Microvasculature recovery in lamina cribrosa and peripapillary sclera after glaucoma surgery and its impact on visual field progression.

This study investigates vessel density (VD) changes in the lamina cribrosa (LC) and peripapillary sclera (PPS) after glaucoma surgery and their association with visual field (VF) progression. Primary open-angle glaucoma patients undergoing surgery for uncontrolled intraocular pressure (IOP) at Seoul St. Mary's Hospital were included.

Impact of Myopia on the Utility of the Photopic Negative Response Ratio for Glaucoma Assessment.

: The objective assessment of visual function is crucial in glaucoma management, highlighting the importance of electroretinography (ERG). This study investigates the diagnostic performance of photopic negative response (PhNR) amplitude and the normalized PhNR/b-wave ratio in diagnosing glaucoma, focusing on the impact of myopia. : Ninety-one glaucoma patients and 19 glaucoma suspects were included, defining myopia as axial length (AL) > 24 mm or > 25 mm.

Nationwide cohort study of primary open angle glaucoma risk and cardiovascular factors among in Korean glaucoma suspects.

This retrospective study investigated the risk of primary open-angle glaucoma (POAG) among individuals identified as glaucoma suspects and examined associated cardiovascular risk factors. We conducted a longitudinal, nationwide cohort study using data from the Korean National Health Insurance Service (KNHIS) and included 362,285 participants aged ≥ 40 years from the Korean National Health Screening Program (NHSP) without pre-existing POAG in 2009 and 2010. Of these, glaucoma suspects (n = 32,220) were defined as individuals with at least two recorded instances of the KCD code H400 for glaucoma suspect and no prior antiglaucoma medication prescriptions before health screening.

Risk of depression in glaucoma patients with vision impairment: A nationwide cohort study.

Purpose: We aimed to investigate the risk of developing depression in individuals with primary open-angle glaucoma with associated vision impairment.

Methods: We conducted a nationwide, population-based cohort study using data from the Korean National Health Information Database and National Disability Registry. We assessed baseline characteristics such as age, sex, income level, lifestyle factors, anthropometric data, lab results, and Charlson Comorbidity Index scores through diagnostic codes and health screening data.

Discriminating Diseases Mimicking Normal-Tension Glaucoma (NTG) from NTG.

The aim of this study was to identify the most reliable ocular exam and establish a threshold for deciding whether to perform neuroimaging in order to screen for diverse diseases other than normal-tension glaucoma (NTG). A retrospective, observational, comparative study was used. In total, 106 individuals with atypical features of NTG who underwent glaucoma assessments and contrast-enhanced MRI of the brain or orbit were included.

Exploring Neuroprotective Effects of Topical Brimonidine in Experimental Diabetic Retinopathy.

Background/aim: Diabetic retinopathy is a leading cause of blindness worldwide, characterized by neurovascular dysfunction. This study aimed to investigate the impact of brimonidine, a selective adrenoceptor agonist, on diabetic retinal neurodegeneration, recognizing the critical role of neurodegeneration in diabetic retinopathy.

Materials And Methods: Streptozotocin-induced diabetes was established in adult male Sprague-Dawley rats to mimic diabetic retinopathy.

Effect of Bromfenac on Reducing Neuroinflammation in an Ischemia-Reperfusion Glaucoma Model.

In the context of glaucoma, intraocular pressure (IOP) and age are recognized as the primary factors contributing to its onset and progression. However, significant reductions in IOP fail to completely halt its advancement. An emerging body of literature highlights the role of neuroinflammation in glaucoma.

Parallel Analysis of Exosomes and Cytokines in Aqueous Humor Samples to Evaluate Biomarkers for Glaucoma.

Recent emerging studies have demonstrated numerous critical roles of exosomes in cell-to-cell signaling. We investigated exosomes in the aqueous humor of glaucoma patients and controls and compared their characteristics with other biomarkers such as cytokines. Glaucoma patients exhibited higher exosome particle counts and smaller sizes compared to controls.

Associations of long-term fluctuation in blood pressure and ocular perfusion pressure with visual field progression in normal-tension glaucoma.

Backgroud: The aim of this study was to investigate the associations between fluctuation in blood pressure (BP), ocular perfusion pressure (OPP) and visual field (VF) progression in normal-tension glaucoma (NTG).

Methods: This prospective, longitudinal study included 44 patients with NTG. Only newly diagnosed NTG patients who had not been treated with a glaucoma medication were included.

Thicker Inner Nuclear Layer as a Predictor of Glaucoma Progression and the Impact of Intraocular Pressure Fluctuation.

: Thickening of the inner nuclear layer (INL) or microcystic macular changes has been reported to be implicated in glaucoma patients, but their potential impact on disease progression remains unclear. We investigated the relationship between baseline microcystic macular edema in the INL or INL thickness and subsequent visual field (VF) progression in glaucoma patients. : This retrospective observational study included primary open-angle glaucoma with follow-up exceeding 3 years.

Retinal Neurodegeneration in an Intraocular Pressure Fluctuation Rat Model.

Increased intraocular pressure (IOP) is the most important risk factor for glaucoma. The role of IOP fluctuation, independently from elevated IOP, has not yet been confirmed in glaucoma. We investigated the effects of IOP fluctuation itself on retinal neurodegeneration.

Clinical Significance of Recurrent Disc Hemorrhage and Choroidal Microvasculature Dropout on Optical Coherence Tomography Angiography in Glaucoma.

Purpose: The purpose of this study was to investigate the clinical significance of recurrent disc hemorrhage (DH) and choroidal microvasculature dropout (MvD).

