Prcis: The visualization of circle of Zinn-Haller (CZH) on optical coherence tomography angiography (OCTA) or its pattern does not have a clear effect on glaucoma, while the location of CZH is associated with axial length in highly myopic eyes.
Purpose: To investigate the association between the CZH and the presence of glaucoma using swept-source optical coherence tomography angiography (SS-OCTA) images of the optic nerve of patients with high myopia (HM).
Methods: This retrospective case series included 227 eyes with HM, comprising 134 and 93 eyes with and without glaucoma, respectively.
Purpose: To investigate the risk of visual impairment (VI) based on the presence or absence of four diseases: hypertension (HTN), diabetes mellitus (DM), glaucoma, and diabetic retinopathy (DR).
Methods: This retrospective population-based study included 1,000,000 randomly selected participants from the National Health Checkup Program database between 2015 and 2016. VI was defined as a presenting visual acuity ≤ 0.
Purpose: Investigating long-term trends in glaucoma medication.
Methods: All patients diagnosed with glaucoma and prescribed glaucoma eye drops between 2007 and 2020 in Korea's Health Insurance Review and Assessment Service database participated in this study. A weight was assigned to each prescription using the reciprocal of the total number of prescriptions received by the individual in that year.
This study aimed to compare morphological differences of the neuroretinal rim between the temporally tilted and non-tilted optic discs in healthy eyes. We prospectively enrolled participants aged 20-40 years with temporally tilted or non-tilted optic discs. The optic nerve head parameters were analyzed using spectral domain-optical coherence tomography.
View Article and Find Full Text PDFDiagnosing and monitoring glaucoma in high myopic (HM) eyes are becoming very important; however, it is challenging to diagnose this condition. This study aimed to evaluate the diagnostic ability of wide-field optical coherence tomography angiography (WF-OCTA) maps for the detection of glaucomatous damage in eyes with HM and to compare the diagnostic ability of WF-OCTA maps with that of conventional imaging approaches, including swept-source optical coherence tomography (SS-OCT) wide-field maps. In this retrospective observational study, a total 62 HM-healthy eyes and 140 HM eyes with open-angle glaucoma were included.
View Article and Find Full Text PDFBackground: Contemporary data on vision impairment form an important basis for public health policies. However, most data on the clinical epidemiology of blindness are limited by small sample sizes and focused not on systemic conditions but ophthalmic diseases only. In this study, we examined the ten-year trends of blindness prevalence and its correlation with systemic health status in Korean adults.
View Article and Find Full Text PDFThis study aimed to compare the optic nerve head (ONH) structure in acute angle-closure glaucoma (AACG) and open-angle glaucoma (OAG) to investigate the differences in glaucomatous damage. The AACG and OAG eyes were matched with regard to global retinal nerve fiber layer thickness (RNFLT). AACG eyes were divided into two subgroups based on the presence of ONH swelling at the onset of AACG.
View Article and Find Full Text PDFThis study aimed to compare the rate of thinning between retinal nerve fiber layer thickness (RNFLT) and Bruch's membrane opening minimum rim width (BMO-MRW) in open-angle glaucoma (OAG) according to glaucoma severity. We retrospectively reviewed subjects with a total of 111 eyes with OAG that had undergone optical coherence tomography more than four times during more than 3 years of follow-up. The subjects were divided into three groups based on the mean deviation (MD) of the baseline visual field test: high MD (MD > - 2 dB), medium MD (- 2 dB ≥ MD > - 6 dB), and low MD (- 6 dB ≥ MD > - 12 dB) groups.
View Article and Find Full Text PDFImportance: Acute angle-closure (AAC) glaucoma is a sight-threatening disease and can reportedly occur in association with various drugs.
Objective: To identify drugs that are associated with AAC glaucoma occurrence and evaluate the risk of AAC associated with each drug.
Design, Setting, And Participants: A case-crossover study was conducted using the Health Insurance Review and Assessment Service database, which contains medical information of the entire Korean population.
The present study aimed to evaluate the diagnostic ability of wide-field optical coherence tomography angiography (OCTA) density map for detection of glaucomatous damage in high myopic (HM) eyes and to further compare the diagnostic ability of OCTA with that of conventional imaging approaches including red-free photography and swept-source OCT (SS-OCT) wide-field maps. A total of 77 healthy HM eyes and 72 HM eyes with open angle glaucoma (OAG) participated in this retrospective observational study. Patients underwent a comprehensive ocular examination, including wide-field SS-OCT scan and peripapillary area and macular OCTA scans.
View Article and Find Full Text PDFPrcis: A decrease in Bruch's membrane opening-minimum rim area, which represents the optic nerve head (ONH), preceded a decrease in the peripapillary retinal nerve fiber layer thickness (RNFLT) and the visual field index (VFI).
Purpose: This study aimed to investigate the relative comparison between a decrease in BMO-MRA, the peripapillary RNFLT, and the VFI, according to the severity of glaucoma.
Materials And Methods: This retrospective cross-sectional study included 121 eyes (73 with open-angle glaucoma and 48 normal eyes).
Graefes Arch Clin Exp Ophthalmol
January 2022
Purpose: The purpose of this study was to assess the diagnostic ability of the new area-based parameter retinal nerve fiber layer to disc ratio (RDR) for discriminating between glaucoma and non-glaucomatous retinal nerve fiber layer defects (RNFLDs).
Methods: This retrospective cross-sectional study included 42 branch retinal vein occlusion (BRVO) eyes with RNFLD, 42 open-angle glaucoma (OAG) eyes, and 42 healthy control eyes that were matched with optic disc size. The RDR, peripapillary retinal nerve fiber layer thickness (pRNFLT), Bruch's membrane opening-minimum rim width (BMO-MRW), and Bruch's membrane opening-minimum rim area (BMO-MRA) were analyzed.
