Macular vessel density is associated with cognitive function in preclinical p.R544C NOTCH3 mutation carriers.

Background: The study aimed to examine the relationship between retinal microcirculation, brain white matter hyperintensities (WMH) seen on magnetic resonance imaging (MRI), and cognitive decline in asymptomatic carriers of NOTCH3 mutations, a preclinical stage of cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy.

Methods: Forty-nine asymptomatic carriers without stroke history or cognitive complaints were studied. Retinal vessel density and WMH volume were measured via optical coherence tomography angiography and MRI, respectively.

Association of Dipeptidyl Peptidase-4 Inhibitors with Glaucoma Risk in Patients with Type 2 Diabetes: A Nationwide Cohort Study.

Purpose: To investigate the association between dipeptidyl peptidase-4 inhibitors (DPP4is) and the risk of primary open-angle glaucoma (POAG) and normal tension glaucoma (NTG) in patients with type 2 diabetes mellitus (T2DM).

Design: Retrospective cohort study.

Subjects: A total of 582 710 patients with T2DM treated with either DPP4i (exposure group) or non-DPP4i medications (control group) were analyzed between 2008 and 2021.

Axial length normative data and percentile curves for schoolchildren in Taiwan: A tool for myopia monitoring.

Purpose: The prevention and control of myopia are crucial public health issues. Therefore, this study aimed to construct reference percentile curves of age-specific axial length based on population-based sampling data of Taiwanese children and assess their role in the progression of myopia using a cohort of children undergoing orthokeratology.

Methods: Data from 2997 representative samples of schoolchildren aged 6-18 years from a recent myopia survey in Taiwan between 2016 and 2017 were analysed for axial length distribution.

Strategic Design of Biocompatible, Glistening-Free, and Foldable Artificial Intraocular Lenses Based on Hydro-Amphiphilic Ternary Copolymers.

The increasing prevalence of cataracts underscores the urgent need for intraocular lens (IOL) materials that provide optical clarity, foldability, glistening resistance, and long-term biocompatibility. In this study, we developed hydro-amphiphilic ternary copolymers composed of styrene, hydroxyethyl methacrylate (HEMA), and poly(ethylene glycol) phenyl ether acrylate (PEGPEA) to address these requirements. This rational design integrates the strength and refractive index of hydrophobic styrene with the flexibility and hydrophilicity of HEMA and PEGPEA.

A systematic review and network meta-analysis of surgical interventions for glaucoma following penetrating keratoplasty.

This study aims to compare the effectiveness and safety of surgical interventions for secondary glaucoma following penetrating keratoplasty (PKP) through a network meta-analysis. PubMed, Cochrane Central Register of Controlled Trials, Embase, Web of Science, Scopus, and Google Scholar databases were searched for articles published from inception to July 16, 2024. We included studies that compared the effects of trabeculectomy, glaucoma drainage devices (GDDs), or cyclophotocoagulation (CPC) on graft failure, intraocular pressure (IOP), or the number of glaucoma medications required for patients with post-PKP glaucoma.

Use of SGLT2 Inhibitors Versus DPP-4 Inhibitors and Age-Related Macular Degeneration in Patients WithType 2 Diabetes: A Multinational Cohort Study.

Purpose: To compare the impact of sodium-glucose cotransporter 2 (SGLT2) and dipeptidyl peptidase 4 (DPP-4) inhibitors on age-related macular degeneration (AMD) risk among patients with type 2 diabetes mellitus (T2DM).

Methods: This multinational, retrospective cohort study used electronic medical records from healthcare institutions across 21 countries. Adults 50 years or older with T2DM who had a prior prescription of metformin and initiated SGLT2 or DPP-4 inhibitors from 2013 to 2023 were included.

Risk of Retinal Vein Occlusion between Glucagon-Like Peptide-1 Receptor Agonists and Dipeptidyl Peptidase-4 Inhibitors in Type 2 Diabetes: A Retrospective Cohort Study.

Objective: To evaluate whether glucagon-like peptide-1 receptor agonists (GLP-1RAs) are associated with reduced retinal vein occlusion (RVO) risk compared with dipeptidyl peptidase-4 (DPP-4) inhibitors in patients with type 2 diabetes mellitus (T2DM).

Design: A multinational, retrospective cohort study.

Participants: Adults with T2DM newly prescribed GLP-1RAs or DPP-4 inhibitors between 2006 and 2023 were included in our analysis.

ROCK Inhibitor Enhances Resilience Against Metabolic Stress Through Increasing Bioenergetic Capacity in Corneal Endothelial Cells.

Purpose: To investigate the effect of Rho-associated protein kinase (ROCK) inhibitor Y27632 on bioenergetic capacity and resilience of corneal endothelial cells (CECs) under metabolic stress.

Methods: Bovine CECs (BCECs) were treated with Y27632 and subjected to bioenergetic profiling using the Seahorse XFp Analyzer. The effects on adenosine triphosphate (ATP) production through oxidative phosphorylation and glycolysis were measured.

Vulnerable parafoveal microcirculation quadrant in patients with type 2 diabetes mellitus.

Diabetic retinopathy (DR) is a leading cause of vision loss among adults. This study evaluates Optical Coherence Tomography Angiography (OCTA) vessel density (VD) as a marker for DR in diabetes mellitus (DM) patients. An observational study was conducted with 47 type 2 DM patients and 21 healthy controls.

