Current Contact Lenses News and Events

Current Contact Lenses News and Events, Contact Lenses News Articles.
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New "metalens" shifts focus without tilting or moving
An MIT-fabricated metalens shifts focus without tilting, shifting, or otherwise moving. The design may enable miniature zoom lenses for drones, cellphones, or night-vision goggles. (2021-02-22)

Cloudy eyes caused by protein imbalance
Cataracts are the most common eye ailment in humans. However, the exact processes leading to this condition are not fully understood. A team of researchers headed by the Technical University of Munich (TUM) has now discovered that the composition of the protein solution plays a decisive role. Their conclusions are contrary to prevailing opinion in the field. (2021-02-16)

Move over heavy goggles, here come the ultra-high refractive index lenses
POSTECH professor Junsuk Rho's research team develops a transparent silicon without visible light loss by controlling the silicon atomic structure. (2021-02-14)

Eyes reveal life history of fish
If you look deep into the eyes of a fish, it will tell you its life story. Scientists from the University of California, Davis, demonstrate that they can use stable isotopic analysis of the eye lenses of freshwater fish -- including threatened and endangered salmon -- to reveal a fish's life history and what it ate along the way. (2021-01-28)

A metalens for virtual and augmented reality
Harvard researchers have developed a two-millimeter achromatic metalenses that can focus RGB (red, blue, green) colors without aberrations and developed a miniaturized display for virtual and augmented reality applications. (2021-01-27)

Doubling the number of known gravitational lenses
Data from the DESI (Dark Energy Spectroscopic Instrument) Legacy Imaging Surveys have revealed over 1200 new gravitational lenses, approximately doubling the number of known lenses. Discovered using machine learning trained on real data, these warped and stretched images of distant galaxies provide astronomers with a flood of new targets with which to measure fundamental properties of the Universe such as the Hubble constant, which describes the expanding Universe. (2021-01-13)

Surrey unveils breakthrough manufacturing process of ultra-thin sensor for smart contact lenses
Smart contact lenses could soon become mainstream thanks to a new manufacturing process that has allowed the University of Surrey to develop a multifunctional ultra-thin sensor layer. (2021-01-06)

3D-printed smart gel changes shape when exposed to light
Inspired by the color-changing skin of cuttlefish, octopuses and squids, Rutgers engineers have created a 3D-printed smart gel that changes shape when exposed to light, becomes ''artificial muscle'' and may lead to new military camouflage, soft robotics and flexible displays. The engineers also developed a 3D-printed stretchy material that can reveal colors when light changes, according to their study in the journal ACS Applied Materials & Interfaces. (2021-01-05)

Convex to concave: More metasurface moiré results in wide-range lens
The odd, wavy pattern that results from viewing certain phone or computer screens through polarized glasses has led researchers to take a step toward thinner, lighter-weight lenses. Called moiré, the pattern is made by laying one material with opaque and translucent parts at an angle over another material of similar contrast. (2021-01-04)

Record resolution in X-ray microscopy
Researchers at Friedrich-Alexander Universität Erlangen-Nürnberg (FAU), the Paul Scherrer Institute in Switzerland and other institutions in Paris, Hamburg and Basel, have succeeded in setting a new record in X-ray microscopy. With improved diffractive lenses and more precise sample positioning, they were able to achieve spatial resolution in the single-digit nanometre scale. (2020-12-11)

Largest-ever study on children's soft contact lens safety shows low complication rates
The largest-ever retrospective study of its kind (the ReCSS Study) has found very low complication rates in children who wear soft contact lenses, similar to rates in adults. The newly-published outcomes offer eye care professionals valuable real-world information to better counsel parents and caregivers as they consider proven myopia management options to help slow myopia progression. (2020-12-10)

Researchers confront optics and data-transfer challenges with 3D-printed lens
Researchers have developed new 3D-printed microlenses with adjustable refractive indices - a property that gives them highly specialized light-focusing abilities. This advancement is poised to improve imaging, computing and communications by significantly increasing the data-routing capability of computer chips and other optical systems, the researchers said. (2020-12-03)

Incredible vision in ancient marine creatures drove an evolutionary arms race
Ancient deep sea creatures called radiodonts had incredible vision that likely drove an evolutionary arms race according to new research published today. (2020-12-02)

Contact lenses for diagnostic and therapeutic use
A collaborative team, which includes a group from the Terasaki Institute for Biomedical Innovation, has developed a fabrication method to meet all the challenges in making a hydrogel contact lens for biomarker sensing. The specially engineered contact lenses use tears to monitor patient health. (2020-11-23)

