PubMed Journals Articles About "Clinical Evaluation Of Two Daily Disposable Lenses In Neophytes" RSS

00:31 EDT 26th March 2019 | BioPortfolio

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Showing "Clinical Evaluation Daily Disposable Lenses Neophytes" PubMed Articles 1–25 of 38,000+

Eye care professionals' perceptions of the benefits of daily disposable silicone hydrogel contact lenses.

To gain a better understanding of eye care professionals' (ECPs) perceptions regarding the benefits of silicone hydrogel (SiH) daily disposable contact lenses (DDCL), particularly with respect to health, comfort and patient satisfaction.

In vitro and in vivo performance of epinastine hydrochloride-releasing contact lenses.

A number of drug-releasing contact lenses are currently being studied to address issues inherent in eye drops as a drug delivery method. In this study, we developed epinastine hydrochloride-releasing daily soft contact lenses for treatment of allergic conjunctivitis and examined their in vitro and in vivo performance. Preformed soft contact lenses with/without ionic functional groups were soaked in a solution of epinastine hydrochloride in phosphate-buffered saline to prepare epinastine hydrochloride-releas...

An Operable, Portable, and Disposable Ultrathin Endoscope for Evaluation of the Upper Gastrointestinal Tract.

A prototype of a disposable endoscope (DE) with easy viewing of the esophagus has been developed. The aim of this study was to develop a new version of DE with improved functionality and to assess the feasibility of DE as a screening tool for upper gastrointestinal diseases compared with conventional endoscopes.

Modern High-Tech Contact Lenses 2018 - More than Correction of Refractive Error.

In the last decades contact lenses have conquered a first place in curing refraction errors as well as treatment option in the medical field especially for corneal diseases. The reason is the advanced technology in cutting design variations. Each type of refraction error can be solved. Complications post Lasik as secondary ectasia are managed by contact lenses as well as keratoconus eyes. There is a new-build strong teamwork with surgery. New and more common today are special designed lenses for presbyopia ...

Contact Lenses in the Management of Corneal Dystrophies.

Among the group of diseases comprising corneal dystrophies, there are a number for which contact lenses may be considered. For example, soft contact lenses may be beneficial in the management of recurrent corneal erosions and advanced bullous keratopathy and may lead to disease attenuation in some conditions. They also may be used in conjunction with surgical procedures to promote tissue healing and patient comfort in the postoperative period. Rigid contact lenses may be beneficial in the setting of irregul...

Development of a remote purification apparatus with disposable evaporator for the routine production of high-quality Cu for clinical use.

We developed a new apparatus for the routine production of Cu in clinical use. The apparatus has many disposable parts that stabilize the product quality (such that there is a low deviation of the concentrations of impurity metals in the product) and reduce the work load of preparation for routine production. We also developed a new evaporator using near-infrared heaters for disposable use. We conducted a production test using the new apparatus and evaluated product quality. The product yield was 6.3 ±...

Bed Bath with Soap and Water or Disposable Wet Wipes: Patients' Experiences and Preferences.

To gain an in-depth understanding of patients' preferences regarding two bed bath methods: soap and water and disposable wet wipes.

Zoomable telescope by rotation of toroidal lenses.

A novel type of a continuously zoomable telescope is based on two pairs of adjacent toroidal lenses ("saddle lenses") in combination with standard optical components. Its variable magnification is adjusted by a mere rotation of the four saddle lenses around the optical axis. This avoids the necessity of classical zoom systems to shift multiple lenses along the longitudinal axis of the setup. A rotationally tunable pair of saddle lenses consists of two individual saddle lenses (also known as quadrupole lense...

The absence of SIRT3 and SIRT5 promotes the acetylation of lens proteins and improves the chaperone activity of α-crystallin in mouse lenses.

Acetylation of lysine residues occurs in lens proteins. Previous studies have shown an improvement in the chaperone activity of αA-crystallin upon acetylation. Sirtuins are NAD-dependent enzymes that can deacylate proteins. The roles of sirtuins in regulating the acetylation of lens proteins and their impacts on the function of α-crystallin are not known. Here, we detected sirtuin activity in mouse lenses, and SIRT3 and SIRT5 were present primarily in the mitochondria of cultured primary mouse lens epithe...

Contact interaction of two oil lenses floating on surface of deionized water.

Droplets on the surface of liquid play an important role in a variety of areas, including the petroleum industry, pollution control and environmental processes. In this work, we study the contact interaction between two floating oil lenses on the surface of immiscible water. The contact interaction between the two floating oil lenses can be divided into three different regimes; (a) the collision involving deformation for low-viscous oils, (b) the direct coalescence for high-viscous oils, and (c) the coexist...

Microbiological Evaluation of Bandage Soft Contact Lenses Used in Management of Persistent Corneal Epithelial Defects.

To investigate the rate and agents of contamination in bandage soft contact lenses fitted for management of persistent corneal epithelial defects.

Clinical Evaluation of Different Delivery Methods of At-Home Bleaching Gels Composed of 10% Hydrogen Peroxide.

This study aimed to compare the tooth sensitivity, gingival irritation, and bleaching efficacy of at-home whitening performed with 10% hydrogen peroxide (HP) using a conventional tray-delivered system or two different bleaching systems (strips or prefilled disposable trays).

Coexistence and sudden entrapment between two dissimilar-miscible oil lenses.

