Results 61 to 70 of about 49,431 (315)

Exploiting Two‐Photon Lithography, Deposition, and Processing to Realize Complex 3D Magnetic Nanostructures

open access: yesAdvanced Functional Materials, EarlyView.
Two‐photon lithography (TPL) enables 3D magnetic nanostructures with unmatched freedom in geometry and material choice. Advances in voxel control, deposition, and functionalization open pathways to artificial spin ices, racetracks, microrobots, and a number of additional technological applications.
Joseph Askey   +5 more
wiley   +1 more source

Upconversion Nanoparticles Embedded Photonic Contact Lens for Transepithelial Corneal Crosslinking Using Hyaluronate – Riboflavin Conjugate

open access: yesAdvanced Functional Materials, EarlyView.
A minimally invasive, transepithelial corneal cross‐linking (TE‐CXL) approach is presented using upconversion nanoparticles (UCNPs)‐loaded contact lenses (UCLs), after topical delivery of hyaluronate–riboflavin conjugates. The NIR‐to‐UV/blue light conversion by UCNPs in a UCL can activate riboflavin for TE‐CXL, resulting in the biomechanical strength ...
Gibum Lee   +8 more
wiley   +1 more source

Sutured scleral fixation of existing subluxated/dislocated acrylic one-piece intraocular lenses [PDF]

open access: yesInternational Journal of Ophthalmology
AIM: To evaluate the visual and refractive outcomes in cases after sutured scleral fixation of existing subluxated or dislocated acrylic one-piece intraocular lenses (IOLs).
Wei-Yu Huang, Yung-Jen Chen
doaj   +1 more source

A to Z of ReLEx SMILE: All you need to know

open access: yesDelhi Journal of Ophthalmology, 2021
ReLEx SMILE (Refractive lenticule exchange - Small incision lenticule extraction) is a new generation of laser vision correction, performed using the Visumax femtosecond laser system (Carl Zeiss Meditec AG, Jena, Germany) for the correction of myopia and
Sanjana Vatsa   +2 more
doaj   +1 more source

Keratoprostheses for corneal blindness: a review of contemporary devices [PDF]

open access: yes, 2015
According to the World Health Organization, globally 4.9 million are blind due to corneal pathology. Corneal transplantation is successful and curative of the blindness for a majority of these cases. However, it is less successful in a number of diseases
Avadhanam, Venkata   +2 more
core   +1 more source

Multiple Twinning in Nacre and Aragonite

open access: yesAdvanced Functional Materials, EarlyView.
Electron backscatter diffraction map of a cluster of geologic aragonite, exhibiting single, double, and triple twins. The whole cluster is approximately 2 cm wide. Colors indicate crystal orientations, so that pixels where the a‐, b‐, and c‐axis is perpendicular to the image plane are green, red, and blue, respectively.
Connor A. Schmidt   +7 more
wiley   +1 more source

Contact Lens Practices and Knowledge of Complications and its Association With Refractive Error in Saudi Arabia [PDF]

open access: diamond, 2021
Othman R. Alzahrani   +6 more
openalex   +1 more source

Prospective Cohort Study on Refractive Changes after Trabeculectomy

open access: yesJournal of Ophthalmology, 2019
We prospectively evaluated refractive changes in the eyes of 97 patients who underwent trabeculectomy at Fukui University Hospital, Fukui, Japan. The primary outcome measure was the refractive change after trabeculectomy.
Kentaro Iwasaki   +6 more
doaj   +1 more source

The evaluation of ocular refractive error and axial length changes after scleral buckle removal

open access: yesJournal of Family Medicine and Primary Care, 2019
Purpose: The present study aimed to evaluate refractive error and axial length changes after buckle removal due to buckle complications. Methods: A total of 15 patients involved in this study. The enrolled patients who had history of scleral buckling (SB)
Ahoor M Hosein   +4 more
doaj   +1 more source

Design of waveguides, bends and splitters in photonic crystal slabs with hexagonal holes in a triangular lattice [PDF]

open access: yes, 2005
Waveguides in photonic crystal slabs (PCS) can be obtained by omitting a row of holes (W1-waveguides). In general the propagation properties in such waveguides suffer from the unavoidable periodic sidewall corrugation caused by the remaining parts of the
Bostan, Cazimir G., Ridder, René M. de
core   +3 more sources

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