Ultracompact metalens microscopy breaks FOV constraints
As reported in Advanced Photonics, their metalens-integrated imaging device (MIID) exhibits an ultracompact architecture with a working imaging distance in the hundreds of micrometers. Using a simple image-stitching process, they are able to obtain wide-field microscope imaging with large FOV and high resolution. (2020-11-13)

Laser-powered nanomotors chart their own course
The University of Tokyo introduced a system of gold nanorods that acts like a tiny light-driven motor, with its direction of motion is determined by the orientation of the motors. This work may lead to smaller and more precise nanomachines. (2020-11-04)

Solved: the mystery of how dark matter in galaxies is distributed
In a recent article in Astronomy & Astrophysics Letters, scientists at the Instituto de Astrofísica de Canarias (IAC)/University of La Laguna (ULL) and of the National University of the North-West of the Province of Buenos Aires (Junín, Argentina) have shown that the dark matter in galaxies follows a 'maximum entropy' distribution, which sheds light on its nature. (2020-10-28)

Stay focused: Algae-inspired polymers light the way for enhanced night vision
Researchers from the University of Tsukuba processed sulfur, and algae and plant compounds, into an elastic lens that maintains substantial variable focus in infrared imaging. This development will be useful in policing, firefighting, ecology, and many other applications where it's critical to see detail at variable distances in dark environments, such as at night or through smoke. (2020-10-27)

Turning streetwear into solar power plants
Researchers at Empa and ETH Zurich succeeded in developing a material that works like a luminescent solar concentrator and can even be applied to textiles. This opens up numerous possibilities for producing energy directly where it is needed, i.e. in the use of everyday electronics. (2020-10-22)

Scientists replicated self-cleaning anti-reflective coating of insects' eyes
Scientists from Russia and Switzerland have probed into nanostructures covering the corneas of the eyes of small fruit flies. Investigating them the team learned how to produce the safe biodegradable nanocoating with antimicrobial, anti-reflective, and self-cleaning properties in a cost-effective and eco-friendly way. The protection coating might find applications in diverse areas of economics including medicine, nanoelectronics, automotive industry, and textile industry. The article describing these discoveries appears in Nature. (2020-10-13)

Six-Year MiSight contact lens study: 23% of eyes showed no additional myopia progression
The latest findings from the long-running CooperVision MiSight 1 day clinical study provide new insights about myopia management and the proven efficacy of the specially designed contact lens. Nearly one in four children's eyes originally fit with MiSight 1 day remain stable for myopia after six years. (2020-10-09)

Graphene microbubbles make perfect lenses
Jia and fellow researchers from Swinburne University of Technology recently teamed up with researchers from National University of Singapore, Rutgers University, University of Melbourne, and Monash University, to develop a method to generate precisely controlled graphene microbubbles on a glass surface using laser pulses. (2020-10-09)

Microscope lens inspired by lighthouse
Custom-fabricated lenses make it easy to attach high-tech microscopes directly to cell incubators. (2020-10-04)

Engineers produce a fisheye lens that's completely flat
Engineers at MIT and the University of Massachusetts at Lowell have designed a wide-angle lens that is completely flat. It is the first flat fisheye lens to produce crisp, 180-degree panoramic images. (2020-09-18)

Anti-reflective coating inspired by fly eyes
The eyes of the fruit fly are covered by a thin and transparent coating with anti-reflective, anti-adhesive properties. Researchers from the University of Geneva and Lausanne discovered that the coating only consists of two ingredients: retinin and corneal wax. They succeeded in artificially reproducing the phenomenon on different kinds of surface. This process, which is very inexpensive and is based on biodegradable materials, could have numerous applications for contact lenses, medical implants and textiles. (2020-09-16)

More small-scale dark matter gravitational lenses than expected in galaxy clusters
The gravitational pull of cold dark matter in galaxy clusters can distort or bend the light coming from distant background galaxies, in a phenomenon called gravitational lensing. (2020-09-10)

Preventing infection, facilitating healing: New biomaterials from spider silk
New biomaterials developed at the University of Bayreuth eliminate risk of infection and facilitate healing processes. These nanostructured materials are based on spider silk proteins. They prevent colonization by bacteria and fungi, but at the same time proactively assist in the regeneration of human tissue. They are therefore ideal for implants, wound dressings, prostheses, contact lenses, and other everyday aids. (2020-08-28)

A new lens on the world: Improving the metalens with liquid crystal
Case Western Reserve University physics professor Giuseppe Strangi and collaborators at Harvard and the Italian university UniCal have taken a step toward making ''metalenses'' even more useful--by making them reconfigurable. They did this by harnessing nanoscale forces to infiltrate liquid crystals between those microscopic pillars, allowing them to shape and diffract the light in completely new ways--''tuning'' the focusing power, Strangi said. (2020-08-20)

