Publications by authors named "Hee Yoon Cho"
Purpose: To evaluate endothelial damage after cataract surgery in eyes affected by an angle-closure attack (ACA) and compare it to that in the unaffected fellow eyes (FEs) of patients with ACA and normal eyes (NEs).
Methods: The medical data of eyes affected by ACA, FEs (with no history of acute glaucoma attack), and NEs of patients who underwent cataract surgery with simultaneous intraocular lens implantation were retrospectively reviewed. Endothelial cell density (ECD) and central corneal thickness (CCT) measured before surgery and at 1 week, 1 month, and 3 months after surgery were analyzed, and the percentages of loss in ECD and increase in CCT of the three groups were compared.
Bilateral acute myopia and angle closure glaucoma induced by Ma-huang (Ephedra): A case report.
Medicine (Baltimore)
December 2017
Rationale: Cases of bilateral acute angle closure have been reported after use of various drugs.
Patient Concerns: A 52-year-old woman visited the emergency room and complained of acute bilateral ocular pain and decreased vision accompanied by headache, nausea, and vomiting. One day before, she had started a herbal medicine containing Ma-huang for weight loss.
Purpose: To investigate the relationship between topical glaucoma medications and meibomian gland dysfunction (MGD) in early middle-aged patients with glaucoma.
Methods: In this cross-sectional study, 50 patients with glaucoma younger than 50 years who had used topical glaucoma medications for more than 6 months and 40 normal controls of similar age were included. Patients in each group were graded for MGD (0-4) using slit-lamp microscopy.
Purpose: This study was conducted to investigate the depressive symptoms and quality of life (QOL) in patients with age-related macular degeneration (AMD) using data obtained from the Korea National Health and Nutritional Examination Survey V-2 (KNHANES V-2) conducted in 2011.
Methods: This was a population-based, cross-sectional study that selected 329 participants from the fifth KNHANES (2011) who were diagnosed with AMD by an ophthalmologist based on fundus photography. The prevalence of depressive symptoms and the health-related QOL (using EuroQol indices) in this cohort were also estimated.
Purpose: To describe a method to overcome the nonavailability of a long needle 9-0 polypropylene suture for sutured scleral fixation of the posterior chamber intraocular lens (PC-IOL) using a single fisherman's knot (SFK).
Methods: First, a 10-0 polypropylene suture was passed from the sclera to the ciliary sulcus using a long needle. A 9-0 suture was tied to the unpassed portion of the 10-0 suture with an SFK.
Purpose: To investigate the effect of optic disc center displacement on retinal nerve fiber layer (RNFL) measurement determined by spectral domain optical coherence tomography (SD-OCT).
Methods: The optic disc center was manipulated at 1-pixel intervals in horizontal, vertical, and diagonal directions. According to the manipulated optic disc center location, the RNFL thickness data were resampled: (1) at a 3.
Purpose: To evaluate the effect of pattern scan laser (PASCAL) photocoagulation on peripapillary retinal nerve fiber layer (RNFL) thickness, central macular thickness (CMT), and optic nerve morphology in patients with diabetic retinopathy.
Methods: Subjects included 35 eyes for the PASCAL group and 49 eyes for a control group. Peripapillary RNFL thickness, cup-disc area ratio and CMT were measured before PASCAL photocoagulation and at 2 and 6 months after PASCAL photocoagulation in the PASCAL or control groups.
Purpose: To report a novel method for measuring the degree of inferior oblique muscle overaction and to investigate the correlation with other factors.
Design: Cross-sectional diagnostic study.
Methods: One hundred and forty-two eyes (120 patients) were enrolled in this study.
Purpose: To evaluate the diagnostic accuracy of Topcon 3D spectral-domain optical coherence tomography (SD-OCT) for measuring the macular inner retinal layers and the circumpapillary retinal nerve fiber layer (cpRNFL) in order to detect preperimetric glaucoma.
Methods: Two hundred four eyes, including 64 healthy eyes, 68 eyes with preperimetric glaucoma, and 72 eyes with early glaucoma were analyzed. Patients had a comprehensive ocular examination including visual field testing and SD-OCT imaging (3D OCT-2000; Topcon Corporation, Tokyo, Japan) in the macular and peripapillary regions.
Purpose: To measure the maximum angle of ocular versions using photographs of the 9 cardinal positions and a modified limbus test.
Design: An evaluation of diagnostic technology; a prospective observational study.
Participants: We enrolled 104 healthy subjects, 20 to 40 years of age.
Purpose: To identify the clinical features, treatment outcomes, and prognostic factors of endogenous endophthalmitis in multiple tertiary referral centers of South Korea over a 6-year period.
