Results 71 to 80 of about 597,116 (348)

Meniscus Pixel Printing for Contact‐Lens Vision Sensing and Robotic Control

open access: yesAdvanced Functional Materials, EarlyView.
A visual‐sensing contact lens is enabled by meniscus pixel printing (MPP), which rapidly patterns a 200 µm perovskite photodetector pixel in 1 s without masks, vacuum processing, or bulky equipment. A deep‐learning‐based super‐resolution reconstructs sparse on‐lens signals into 80 × 80 high‐resolution visual information, while AI‐driven eye‐tracking ...
Byung‐Hoon Gong   +7 more
wiley   +1 more source

Association between omega-3 polyunsaturated fatty acids and cataracts: results from a cross-sectional survey and mendelian randomization analysis

open access: yesJournal of Functional Foods
This study investigated the association between omega-3 polyunsaturated fatty acids (PUFAs) and cataract risk by combining observational and genetic approaches. A cross-sectional analysis of the National Health and Nutrition Examination Survey (2003–2008)
Fan Meng   +5 more
doaj   +1 more source

Combination of Bandage Contact Lens and Autologous Serum Eye Drop for the Treatment of Superior Limbic Keratoconjunctivitis

open access: yesClinical Optometry, 2023
Nina Asrini Noor JEC Eye Hospitals and Clinics, Jakarta, IndonesiaCorrespondence: Nina Asrini Noor, JEC Eye Hospital Kedoya, Jalan Terusan Arjuna Utara No.
Noor NA
doaj  

Coating Artificial Spider Silk Fiber with Magnetic FeCo: An Effective Strategy for Creating a Flexible Magneto‐Responsive Material

open access: yesAdvanced Functional Materials, EarlyView.
An original method is presented for producing artificial spider silk fibers with magnetic and magnetomechanical responsiveness, which consists in coating them with a nanometer‐thick layer of FeCo alloy by sputtering deposition. The challenge of combining organic materials and inorganic magnetic nanostructures is addressed, thus taking a step forward ...
Filippo Lanaro   +5 more
wiley   +1 more source

Perfect imaging with geodesic waveguides

open access: yes, 2010
Transformation optics is used to prove that a spherical waveguide filled with an isotropic material with radial refractive index n=1/r has radial polarized modes (i.e.
Chen H   +8 more
core   +1 more source

Report of IRPA task group on the impact of the eye lens dose limits [PDF]

open access: yes, 2017
In 2012 IRPA established a task group (TG) to identify key issues in the implementation of the revised eye lens dose limit. The TG reported its conclusions in 2013.
Akahane, Keiichi   +9 more
core   +3 more sources

Coagulative Granular Hydrogels with an Enzyme Catalyzed Fibrin Network for Endogenous Tissue Regeneration

open access: yesAdvanced Healthcare Materials, EarlyView.
Coagulative granular hydrogels are composed of packed thrombin‐functionalized microgels that catalyze the conversion of fibrinogen into a secondary fibrin network, filling the interstitial voids. This bio‐inspired approach stabilizes the biomaterial to match the robustness of bulk hydrogels without compromising injectability, mimicking the initial ...
Zhipeng Deng   +16 more
wiley   +1 more source

“In situ” corneal and contact lens thickness changes with high resolution OCT [PDF]

open access: yes, 2012
Purpose: To show the utility of high resolution spectral domain optical coherence tomography (HR SOCT) for the in situ evaluation of epithelial, stromal and contact lens (CL) thickness changes under closed-eye conditions without lens removal. Settings:
Cerviño, Alejandro   +5 more
core   +1 more source

Modular Control of PEG‐Poly(2‐Oxazoline) Co‐Assembly Enables Tunable Aggregate Properties for Intraocular Pressure Management

open access: yesAdvanced Healthcare Materials, EarlyView.
A thermo‐responsive poly(2‐oxazoline)‐based injectable formulation is developed to modulate intraocular pressure (IOP) in both normal and hypotonic eyes. By adjusting the PEG content, the aggregation behavior is finely tuned, enabling IOP elevation without long‐term deposition.
Yuji Tanaka   +2 more
wiley   +1 more source

Refractive behavior changes with six months daily wear of high and low oxygen permeability hydrogel contact lenses

open access: yesAfrican Vision and Eye Health, 2006
Introduction: The investigation of myopia and soft contact lenses is not new. Many reports show  that  the  wearing  of  silicone  hydrogel lenses as opposed to conventional disposable hydrogel lenses results in little progression of myopia in the eyes ...
W.D.H. Gillan
doaj   +1 more source

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