Association between Semaglutide and Nonarteritic Anterior Ischemic Optic Neuropathy: A Multinational Population-Based Study.

Purpose: To investigate whether semaglutide increases the risk of nonarteritic anterior ischemic optic neuropathy (NAION) in the general population.

Design: This retrospective cohort study used a deidentified global electronic medical records database. The enrollment period was extended from January 2017 to August 2023, with observations concluding in August 2024.

The association between antiglaucomatous agents and Alzheimer's disease.

Objectives: To estimate the risk of Alzheimer's disease (AD) associated with long-term use of topical glaucoma medications among middle-aged and older glaucoma patients, and compare the AD risk among various glaucoma subtypes.

Methods: This nationwide population-based cohort study utilized insurance claims data from Taiwan's National Health Insurance Research Database between 2008 and 2019. Participants were adults aged 45 years or older either with a diagnosis of glaucoma or without.

The impact of light properties on ocular growth and myopia development.

The objective of this article is to comprehensively review the effect of environmental lighting on ocular growth and refractive status in both animal and clinical studies, with an emphasis on the underlying mechanisms. This review was performed by searching research articles and reviews utilizing the terms "myopia," "light therapy," "axial length," "refractive error," and "emmetropization" in PubMed datasets. The review was finalized in December 2023.

The extraction and application of antisymmetric characteristics of the cornea during air-puff perturbations.

Background: A non-contact tonometer is used to measure intraocular pressure, and studies have primarily relied on apex displacements to assess corneal properties. However, previous studies have overlooked the asymmetric characteristics of lateral corneal perturbations, leading to a gap in understanding of the lateral mechanical properties and its application.

Method: To investigate these lateral perturbations, we designed an experiment to sequentially record the corneal profiles when two consecutive air-puffs were applied at the center of the same cornea within a short period.

The versatile roles of lumican in eye diseases: A review.

Lumican is a keratan sulfate proteoglycan that belongs to the small leucine-rich proteoglycan family. Research has lifted the veil on the versatile roles of lumican in the pathogenesis of eye diseases. Lumican has pivotal roles in the maintenance of physiological tissue homogenesis and is often upregulated in pathological conditions, e.

Development and validation of an intuitive biomechanics-based method for intraocular pressure measurement: a modal analysis approach.

Background: Current intraocular pressure (IOP) measurements based on non-contact tonometry are derived from statistics-driven equations and lack biomechanical significance, which often leads to under-estimation in post-refractive surgery cornea. This study aims to introduce and validate modal analysis-derived intraocular pressure (mIOP) as a novel method generated through Legendre-based modal decomposition of the anterior corneal contour; it provides an accurate and intuitive IOP measurement from an energy-based perspective.

Methods: This retrospective study included 680 patients.

Corvis Biomechanical Factor Facilitates the Detection of Primary Angle Closure Glaucoma.

Purpose: To characterize the corneal biomechanical properties of primary angle closure glaucoma (PACG) and to investigate the diagnostic performance of combining corneal biomechanical parameters and anterior segment parameters in detecting PACG.

Methods: This retrospective cross-sectional study evaluated 79 and 81 eyes of normal controls and patients with PACG, respectively. Corvis Biomechanical Factor (CBiF) and anterior chamber volume (ACV) were measured using the Corvis ST and Pentacam, respectively.

Influence of parental behavior on myopigenic behaviors and risk of myopia: analysis of nationwide survey data in children aged 3 to 18 years.

Background: Preventive parental behavior may play an important role in the outcomes of children's myopia. We investigated associations between parental behavior and children's myopia status and daily activities using data from the most recent myopia survey in Taiwan.

Methods: In total, 3845 children aged 3 to 18 years who completely responded to the questionnaire were included (total score ranging from 0 to 75).

Extending the utility of anterior corneal buttons through refrigeration and glycerol cryopreservation: utility rate and outcome analysis.

Background/aims: To evaluate the utility rate, indication, outcome, and cost of refrigeration and glycerol cryopreservation for storing anterior corneal buttons during endothelial keratoplasty for subsequent use in tectonic lamellar patch grafting.

Method: Anterior corneal buttons collected after precutting or prestripping during endothelial keratoplasty from January 2014 to December 2019 were preserved using the following protocol: (1) refrigeration for up to 4 weeks at 4° in Optisol-GS and (2) glycerol cryopreservation for up to 2 years. The utility rate, outcome and cost of these cryopreserved anterior corneal buttons were retrospectively examined.

Correlation between corneal dynamic responses and keratoconus topographic parameters.

Objective: To investigate the correlation between corneal biomechanical properties and topographic parameters using machine learning networks for automatic severity diagnosis and reference benchmark construction.

Methods: This was a retrospective study involving 31 eyes from 31 patients with keratonus. Two clustering approaches were used (i.

Inhibition of Rho-associated protein kinase activity enhances oxidative phosphorylation to support corneal endothelial cell migration.

Corneal endothelial cell (CEC) dysfunction causes corneal edema and severe visual impairment that require transplantation to restore vision. To address the unmet need of organ shortage, descemetorhexis without endothelial keratoplasty has been specifically employed to treat early stage Fuchs endothelial corneal dystrophy, which is pathophysiologically related to oxidative stress and exhibits centrally located corneal guttae. After stripping off central Descemet's membrane, rho-associated protein kinase (ROCK) inhibitor has been found to facilitate CEC migration, an energy-demanding task, thereby achieving wound closure.