Article
Ophthalmology
Rei Sakata, Takeshi Yoshitomi, Makoto Araie
Summary: The study showed that in otherwise healthy Japanese normal-tension glaucoma patients who received no treatment, the probability of disc haemorrhage occurrence was 31% at 5 years. Risk factors included lower myopic refraction, higher intraocular pressure during follow-up, and presence of disc haemorrhage at baseline.
ACTA OPHTHALMOLOGICA
(2021)
Article
Ophthalmology
Yeon Ju Lim, Jong Wook Bang, Robert N. Weinreb, Linda M. Zangwill, Min Hee Suh
Summary: The clinical characteristics of focal temporal optic disc microvasculature dropout (MvD-D) in primary open-angle glaucoma (POAG) patients were assessed. It was found that focal temporal MvD-D was associated with longer axial length and subsequent morphological changes of the optic disc and parapapillary area.
INVESTIGATIVE OPHTHALMOLOGY & VISUAL SCIENCE
(2023)
Article
Mathematics
Jose E. Valdez-Rodriguez, Edgardo M. Felipe-Riveron, Hiram Calvo
Summary: Early detection and treatment of glaucoma are crucial to prevent vision loss. A CNN-based methodology focusing on the extraction of optic disc information from retinal images achieved high accuracy in glaucoma diagnosis. Further exploration with different RGB channels and depth information did not significantly improve classification performance.
Article
Ophthalmology
Hosni Al Zoubi, Thomas Riemer, Rowena Simon, Walthard Vilser, Somar Hasan, Daniel Meller, Regine Augsten, Martin Hammer
Summary: The study investigated the haemoglobin concentration and oxygenation in the optic disc of glaucoma patients compared to healthy controls. The results showed that haemoglobin concentration was significantly lower in the optic disc of glaucoma patients, particularly in the rim and the excavation. Oxygenation levels were not significantly different, except in glaucoma patients with ischaemic disc rims. Flicker light stimulation increased haemoglobin concentration in both controls and glaucoma discs, and increased oxygenation only in controls. The study also found a significant correlation between haemoglobin concentration and various clinical measures of glaucoma severity.
GRAEFES ARCHIVE FOR CLINICAL AND EXPERIMENTAL OPHTHALMOLOGY
(2022)
Review
Biochemistry & Molecular Biology
Berta Sanz-Morello, Hamid Ahmadi, Rupali Vohra, Sarkis Saruhanian, Kristine Karla Freude, Steffen Hamann, Miriam Kolko
Summary: Evidence suggests that changes in the redox system may contribute to various optic neuropathies, characterized by neurodegeneration of innermost retinal neurons and their axons. Optic neuropathies are often asymptomatic until advanced stages, necessitating further investigation of oxidative stress biomarkers and optimization of study design for more valuable and comparable results. Developing therapeutic strategies targeting the redox system is essential to prevent vision loss in optic neuropathies.
Article
Medicine, General & Internal
Jingyuan Yang, Yi Qu, Jianchun Zhao, Jingwu Cong, Zixi Sun, Yunfeng Du, Gang Yang, Dayong Ding, Youxin Chen, Gangwei Cheng
Summary: In the evaluation of optic disc photographs for morphologic features and glaucoma likelihood, the stereoscopic method showed superiority compared to the monoscopic method for general ophthalmologists. The stereoscopic method is more likely to identify glaucomatous eyes which need medical intervention.
FRONTIERS IN MEDICINE
(2022)
Article
Computer Science, Artificial Intelligence
Yuhao Zhang, Xiangrui Cai, Ying Zhang, Hong Kang, Xin Ji, Xiaojie Yuan
Summary: Glaucoma is the leading cause of blindness globally, and automated detection methods are crucial for intervention and damage reduction. However, due to variations in image capture among different fundus cameras, pretrained models suffer performance degradation on other datasets, and the high cost of manual annotations limits practicality.
KNOWLEDGE-BASED SYSTEMS
(2021)
Article
Ophthalmology
Eun Jung Lee, Jong Chul Han, Changwon Kee
Summary: This study examined the morphology of the deep optic nerve head in tilted disc syndrome (TDS) and identified factors associated with retinal nerve fiber layer (RNFL) defects. The results showed that a higher baseline IOP, a larger tilt axis, a larger BMO-lamina cribrosa insertion angle, and more lamina cribrosa defects were associated with the presence of RNFL defects in TDS. These findings suggest a mechanism of RNFL defect associated with structural ONH deformation.
