Results 71 to 80 of about 1,906,714 (310)

Defects in disposable contact lenses can compromise ocular integrity

open access: yes, 1992
To ascertain the prevalence of defects in disposable contact lenses, an Optimec JFC contact lens analyser (×16 magnification) was used to examine 150 Acuvue, 150 NewVues, and 150 SeeQuence lenses, all -3.00D in power.
Efron, Nathan, Veys, Jane
core   +1 more source

Generating Unconventional Spin‐Orbit Torques With Patterned Phase Gradients in Tungsten Thin Films

open access: yesAdvanced Materials, EarlyView.
ABSTRACT A key aim in spintronics is to achieve current‐induced magnetization switching via spin‐orbit torques without external magnetic fields. For this, the focus of recent work has been on introducing controlled lateral gradients across ferromagnet/heavy‐metal devices, giving variations in thickness, composition, or interface quality.
Lauren J. Riddiford   +9 more
wiley   +1 more source

Prevention and treatment of corneal injury in people wearing soft contact lenses

open access: yesМедицинский совет, 2014
Contact lenses are a widely used alternative to glasses. However, wearing contact lenses, especially in violation of directions for use, often results in corneal injury.
O. I. Maksimova   +2 more
doaj   +1 more source

Manual of gas permeable contact lenses /

open access: yes, 2004
Includes index.Previous edition: Rigid gas-permeable contact lenses."Previous edition copyrighted 1986"--Title page verso.References at end of each chapter.Introduction -- Corneal physiological response and consequences of hypoxia / Adrian S.
Bennett, Edward S., Hom, Milton M.
core  

Soft contact lenses and corneal topography

open access: yes, 1993
We investigated the effect of 3 months of daily soft contact lenswear on corneal\ud topography. Thirty young myopic subjects who had not previously worn contact\ud lenses were fitted with hydroxyethyl methacrylate (HEMA) soft lenses.
Bruce, Adrian S., Collins, Michael J.
core   +1 more source

Surface hydration of hydrogel contact lenses [PDF]

open access: yes, 1986
A hand refractometer was used to measure the surface hydration of soft contact lenses of three different water contents, in a randomized, double masked study conducted on nine subjects.
Efron, Nathan   +7 more
core   +1 more source

Descriptors to Dynamics: A Materials and Device Perspective on in‐Materio Physical Reservoir Computing for Neuromorphic Edge Intelligence

open access: yesAdvanced Materials, EarlyView.
Intrinsic material dynamics are harnessed as computational resources for neuromorphic in‐materio physical reservoir computing. Defects, ionic motion, interfaces, percolation, geometry, and biasing shape transient states that provide fading memory, nonlinearity, and high‐dimensional projection for simple readout. A descriptor‐to‐dynamics framework links
Kshitij RB Singh   +5 more
wiley   +1 more source

Understanding Capsular Contraction and IOL Decentration in Toric and EDOF Lenses: Clinical and Biomechanical Insights

open access: yesClinical Ophthalmology
Bharat Gurnani,1 Kirandeep Kaur2 1Department of Cataract, Cornea and Refractive Surgery, Gomabai Netralaya and Research Centre, Neemuch, Madhya Pradesh, 458441, India; 2Department of Cataract, Pediatric Ophthalmology and Strabismus, Gomabai Netralaya and
Gurnani B, Kaur K
doaj  

Effects of short-term wear of silicone hydrogel contact lenses on refractive behaviour

open access: yesAfrican Vision and Eye Health, 2012
Contact lens wear is known to induce change in both the cornea and refractive state. Often a shift towards increased myopia is noted. Historically investigations into the effects of contact lenses onrefractive state have often been incomplete in terms of
W. D. H. Gillan
doaj   +1 more source

Prescribing daily disposable contact lenses in the UK

open access: yes, 2008
Patterns of prescribing daily disposable contact lenses in the UK were determined by mining through data gathered from annual contact lens fitting surveys conducted over the past 12 years.
Morgan, Philip B., Efron, Nathan
core   +1 more source

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