Methods: A retrospective cohort study was conducted of 181 eyes with open-angle glaucoma. The clinical characteristics of patients with nonrecurrent and recurrent DH with and without MvD were investigated.

Long-Term Intraocular Pressure Fluctuation and Epiretinal Membrane in Patients with Glaucoma or Glaucoma Suspect.

: A relationship between glaucoma and epiretinal membrane (ERM) has been suggested previously. We investigated the association between intraocular pressure (IOP) fluctuation and idiopathic ERM in patients with glaucoma or glaucoma suspect. : Among patients with glaucoma or glaucoma suspect, data from 43 patients with ERM and 41 patients without ERM were reviewed and analyzed in this retrospective study.

Characteristic Differences between Normotensive and Hypertensive Pseudoexfoliative Glaucoma.

Purpose: To compare the differences between eyes with pseudoexfoliative glaucoma (PXG) when they are divided into two groups (hypertensive PXG and normotensive PXG) according to the intraocular pressure (IOP).

Methods: This is a retrospective study. Data from 86 hypertensive PXG eyes and 80 normotensive PXG eyes were included.

Factors Contributing to the Development of Choroidal Microvasculature Dropout in Glaucoma Suspects and Patients with Glaucoma.

We aimed to characterize and compare the occurrence of peripapillary microvasculature dropout (MvD) between glaucoma suspects and patients with glaucoma. In addition, the factors related to the development of parapapillary MvD in glaucoma suspects and patients with glaucoma were investigated. Of a total 150 eyes, 68 eyes of glaucoma suspects and 82 eyes of glaucoma patients were analyzed in this study.

Clinical Characteristics and Associated Factors to the Development of Glaucoma in Eyes With Myopic Optic Neuropathy.

Purpose: To observe the development of glaucoma in myopic eyes with and without myopic optic neuropathy (MON) and analyze associated factors to the development of typical glaucomatous damage.

Design: A prospective, observational, cohort study.

Methods: A total of 233 myopic eyes with no definite evidence of glaucomatous damage were included.

Effect of a Pericardium Graft Inserted Adjacent to the Endplate in the Ahmed Glaucoma Valve Implantation.

The surface area of encapsulation around the Ahmed glaucoma valve (AGV) endplate is a critical factor in the surgical outcome as it is associated with the degree of IOP reduction. We investigated the surgical outcome of AGV implantation with an additional pericardium graft inserted adjacent to the endplate, with the intent of expanding the surface area of encapsulation. We enrolled 92 patients (92 eyes) who underwent AGV implantation.

Importance of Pattern Standard Deviation of Humphrey 10-2 Visual Field to Evaluate Central Visual Function in Patients with Early-Stage Glaucoma.

To explore various parameters that can evaluate the central visual impairment in patients with early-stage glaucoma, we included patients into a study with central visual impairments with an MD value greater than -6.0 dB on the 24-2 VF test. A possible association between structural parameters acquired by OCT and functional parameters of VF and PERG was determined.

Factors Associated with Vascular Changes at the Level of Retinal Ganglion Cell Axon versus Soma/Dendrite in Glaucoma Patients.

Superficial and deep macular vessel density (VD) is decreased in eyes with glaucoma. Superficial VD comprises both the retinal nerve fiber layer (RNFL) and ganglion cell/inner plexiform layer (GC/IPL), and various terms have been used previously to describe the layers of macular VD. In our study, we readjusted the macular segmentation.

Deviated Saccadic Trajectory as a Biometric Signature of Glaucoma.

Purpose: To investigate whether the trajectories of saccadic eye movements (SEMs) significantly differ between glaucoma patients and controls.

Methods: SEMs were recorded by video-based infrared oculography in 53 patients with glaucoma and 41 age-matched controls. Participants were asked to bilaterally view 24°-horizontal, 14°-vertical, and 20°-diagonal eccentric Goldmann III-sized stimuli.

Fluctuation of Intraocular Pressure and Vascular Factors Are Associated With the Development of Epiretinal Membrane in Glaucoma.

Purpose: To identify factors associated with the development of epiretinal membranes (ERM) in glaucoma patients.

Design: Multicenter, propensity-score matched, case-control study.

Methods: One hundred ninety-two eyes of 192 patients with glaucoma from the Catholic Medical Center Glaucoma Suspect Cohort Study were analyzed.

Factors Affecting Visual Acuity and Central Visual Function in Glaucoma Patients With Myopia.

Purpose: To investigate associated factors including structural parameters of myopia and vessel density (VD) using optical coherence tomography angiography (OCT-A) to visual acuity (VA) and central visual function in glaucoma patients with myopia.

Design: Retrospective cross-sectional study.

Methods: Sixty-five eyes of 60 glaucoma patients with myopia and without media opacity and retinal lesions were included.

Angiotensin II-Related Activation of Scleral Fibroblasts and Their Role on Retinal Ganglion Cell Death in Glaucoma.

We identify the angiotensin II (AngII)-associated changes in the extracellular matrix (ECM) and the biomechanical properties of the sclera after systemic hypotension. Systemic hypotension was induced by administering oral hydrochlorothiazide. AngII receptor levels and ECM components in the sclera and biomechanical properties were evaluated based on the stress-strain relationship after systemic hypotension.

Normotensive Glaucoma in the Fellow Eye of Patient with Unilateral Pseudoexfoliation.

Purpose: To investigate the characteristics of normotensive glaucoma (NTG) in the fellow eye of patients with unilateral pseudoexfoliation syndrome (PXS).

Methods: This study is a retrospective chart review. We included 313 patients with NTG.