INVESTIGATIVE OPHTHALMOLOGY & VISUAL SCIENCE
(2023)
Article
Computer Science, Information Systems
Lingling Fang, Lirong Zhang
Summary: Glaucoma, a chronic eye disease that is difficult to diagnose early, can be aided through the proposed machine learning-based biregional contour evolution model for segmenting the optic disc and the optic cup to assist in glaucoma screening.
MULTIMEDIA TOOLS AND APPLICATIONS
(2022)
Article
Mathematics
Zhijie Liu, Yuanqiong Chen, Xiaohua Xiang, Zhan Li, Bolin Liao, Jianfeng Li
Summary: This study proposes a lightweight segmentation algorithm, GlauNet, based on convolutional neural networks, for accurate segmentation of the optic disc and optic cup in the diagnosis of glaucoma. The algorithm achieves high segmentation efficiency and accuracy through an efficient feature-extraction network and a multiscale boundary fusion module.
Article
Computer Science, Artificial Intelligence
Samiksha Pachade, Prasanna Porwal, Manesh Kokare, Luca Giancardo, Fabrice Meriaudeau
Summary: This paper presents a novel segmentation network called NENet, which combines deep learning frameworks with specific network structures to achieve superior performance and generalizability in optic disc and cup segmentation for glaucoma. Experimental results demonstrate that NENet outperforms current state-of-the-art methods in accuracy and detail segmentation.
MEDICAL IMAGE ANALYSIS
(2021)
Article
Engineering, Biomedical
Akshat Tulsani, Preetham Kumar, Sumaiya Pathan
Summary: This paper presents a novel approach for the identification of glaucoma using a segmentation based approach on the optic disc and optic cup, achieving improved accuracy for image classification and segmentation through tuning hyper parameters and using a custom loss function. The model demonstrates state-of-art results for Intersection over Union (IOU) scores and enhances training time efficiency.
BIOCYBERNETICS AND BIOMEDICAL ENGINEERING
(2021)
Article
Engineering, Biomedical
Ling Luo, Dingyu Xue, Feng Pan, Xinglong Feng
Summary: This study proposes a novel segmentation architecture, BGA-Net, which achieves state-of-the-art OD and OC segmentation performance on three publicly available datasets, highlighting the importance of calculated values in glaucoma assessment.
INTERNATIONAL JOURNAL OF COMPUTER ASSISTED RADIOLOGY AND SURGERY
(2021)
Article
Medicine, General & Internal
Minha Kim, Euntak Hong, Eun Ji Lee
Summary: This study aimed to investigate the relationship between optic disc morphology and paracentral scotoma in myopic eyes with open-angle glaucoma (OAG). 211 myopic eyes with OAG were divided into three groups based on the location of visual field (VF) defects. Optic disc morphology was assessed using the tilt ratio and eccentricity of the central retinal vessel trunk (CRVT). The results showed that eyes with paracentral scotoma had a higher tilt ratio compared to the other groups. Factors such as nasal location of CRVT, longer axial length, and lower VF mean deviation were found to be significantly associated with higher tilt ratio and the occurrence of paracentral scotoma.
JOURNAL OF CLINICAL MEDICINE
(2023)
Article
Computer Science, Information Systems
Partha Sarathi Mangipudi, Hari Mohan Pandey, Ankur Choudhary
Summary: Glaucoma, a disease causing permanent vision loss, can be prevented through early detection. Optic disc to cup ratio is crucial for diagnosis, and accurate segmentation remains a challenge. An effective system using deep learning architecture shows promising performance on standard datasets, with high average overlapping scores.
