Results 81 to 90 of about 573,457 (326)

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

Comparison of antiangiogenic agents (ranibizumab, aflibercept, bevacizumab and ziv-aflibercept) in the therapeutic response to the exudative form of age-related macular degeneration according to the treat-and-extend protocol- true head-to-head study

open access: yesInternational Journal of Retina and Vitreous
Purpose To evaluate the structural and functional changes in eyes with neovascular age related macular degeneration (nAMD) in a real-world setting, using Treat and Extend protocol (T&E), comparing four antiangiogenic agents.
Tereza Kanadani   +4 more
doaj   +1 more source

System and method for character recognition [PDF]

open access: yes, 1974
A character recognition system is disclosed in which each character in a retina, defining a scanning raster, is scanned with random lines uniformly distributed over the retina.
Hong, J. P.
core   +1 more source

On the AER Stereo-Vision Processing: A Spike Approach to Epipolar Matching [PDF]

open access: yes, 2013
Image processing in digital computer systems usually considers visual information as a sequence of frames. These frames are from cameras that capture reality for a short period of time.
Cerezuela Escudero, Elena   +5 more
core   +1 more source

Spectrally Tunable 2D Material‐Based Infrared Photodetectors for Intelligent Optoelectronics

open access: yesAdvanced Functional Materials, EarlyView.
Intelligent optoelectronics through spectral engineering of 2D material‐based infrared photodetectors. Abstract The evolution of intelligent optoelectronic systems is driven by artificial intelligence (AI). However, their practical realization hinges on the ability to dynamically capture and process optical signals across a broad infrared (IR) spectrum.
Junheon Ha   +18 more
wiley   +1 more source

Can Laser Retinopexy Prevent Retinal Detachment in Asymptomatic, High-Risk Eyes?

open access: yesClinical Ophthalmology
Robert E Morris,1– 3 Mathew R Sapp,1– 3 Dewayne R Conn,1,2 Harshvardhan Chawla,1– 3 Ferenc Kuhn1,4 1Helen Keller Eye Research Foundation, Birmingham, AL, USA; 2Retina Specialists of Alabama, Birmingham, AL, USA; 3Department of Ophthalmology, University ...
Morris RE   +4 more
doaj  

Age and diabetes related changes of the retinal capillaries: an ultrastructural and immunohistochemical study [PDF]

open access: yes, 2015
Normal human aging and diabetes are associated with a gradual decrease of cerebral flow in the brain with changes in vascular architecture. Thickening of the capillary basement membrane and microvascular fibrosis are evident in the central nervous system
ARTICO, Marco   +10 more
core   +1 more source

Living Liquid Metal Composites Embedded with Electrogenic Endospores for Next‐Generation Bioelectronics

open access: yesAdvanced Functional Materials, EarlyView.
A new class of living liquid metal composites is introduced, embedding Bacillus subtilis endospores into eutectic gallium–indium (EGaIn). The spores enhance droplet coalescence, strengthen interfacial conductivity, and provide on‐demand electrogenic functionality after germination. The composites exhibit high conductivity, self‐healing, patternability,
Maryam Rezaie, Yang Gao, Seokheun Choi
wiley   +1 more source

Comparative analysis of pre-operative findings and post-operative outcomes in primary and secondary macular holes at a tertiary eye hospital in South India

open access: yesInternational Journal of Retina and Vitreous
Purpose This study aimed to compare demographics, clinical characteristics, and post-surgical outcomes between idiopathic and secondary full-thickness macular holes (MHs).
Shubham Darade   +11 more
doaj   +1 more source

Replication study: Development and validation of deep learning algorithm for detection of diabetic retinopathy in retinal fundus photographs [PDF]

open access: yes, 2018
Replication studies are essential for validation of new methods, and are crucial to maintain the high standards of scientific publications, and to use the results in practice.
Bongo, Lars Ailo   +2 more
core   +3 more sources

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