim is with the Department of Ophthalmology, Konkuk University Medical Center, Konkuk University School of Medicine, Seoul, Korea.