Purpose: To determine the relationship between dry eye disease (DED) and depressive symptoms in a nationally representative sample of Korean women. Methods: This population-based cross-sectional study comprised 6655 women (aged 19 years or older) participating fifth annual Korea National Health Nutrition Examination Survey from 2010 to 2011. Psychological problems associated with clinically diagnosed DED by ophthalmologists were assessed using questionnaires surveys. Data analyzed logistic...

Abstract Severe corneal injuries often result in permanent vision loss and remain a clinical challenge. Human bone marrow-derived mesenchymal stem cells (MSCs) their secreted factors (secretome) have been studied for antiscarring, anti-inflammatory, antiangiogeneic properties. We aimed to deliver lyophilized MSC secretome (MSC-S) within viscoelastic gel composed of hyaluronic acid (HA) chondroitin sulfate (CS) as way enhance re-epithelialization reduce complications after mechanical chemical...

Abstract Recent studies suggested that an association exists between vision loss and cognitive impairment, although it is still vague whether there are causal relationships or direct low dementia. We were to investigate the dementia in Korean population using National Health Insurance Service (NHIS) database. analyzed data of 6,029,657 subjects aged ≥40 years, drawn from Korea Service. The hazard ratio (HRs) 95% confidence interval (CIs) dementia, Alzheimer’s disease (AD), Vascular (VD)...

It is shown that for two open quantum dots connected by a wire, ``bound states in the continuum'' of single electron are formed at nearly periodic distances between dots. This due to Fabry-P\'erot interference quasibound each dot. The bound nonlocal, describing trapped both same time. Theoretical and numerical results show exist even if wire connecting relatively long.

We obtain the energy band spectra, eigenfunctions, and quantum Poincar\'e sections of a free particle moving in two-dimensional channel bounded by periodically varying (ripple) wall flat wall. Classical show generic transition from regular to chaotic motion as size ripple is increased. The structure obtained for two representative geometries corresponding wide narrow channel. comparison numerical results with level-splitting predictions low-order degenerate perturbation theory elucidate some...

The dynamics of a swarm quantum trajectories is investigated for systems involving the interaction an active mode (the subsystem) with M-mode harmonic reservoir bath). Equations motion position, velocity, and action function elements probability fluid are integrated in Lagrangian (moving fluid) picture hydrodynamics. These coupled through Bohm potential as result evolve correlated ensemble. Wave synthesis along permits exact description evolving fluid. approach fully mechanical does not...

Objective To investigate the potential risk factors associated with nuclear, cortical, posterior subcapsular, and anterior polar cataracts (APC) in Korean population. Research Design Methods This was a population-based, cross-sectional study of 7992 adults (over 40 years age) from data fourth annual Korea National Health Nutrition Examination Survey, performed 2007 to 2009. The presence lens opacity examined by slit-lamp biomicroscopy evaluated according LOCS II standard photographs. subtype...

The aim of this study was to investigate the association central and abdominal obesity with prevalence cataracts in a middle-aged Korean population. This retrospective cross-sectional based on data collected from Korea National Health Nutrition Examination Survey 2008–2009, which 4,914 subjects were examined. Ophthalmological examinations performed determine presence nuclear, cortical, or posterior subcapsular cataract. Both general (a body mass index ≥25 kg/m2) waist circumference ≥90 cm...

Abstract Background To evaluate the prevalence of blepharoptosis among Korean adults and characteristics patients, to determine an appropriate age threshold for recommending evaluation. Methods The National Health Nutrition Examination Survey (KNHANES-V) was conducted in 2010–2012. We extracted data on 17,878 aged more than equal 19 years included KNHANES-V, determined according age, cutoff also possible association between obesity parameters, such as body mass index (BMI) waist...

Abstract The impact of underweight on the risk developing primary open-angle glaucoma (POAG) is not known, although association between obesity and POAG has been well studied. We evaluated among patients by studying a nationwide cohort sample in South Korea. analyzed data from Korean National Health Insurance Research Database collected 2009 2012 for 17,000,636 aged 40 years or older. Newly diagnosed was identified using claims 2015. A total 442,829 individuals (2.60%) were classified as...