MULTIMEDIA TOOLS AND APPLICATIONS
(2021)
Article
Ophthalmology
Eun Ji Lee, Tae-Woo Kim, Ji-Ah Kim, Jeong-Ah Kim
Article
Multidisciplinary Sciences
Seung Hyen Lee, Tae-Woo Kim, Eun Ji Lee, Michael J. A. Girard, Jean Martial Mari, Robert Ritch
SCIENTIFIC REPORTS
(2018)
Article
Oncology
Tae Wan Kim, Euncheol Choi, Jeonghoon Park, Dong-ho Shin, Su Kyung Jung, Susie Seok, Kwan Ho Cho, Joo-Young Kim, Dae Yong Kim, Tae Hyun Kim, Yang Kwon Suh, Yeon Joo Kim, Sung Ho Moon
CANCER RESEARCH AND TREATMENT
(2018)
Article
Multidisciplinary Sciences
Ji-Ah Kim, Eun Ji Lee, Hyunjoong Kim, Tae-Woo Kim
SCIENTIFIC REPORTS
(2018)
Article
Ophthalmology
Ji-Ah Kim, Tae-Woo Kim, Eun Ji Lee, Michael J. A. Girard, Jean Martial Mari
Article
Multidisciplinary Sciences
Seung Hyen Lee, Tae-Woo Kim, Eun Ji Lee, Michael J. A. Girard, Jean Martial Mari
SCIENTIFIC REPORTS
(2019)
Article
Ophthalmology
Gyu-Nam Kim, Eun Ji Lee, Tae-Woo Kim
ACTA OPHTHALMOLOGICA
(2020)
Article
Ophthalmology
Eun Ji Lee, Ji-Ah Kim, Tae-Woo Kim, Hyunjoong Kim, Hee Kyung Yang, Jeong-Min Hwang
Article
Ophthalmology
Ji-Ah Kim, Eun Ji Lee, Tae-Woo Kim
Summary: This study aimed to investigate the influence of peripapillary retinoschisis (PRS) on visual field (VF) test results in patients with primary open angle glaucoma (POAG). The results showed that PRS had no short-term effect on VF sensitivity, and VF testing can still be used for evaluating glaucomatous damage.
BRITISH JOURNAL OF OPHTHALMOLOGY
(2023)
Article
Orthopedics
Hyung Jun Park, Moon Jong Chang, Tae Woo Kim, Chong Bum Chang, Seung-Baik Kang
Summary: The study aimed to determine the recovery of orthopedic surgery volumes over time during the ongoing COVID-19 pandemic. The impact of COVID-19 on orthopedic surgery volumes weakened as the pandemic continued. While the total volumes of orthopedic surgery decreased by 8.5%-10.1% in the first wave, they recovered to a 2.2%-2.8% decrease from the expected volumes during the second and third waves. The resumption of surgery differed based on the surgical characteristics, with open reduction and internal fixation and cruciate ligament reconstruction decreasing, while total knee arthroplasty showed recovery. Hemiarthroplasty of the hip did not see a decrease throughout the year.
CLINICS IN ORTHOPEDIC SURGERY
(2023)
Article
Ophthalmology
Jeong-Ah Kim, Dong Hwan Son, Eun Ji Lee, Hyunjoong Kim, Tae-Woo Kim
Summary: The characteristics of the peripapillary choroid (PPC) were compared between the eyes of patients with unilateral treatment-naive normal-tension glaucoma (NTG). Eyes with NTG showed higher intraocular pressure, thinner PPC, larger area and maximum radial width of beta-zone parapapillary atrophy (PPA), and more frequent microvasculature dropout (MvD) compared to contralateral healthy eyes. Factors such as higher IOP, thinner PPC, larger maximum radial width of beta-zone PPA, and the presence of MvD were independently associated with the risk of NTG.
OPHTHALMOLOGY GLAUCOMA
(2021)
Article
Ophthalmology
Eun Ji Lee, Ji-Ah Kim, Tae-Woo Kim
OPHTHALMOLOGY GLAUCOMA
(2020)
Article
Medicine, General & Internal
Sang Jun Park, Kyu Hyung Park, Tae Woo Kim, Byung Joo Park
JOURNAL OF KOREAN MEDICAL SCIENCE
(2019)
Article
Ophthalmology
Ji-Ah Kim, Tae-Woo Kim, Eun Ji Lee, Michael J. A. Girard, Jean Martial Mari
INVESTIGATIVE OPHTHALMOLOGY & VISUAL SCIENCE
(2018)
Article
Ophthalmology
Seung Hyen Lee, Eun Ji Lee, Tae-Woo Kim
BRITISH JOURNAL OF OPHTHALMOLOGY
(2018)