Methods: The authors conducted a retrospective review of medical records of 57 eyes of 43 patients diagnosed with endogenous endophthalmitis from January 2005 to December 2011, which was referred to tertiary referral centers.
Results: Fifty-seven cases of 43 patients were followed for a mean of 18.
Background: To obtain a de novo map of outer photoreceptor layer (OPRL) thickness using a semiautomatic segmentation method for commercial spectral-domain optical coherence tomography (SD-OCT) and analyze the features of the resulting OPRL map in normal eyes and eyes with various inactive macular diseases.
Methods: Forty normal eyes and 50 eyes with various inactive macular diseases such as resolved central serous chorioretinopathy (20 eyes), surgically-repaired macular hole (10 eyes), epiretinal membrane (10 eyes), and reattached rhegmatogenous retinal detachment (10 eyes) were screened. All subjects underwent a 12 radial scan protocol in SD-OCT.
Purpose: To evaluate the healing course of conjunctival wounds in eyes undergoing 23-gauge sutureless vitrectomy and to determine when the potential for ocular surface fluid contamination is no longer a serious concern.
Methods: Prospective observational case series. Thirty-four eyes from 34 patients that underwent transconjunctival 23-gauge sutureless vitrectomies were included.
Purpose: To analyze the incidence of and risk factors for newly developed or increased macular hemorrhage after intravitreal ranibizumab injection (IVR) for neovascular age-related macular degeneration (AMD).
Methods: We performed a retrospective chart review of 220 subjects (220 eyes) from 5 hospitals who received IVRs for neovascular AMD between 1 June 2009 and 30 June 2010. Systemic conditions (age, sex, presence of diabetes, hypertension, cardiovascular disease, smoking, and use of anticoagulation agent) and presence of hemorrhage at the initial exam were evaluated.
Depression of Late Age-Related Macular Degeneration Patients in Korea.
Asia Pac J Ophthalmol (Phila)
June 2015
Purpose: The aim of study was to investigate the relationship between depression and age-related macular degeneration (AMD) in Korea treated with intravitreal ranibizumab.
Methods: This was a cross-sectional study. This study included 107 patients diagnosed with AMD treated with intravitreal ranibizumab.
Purpose: To report the three-year outcomes of macular laser photocoagulation following intravitreal injection of triamcinolone acetonide (IVTA) for diffuse diabetic macular edema (DME).
Methods: A prospective, randomized controlled study was completed. Eighty-six eyes of 74 patients with diffuse DME were randomized into two groups.
Aims: The involvement of cytokines in the aqueous humour is important in the development and progression of diabetic macular oedema (DMO) and macular oedema (MO) due to branch retinal vein occlusion (BRVO-MO). In this study, the concentrations of cytokines in the aqueous humour of eyes with DMO and BRVO-MO were measured and compared.
Methods: Prospective, observational case series.
Purpose: To study choroidal thickness and its topographic profile in normal eyes using 3D OCT-1000 spectral domain optical coherence tomography and the correlation with age and refractive error.
Methods: Fifty-seven eyes (45 individuals) with no visual complaints or ocular disease underwent horizontal and vertical line scanning using 3D OCT-1000. The definition of choroidal thickness was the vertical distance between the posterior edge of the hyper-reflective retinal pigment epithelium and the choroid/sclera junction.
Severe vaso-occlusive retinopathy is a relatively rare form of retinopathy in systemic lupus erythematosus (SLE). We report two patients with severe vaso-occlusive retinopathy in SLE who were treated with intravitreal bevacizumab (IVB). (Patient 1) A 35-year-old woman presented with left visual loss and was diagnosed with SLE after systemic evaluation.
View Article and Find Full Text PDFPurpose: To characterize retinal changes in areas of commotio retinae using spectral-domain optical coherence tomography.
Methods: In this retrospective observational case series, we included 14 eyes of 14 patients who had experienced blunt ocular trauma and underwent spectral-domain optical coherence tomography and fundus photography evaluation on the same day. The retinal thickness and volume of eyes with commotio retinae were compared with those of eyes without it.
Purpose: To assess the diagnostic efficacy of macular and peripapillary retinal thickness measurements for the staging of diabetic retinopathy (DR) and the prediction of disease progression.
Methods: In this prospective study, 149 diabetic patients (149 eyes) and 50 non-diabetic control subjects were included. Baseline optical coherence tomography was employed to measure retinal thickness in the macula (horizontal, vertical, and central) and the peripapillary zone (superior, inferior, nasal, and concentric to the optic disc).