Palaeontology: 429-million-year-old eye provides a view of trilobite life
The internal structure of a 429-million-year-old fossilized trilobite eye is almost identical to that of modern bees, according to a study published in Scientific Reports. The findings suggest that the principles of vision in many insects and crustaceans today are at least half a billion years old. (2020-08-13)

Monolayer transition metal dichalcogenide lens for high resolution imaging
An ultrathin optical lens made from monolayer of two-dimensional transition metal dichalcogenides (TMDCs) could pave the way for next-generation imaging devices. An international team of researchers, led by Prof. Baohua Jia from Swinburne University of Technology in Australia, used femtosecond laser writing to pattern nanoparticles on TMDC crystals. The lens has a sub-wavelength resolution and a three-dimensional focusing efficiency of 31%, laying the foundations for optical devices for use in nano-optics and on-chip photonic applications. (2020-08-13)

Young nearsighted kids benefit from bifocal contact lenses, study shows
Bifocal contact lenses aren't just for aging eyes anymore. In nearsighted kids as young as 7 years old, multifocal contact lenses with a heavy dose of added reading power can dramatically slow further progression of myopia, new research has found. (2020-08-11)

Multifocal contact lenses slow myopia progression in children
Children wearing multifocal contact lenses had slower progression of their myopia, according to results from a clinical trial funded by the National Eye Institute, part of the National Institutes of Health. The findings support an option for controlling the condition, also called nearsightedness, which increases the risk of cataracts, glaucoma and retinal detachment later in life. Investigators of the Bifocal Lenses In Nearsighted Kids (BLINK) Study published the results August 11 in the Journal of the American Medical Association. (2020-08-11)

A new method to significantly increase the range and stability of optical tweezers
Scientists of Tomsk Polytechnic University jointly with a team of the V.E. Zuev Institute of Atmospheric Optics of the Siberian Branch of the Russian Academy of Sciences have discovered a method to increase the operation range of optical traps also known as optical tweezers. Similar devices are used to move individual microparticles in biology and chemistry. The study is published in Optics Letters (IF: 3.866; Q1). (2020-07-23)

World's smallest imaging device has heart disease in focus
A team of researchers led by the University of Adelaide and University of Stuttgart has used 3D micro-printing to develop the world's smallest, flexible scope for looking inside blood vessels. (2020-07-21)

A new path for electron optics in solid-state systems
In combined theoretical and experimental work, physicists at ETH Zurich introduce and demonstrate a novel mechanism for electron optics in two-dimensional solid-state systems. The discovery opens up a route to engineering quantum-optical phenomena in a variety of materials and devices. (2020-07-14)

ITMO University researchers develop new technique for production of plasmonics devices
Researchers from ITMO University have improved on the technique of local processing of composites based on nanoporous glass with addition of silver and copper. Now, it is possible to predict with high accuracy the optical properties of a plasmonic component during its treatment. (2020-07-13)

Electrically focus-tuneable ultrathin lens for high-resolution square subpixels
In accordance to rising demand of high-resolution, ultrathin lens device for display panels, the scientists from Korea, UK, and USA have invented an electrically focus-tunable, graphene-based ultrathin subpixel square lens device that demonstrates excellent focusing performance. Such subpixel design is uniquely developed to control the optical path of subpixels of display in visible wavelength, which is therefore easily applicable to high-resolution slim displays as an add-on feature. Ultimately, this presents new directionality to autostereoscopic display. (2020-07-06)

Spider silk can create lenses useful for biological imaging
Spider silk is useful for a variety of biomedical applications: It exhibits mechanical properties superior to synthetic fibers for tissue engineering, and it is not toxic or harmful to living cells. One unexpected application for spider silk is its use in the creation of biocompatible lenses for biological imaging applications. Researchers describe the feasibility of creating lenses capitalizing on the properties of natural spider silk material in the Journal of Applied Physics. (2020-06-30)

Plug-and-play lens simplifies adaptive optics for microscopy
Researchers have developed a new plug-and-play device that can add adaptive optics correction to commercial optical microscopes. Adaptive optics can greatly improve the quality of images acquired deep into biological samples, but has, until now, been extremely complex to implement. (2020-06-24)

Super-resolution microscopy reveals a twist inside of cells
EPFL biophysicists have developed a high-throughput super-resolution microscope to probe nanoscale structures and dynamics of mammalian cells, showing in unprecedented detail the twists and turns of an organelle important for cell division. (2020-06-22)

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