PubMed Journals Articles About "Global Ophthalmic Lens Market Spectacle Contact Type Usage" RSS

19:08 EST 22nd November 2017 | BioPortfolio

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Showing "Global Ophthalmic Lens Market Spectacle Contact Type Usage" PubMed Articles 1–25 of 20,000+

Spectacle Glasses - an Overview.

This paper will give some support to choose the right spectacle lens. The question "what is the proper spectacle lens" cannot be answered exactly, the answer depends on many parameters. Depending on the visual task, the right spectacle lens is a compromise between lens properties. These properties are pointed out in the paper.

The eyelids and tear film in contact lens discomfort.

To investigate characteristics of the eyelid margins, meibomian glands and the tear film of contact lens wearers, and to determine whether these characteristics were related to symptoms of contact lens discomfort.

Adhesion of Stenotrophomonas maltophilia, Delftia acidovorans, and Achromobacter xylosoxidans to Contact Lenses.

Contact lens cases become contaminated with microbes during use. We wished to compare the adhesion of uncommon bacterial contaminants isolated from lens cases to contact lenses with and without organic soil.

Theoretical fitting characteristics of typical soft contact lens designs.

To calculate theoretical fitting success rates (SR) for a range of typical soft contact lens (SCL) designs using a mathematical model.

Evaluated Conjunctival Blood Flow Velocity in Daily Contact Lens Wearers.

This study examined conjunctival microvasculature development in long-term habitual contact lens (HCL) wearers after a night of sleep.

Smart Reinvention of the Contact Lens with Graphene.

With potential benefits to the 71 million contact lens users worldwide, contact lenses are being reinvented in the form of smart wearable electronics. In this issue of ACS Nano, Lee et al. report on the fascinating functions of a graphene-based smart contact lens that is able to protect eyes from electromagnetic waves and dehydration. Graphene and two-dimensional materials can be exploited in many opportunities in the development of smart contact lenses. Here, we briefly review and describe prospects for th...

Effects of Contact Lens Wear on Biometry Measurements for Intraocular Lens Calculations.

To determine the effects of contact lens (CL) wear on biometry measurements for cataract surgery and whether a CL hiatus can reduce the prediction error of intraocular lens (IOL) calculations.

Mechanical Properties of Contact Lens Materials.

To evaluate the mechanical properties of commonly available soft contact lens materials and compare results using custom-built MicroTensometer.

Contact Lens Compliance With Ophthalmologists and Other Health Professionals.

To assess the compliance with contact lens (CL) use among ophthalmologists and other health professionals, and to identify the main noncompliant behaviors.

Tear film evaluation and management in soft contact lens wear: a systematic approach.

The human tear film is a highly ordered structure consisting of a thin layer of lipid on the surface and a thicker aqueous-mucin phase, which increases in mucin concentration toward the corneal epithelial cell layer. The health of the tear film and ocular surface influences the likelihood of being able to achieve successful contact lens wear. Contact lens discomfort and dryness are the most frequent reasons why contact lens wearers experience reduced wearing times, which can eventually lead to contact lens ...

Retention Rates in New Contact Lens Wearers.

To determine the retention rate (RR) for neophyte patients fitted with contact lenses (CLs) and to identify factors associated with retention and dropout.

Risk Behaviors for Contact Lens-Related Eye Infections Among Adults and Adolescents - United States, 2016.

Contact lens-related eye infections, which can lead to serious outcomes, including blindness, are associated with several risk factors, including sleeping in lenses, exposing lenses to water, not adhering to replacement schedules, and reusing disinfecting solution (1). In some studies, adolescent and young adult contact lens wearers have been reported to be more likely than older adult contact lens wearers to develop eye infections (2,3) and more likely to have poor contact lens hygiene practices (2). In 20...

Efficacy of Toric Contact Lenses in Fitting and Patient-Reported Outcomes in Contact Lens Wearers.

To assess whether patient-reported measures are improved with soft toric contact lenses (TCLs) compared with soft spherical contact lenses (SCLs) and whether clinical time needed to fit TCL is greater than SCL.

Evaluation of the Effect of Moist Chamber Spectacles in Patients With Dry Eye Exposed to Adverse Environment Conditions.

To evaluate the effect of moist chamber spectacle wear on the ocular surface and tear functions in a controlled wind exposure environment.

Case Series Analysis of Myopic Progression Control With a Unique Extended Depth of Focus Multifocal Contact Lens.

To determine the rate of myopia progression in children fit with a commercially available extended depth of focus (center distance) multifocal soft contact lens with attributes theoretically expected to slow the progression of myopia.

Critical Contact Lens Oxygen Transmissibility and Tear Lens Oxygen Tension to Preclude Corneal Neovascularization.

The purpose of this study is to determine the peripheral oxygen transmissibility (pDk/t) and respective central oxygen transmissibility (cDk/t) in soft contact lenses (SCLs) which might preclude SCL-driven corneal neovascularization (NV) in healthy myopic SCL users.

The Effect of Spectacle Lenses Containing Peripheral Defocus on Refractive Error and Horizontal Eye Shape in the Guinea Pig.

It has been proposed that the peripheral retina, responding to local optical defocus, contributes to myopia and associated altered eye growth in humans. To test this hypothesis, we measured the changes in central (on-axis) and peripheral ocular dimensions in guinea pigs wearing a concentric bifocal spectacle lens design with power restricted to the periphery.

Depth Profile Assessment of the Early Phase Deposition of Lysozyme on Soft Contact Lens Materials Using a Novel In Vitro Eye Model.

To characterize the location of fluorescently labeled lysozyme on commercial contact lenses (CLs) using an in vitro eye model that simulates tear volume, tear flow, air exposure, and mechanical wear.

Management of Reverse Pellucid Type Topography.

Evaluation of the etiopathogenesis and management of topographic reverse pellucid pattern after rigid intraocular lens (IOL) implantation with wide limbal clear corneal incision (CCI).

Water Exposure is a Common Risk Behavior Among Soft and Gas-Permeable Contact Lens Wearers.

To understand soft contact lens (SCL) and gas-permeable (GP) lens wearers' behaviors and knowledge regarding exposure of lenses to water.

Myopia progression control lens reverses induced myopia in chicks.

To determine whether lens induced myopia in chicks can be reversed or reduced by wearing myopia progression control lenses of the same nominal (central) power but different peripheral designs.

The Impact of Scleral Contact Lens Vault on Visual Acuity and Comfort.

To assess how varying degrees of corneal clearance of scleral contact lenses (ScCL) impact visual acuity (VA) and comfort in patients with corneal ectasia.

Effects of Lens-Care Solutions on Hydrogel Lens Performance.

Lens care multipurpose solutions (MPSs) can have varying effects on contact lens (CL) surface properties and the corneal epithelium.

Fungal Keratitis Associated With Airborne Organic Debris and Soft Contacts Lenses: Case Reports and Review of the Literature.

To report two cases of fungal keratitis in soft contact lens wearers who were exposed to environmental mold.

Wide-field fundus imaging with trans-palpebral illumination.

In conventional fundus imaging devices, transpupillary illumination is used for illuminating the inside of the eye. In this method, the illumination light is directed into the posterior segment of the eye through the cornea and passes the pupillary area. As a result of sharing the pupillary area for the illumination beam and observation path, pupil dilation is typically necessary for wide-angle fundus examination, and the field of view is inherently limited. An alternative approach is to deliver light from ...

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