This study examined the association between pterygium and obesity status by examining a nationally representative sample of South Korean adults. population-based, cross-sectional comprised 16,234 adults (aged ≥19 years) who had participated in fifth annual Korea National Health Nutrition Examination Survey from 2010 to 2012. The enrolled subjects underwent interviews, clinical examinations, laboratory investigations. We compared body mass index (BMI) waist circumference (WC), according...

We study the classical dynamics of bound state and scattering trajectories chlorine atom interacting with HO molecule using a two-dimensional model in which bond length is held fixed. The system forms HOCl at low energies predominantly integrable. Below dissociation number bifurcations are observed, most notably series saddle-center related to 2:1 higher 3:1 resonance between bend stretch motions. At above phase space becomes dominated by homoclinic tangle induces fractal distribution...

We show the influence of stable and unstable periodic orbits on energy eigenstates HOCl molecule, both below above dissociation. The range considered is low enough to hold HO bond fixed, allowing a two-dimensional model molecule. Above dissociation orbits, in chaotic sea, anchor quasibound states Quasibound are calculated using reaction matrix theory found have lifetimes ranging over five orders magnitude.

We study the exact dynamics underlying stimulated Raman adiabatic passage (STIRAP) for a particle in multilevel anharmonic system (the infinite square well) driven by two sequential laser pulses, each with constant carrier frequency. In phase space regions where pulses create chaos, can be transferred coherently into energy states different from those predicted traditional STIRAP. It appears that transition to chaos provide an additional tool control outcome of

We have analyzed the dynamics underlying use of sequential radiation pulses to control isomerization between HCN and CNH molecules. The appearance avoided crossings among Floquet eigenphases as molecule interacts with is key understanding dynamics, both in adiabatic nonadiabatic regimes. find that small detunings incident can a significant effect on outcome process for model we consider.

Abstract Retinal vessels share similar anatomical and physiological characteristics with the cerebral microvasculature, abnormal blood flow is reportedly associated depressive disorder. However, there limited evidence regarding relationship between depression risk of retinal vein occlusion (RVO). This study aimed to investigate association prospective RVO using nationally representative longitudinal data. retrospective, nationwide, population-based cohort included 9,178,222 people aged 20...

The hydrodynamic formulation of quantum mechanics is used to analyze the mechanism decoherence for a system interacting with bath in which initial wavefunction superposition spatially separated components. In order study decoherence, various time-evolving fields are monitored two composite systems, each having single mode. one these, and uncoupled, but other they coupled through an interaction term. For uncoupled system, large interference feature develops between components superposition....

The exact dynamics of the rotational degrees freedom diatomic molecules, in presence sequentially applied radiation pulses, is studied. pulses induce chaos phase space. In adiabatic limit, this induced found to cause a transition high angular momentum states due avoided crossings among Floquet states. effect finite temperature on distribution transitions also discussed.

We have studied the classical and quantum dynamics of Morse system driven by time-periodic external field. Floquet energies Husimi probability distributions quasibound states are obtained using exterior complex scaling method theory. As we increase field strength, number is decreased distribution state shows enhanced positive momentum that appears to be supported homoclinic tangles develop on side phase space.

The quasibound states of a particle in an inverted-Gaussian potential interacting with intense laser field are studied using complex coordinate scaling and Floquet theory. dynamics the driven system is different depending on whether driving frequency less than or greater ionization frequency. As strength increased, new state emerges as result pitchfork bifurcation classical phase space. Changes time-averaged ``dressed potential'' appear related to this provide additional confirmation role...

The dynamics of the ${{\text{O}}_{2}}^{\ensuremath{-}}$ ion in a constant electric field is modeled terms complex spectral decomposition energy Green's function for this open system. survival probability excess electron presence and photodetachment rate radiation are computed.