The property of substrate is one of the important factors determining the interaction between two lenses (droplets). There likely exists different interaction between two dissimilar oil lenses (droplets) floating on the surface of a liquid phase from the interaction between two dissimilar oil droplets on rigid substrate, e.g. coalescence or coexistence. The interaction between two dissimilar oil lenses (droplets) is dependent on the intrinsic properties of both oil lenses (droplets) and external environment...

Imaging with two skew ideal lenses.

In lens systems, the constituent lenses usually share a common optical axis, or at least a common optical-axis direction, and such combinations of lenses are well understood. However, in recent proposals for lens-based transformation-optics devices [Opt. Express26, 17872 (2018)OPEXFF1094-408710.1364/OE.26.017872], the lenses do not share an optical-axis direction. To facilitate the understanding of such lens systems, we describe here combinations of two ideal lenses in any arbitrary arrangement as a single ...

Boston Type I Keratoprosthesis: Antibacterial Resistance and Microbiota Evaluation of Soft Contact Lenses.

Clinical Efficacy of Pinhole Soft Contact Lenses for the Correction of Presbyopia.

We investigated the clinical efficacy of pinhole soft contact lenses for presbyopia correction. Twenty participants with presbyopia wore pinhole soft contact lenses in the non-dominant eye for 2 weeks. Manifest refraction, Goldmann binocular visual field tests, contrast sensitivity tests, and biomicroscopic examinations were performed along with evaluations of questionnaire responses and the binocular corrected distance visual acuity (CDVA), distance-corrected near visual acuity (DCNVA), distance-corrected...

Surgical plane positioning with a disposable circumcision suture device for the treatment of phimosis and redundant prepuce.

To investigate the clinical effects of circumcision by surgical plane positioning with a disposable circumcision suture device in the treatment of phimosis and redundant prepuce.

Pre-clinical Evaluation of Intraocular Lenses through Simulated Implantation.

The development of new optical designs for intraocular lenses (IOL) is a major challenge for lens manufacturers, as postoperative patient satisfaction is difficult to assess a priori with new concepts. Until now, invasive clinical investigations were carried out for this purpose. In contrast, the simulated implantation of IOLs allows a risk-free determination of the achievable visual performance and a subjective evaluation of the visual impression of new optical concepts. For intraocular lens manufacturers,...

Differences in perceptions of e-cigarettes across daily and non-daily users.

E-cigarette use has increased significantly over the past decade. Among the growing population of e-cigarette users, several pattern-based subgroups have emerged, including daily and non-daily users. Daily users are at greater risk for experiencing negative health consequences from use. Yet, little is understood about underlying e-cigarette processes that may be related to daily use relative to non-daily use.

Label-free evaluation of small-molecule-protein interaction using magnetic capture and electrochemical detection.

The evaluation of interaction between small molecules and protein is an important step in the discovery of new drugs and to study complex biological systems. In this work, an alternative method was presented to evaluate small-molecule-protein interaction by using ligand capture by protein-coated magnetic particles (MPs) and disposable electrochemical cells. The interaction study was conducted using [10]-gingerol from ginger rhizome and a transmembrane protein αVβ3 integrin. Initially, the electrochemical ...

Ray-optical transformation optics with ideal thin lenses makes omnidirectional lenses.

We present the theory of ray-optical transformation optics (RTO) with ideal thin lenses and show that ideal-thin-lens RTO devices are omnidirectional lenses. Key to designing such devices are two theorems, the loop-imaging theorem, and the edge-imaging theorem, which ensure that the interior physical space is distorted in the same way for all viewing directions. We discuss the possibility of realising such devices using lens holograms or Fresnel lenses, as both are in principle capable of changing the direc...

Effect of gold nanoparticles on timolol uptake and its release kinetics from contact lenses: In vitro and in vivo evaluation.

Contact lenses are ideally suited for extended drug delivery to the ocular tissues, but incorporation of any particulate system affects the critical properties of the contact lens. Timolol loading by the conventional soaking method does not significantly alter the critical properties of the contact lens. However, there are challenges of low drug loading and high burst release. This research work aimed to investigate the effect of gold nanoparticles (GNPs) on loading and its release kinetics from the contact...

The effect of part-time wear of 2-zone concentric bifocal spectacle lenses on refractive error development & eye growth in young chicks.

The purpose of this study is to characterize in young chicks the myopia control effects of part-time wear of two-zone concentric bifocal lenses. Nine-day-old chicks (n = 115) were first made myopic with monocular -10 Diopter (D) single vision (SV) lenses worn for 3 days. Over the 6 days following myopia induction, either 1) two-zone bifocal lenses (-10 D center/-5 D periphery, BFDC) were worn for 12 (full-time), 10, 8, or 6 h, with -10 D SV lenses worn for the remainder of the day, or 2) BFDC or BFNC ...

A clinical observation evaluation of bioactive soluble beta-glucan gel compared with standard care.

Clinicians across all health-care settings are challenged daily by wounds that are slow or static in healing due to time constraints, reduced resources and the negative impact upon the patient's quality of life (QoL). Community settings are particularly challenging due to the varied environments, patient social, psychological and financial constraints, and multi-clinician wound care monitoring. The aim of this clinical evaluation is to clinically evaluate bioactive soluble beta-glucan gel (BSBG) on those wo...

Determination of the refractive index and Abbe number of glass of spherical lenses.

The paper deals with the problem of determination of basic parameters of unknown spherical lenses, namely their radii of curvature, thicknesses, and refractive indices of materials, for example, optical glasses, from which these lenses are made. Four methods are proposed to obtain these parameters and mathematical relations are derived that allow us to determine the refractive index and Abbe number of lens material based on the measured radius values, the thickness, and the position of the focal point or th...

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