Unlabelled: PRéCIS:: We generated a new visual field (VF) cluster map corresponding to Bruch membrane opening-minimum rim area (BMO-MRA) sectors, which described in detail the structure-function relationships between the optic nerve head and VF in patients with open-angle glaucoma.
Purpose: The purpose of this study was to investigate the structure-function relationship between BMO-MRA and VF in patients with open-angle glaucoma.
Materials And Methods: We retrospectively reviewed 67 eyes of 50 patients with open-angle glaucoma who underwent spectral-domain optical coherence tomography for BMO-MRA and the Humphrey VF test.
Korean J Ophthalmol
August 2019
Purpose: To investigate the location of retinal nerve fiber layer defects (RNFLDs) in open-angle glaucoma and the differences in systemic and ocular factors between superotemporal and inferotemporal RNFLDs.
Methods: We performed a retrospective review of the 2008 to 2012 data from the Korea National Health and Nutrition Examination Survey. Subjects aged ≥19 years with an evaluable fundus photograph of at least one eye were enrolled, and open-angle glaucoma was diagnosed according to modified International Society of Geographical and Epidemiological Ophthalmology criteria.
Unlabelled: PRéCIS:: Bleb needle revision with and without 5-FU showed similar success rates over the course of a long-term follow-up. A greater total number of needle revisions was identified as a risk factor for procedural failure.
Purpose: The purpose of the study was to investigate the efficacy and safety of bleb needle revision with adjunctive 5-fluorouracil (5-FU) subconjunctival injection in large-scaled patients with failing trabeculectomy bleb.
Purpose: The purpose of this study was to compare the incidence of open-angle glaucoma (OAG) in patients with newly diagnosed retinal vein occlusion (RVO) with that in the general population in order to determine the association between OAG and RVO.
Methods: The Korean Health Insurance Review and Assessment (HIRA) data from 2011 through 2015 was analyzed in order to determine the incidence rates of OAG in the general population and in patients with newly diagnosed RVO based on the diagnostic code. The standardized incidence ratios (SIRs) of OAG in patients with RVO were determined with respect to the age- and sex-matched general population.
Purpose: To evaluate the clinical efficacy of a novel screening sign [ie, the triple hump (TH) sign] for prediction of laser peripheral iridotomy (LPI)'s intraocular pressure (IOP)-lowering effectiveness in subjects with asymptomatic narrow angles.
Methods: This cross-sectional study was conducted from 2010 to 2015 in a hospital setting. Eighty-four eyes of 84 primary angle-closure suspect (PACS) patients were imaged before LPI using anterior segment optical coherence tomography.
Purpose: To evaluate patterns of glaucomatous structural progression using the combined retinal nerve fiber layer (RNFL) and ganglion cell-inner plexiform layer (GCIPL) event-based progression analysis feature provided by spectral-domain optical coherence tomography (SD-OCT)'s - (GPA) software.
Design: Retrospective observational case series.
Methods: Seventy-nine (79) patients were identified with open-angle glaucoma (OAG) showing clinically confirmed structural progression within a minimum 3-year follow-up period.
Importance: We determined the association between retinal vein occlusion (RVO) and open-angle glaucoma (OAG) in a Korean population by reviewing a dataset obtained from the Korean Health Insurance Review and Assessment (HIRA).
Background: To compare the RVO incidence for OAG patients with that for the general population in order to determine the association between RVO and OAG.
Design: Nationwide population-based retrospective study.
Invest Ophthalmol Vis Sci
December 2017
Purpose: The purpose of this study was to investigate the role of optic disc torsion on the rate of progressive retinal nerve fiber layer (RNFL) thinning in patients with myopic open-angle glaucoma.
Methods: We included 102 patients with myopic open-angle glaucoma accompanied by glaucomatous damage confined to a single hemiretina who were followed up over a 5-year period. We divided the subjects into three groups according to the presence or absence of optic disc torsion and the correspondence between the direction of optic disc torsion and the location of glaucomatous damage: torsion with reverse correspondence group (eyes showing inferior optic disc torsion with glaucomatous damage in the superior quadrant or eyes showing superior torsion with damage in the inferior quadrant), no torsion group, and torsion with correspondence group (eyes showing inferior optic disc torsion with glaucomatous damage in the inferior quadrant or eyes showing superior torsion with damage in the superior quadrant).
Purpose: To determine the relationship between open-angle glaucoma (OAG) and stroke in the Korean population.
Materials And Methods: This study was a population-based, cross-sectional study that used data from the Korea National Health and Nutrition Examination Survey (KNHANES), a complex, stratified, multistage, probability-cluster survey. We analyzed a total of 11,959 participants who were above 40 years old and were included in the fifth KNHANES database (2010 to 2012 data).
Purpose: To investigate the prevalence and associated factors of retinal nerve fiber layer defects (RNFLDs) in a Korean population.
Methods: The Korea National Health and Nutrition Examination Survey (KNHANES) is a population-based study using a complex, stratified, multistage, probability-cluster survey. We performed a review of 2008-2012 data from the KNHANES.
Purpose: The purpose of this study is to investigate the influence of the Valsalva maneuver (VM) on anterior lamina cribrosa surface depth (ALCSD), and to compare normal with treated glaucomatous eyes in terms of this effect.
Methods: Thirty-two patients (32 eyes) with early-to-moderate glaucoma under treatment and 30 normal healthy participants (30 eyes) were prospectively enrolled. Study subjects performed the VM by blowing through a mouthpiece attached to a handheld manometer; expiratory pressure during the maneuver ranged from 35 to 40 mm Hg.