Results 111 to 120 of about 110,606 (256)

Effect of SoftPerm lens wear on corneal thickness and topography: A comparison between keratoconic and normal corneae

open access: yes, 2002
Purpose. Complications related to contact lens-induced anoxia in the keratoconic eye are well documented, but the underlying mechanisms are poorly understood.
Watters, GA, Gamble, G, Owens, H
core  

Correlation analysis of lens and anterior chamber angle structure in individuals aged 60 and above in Northwest China

open access: yesYanke Xuebao
[Objective:] To explore the influencing factors of lens thickness (LT) and relative lens position (RLP) in individuals aged 60 and above in Northwestern China, as well as their correlation with anterior chamber angle structure.
CHEN Juexiao   +13 more
doaj   +1 more source

Engineering Strain‐Stiffening Granular Hydrogels for 3D‐Printed Tissue‐Mimicry

open access: yesAdvanced Materials, EarlyView.
A 3D‐printable strain‐stiffening double‐network granular hydrogel (SDGH) enables independent, region‐specific tuning of toe (EToe) and heel (EHeel) moduli through control of microgel packing and network composition. This platform replicates tissue‐like nonlinear mechanics and allows fabrication of high‐fidelity, multilayered aortic valves with ...
Hyeokju Chae   +9 more
wiley   +1 more source

The relationship of lens thickness and anterior chamber depth with intraocular pressure during hemodialysis [PDF]

open access: yes, 2011
Introduction: Hemodialysis is a common renal replacement therapy in the end stage renal failure. Fluctuation of intraocular pressure occurred during hemodialysis.
Wai Seng, Chiang
core  

Impact of multifocal contact lens wear on optical coherence tomography measurements of the cornea and retina

open access: yesPhotodiagnosis and Photodynamic Therapy
Purpose: This study aimed to evaluate the influence of multifocal contact lenses (MFCLs) on structural optical coherence tomography (OCT) parameters, including central corneal thickness (CCT), ganglion cell–inner plexiform layer (GCIPL) thickness, and ...
Atılım Armağan Demirtaş   +3 more
doaj   +1 more source

Second‐Harmonic Hyper‐Mie Optical Activity Enables Closed‐Loop Chiral Photochemistry

open access: yesAdvanced Materials, EarlyView.
Nonlinear chiral photochemistry is demonstrated in CdTe/CdO nanohelices, where circularly polarized infrared light both drives and tracks photo‐oxidation via second‐harmonic scattering. This closed‐loop process reveals real‐time structural evolution, including shell fracturing and core exposure, accompanied by a transition from hyper‐Mie to hyper ...
Hoyeon Choi   +6 more
wiley   +1 more source

Noncontact optical measurement of lens capsule thickness ex vivo

open access: yes, 2004
Purpose: To design a non-contact optical system to measure lens capsule thickness in cadaver eyes. Methods: The optical system uses a 670nm laser beam delivered to a single-mode fiber coupler.
Uhlhorn, Stephen   +3 more
core   +1 more source

Ultra‐High‐Throughput Discovery of Multifunctional Polyphenolic Coatings on Droplet Microarrays

open access: yesAdvanced Materials, EarlyView.
An ultra‐high‐throughput (UHT) combinatorial strategy enables the miniaturized synthesis and screening of ≈30 000 polyamine‐polyphenolic (PaPp) coatings using droplet microarrays (DMA). This approach reveals hundreds of previously unknown fluorescent, redox‐active, and antibacterial materials, including multifunctional, cell‐compatible surfaces ...
Vania Tanda Widyaya   +11 more
wiley   +1 more source

Human Lens Capsule Thickness as a Function of Age and Location along the Sagittal Lens Perimeter [PDF]

open access: yes, 2006
PURPOSE. To investigate the variation in the thickness of the human lens capsule along the lens perimeter, as well as its changes with age. METHODS. Altogether, 26 human donor lenses, aged 12 to 103 years, were histologically processed. Sagittal sections
Francisco Tresserra   +4 more
core  

The use of ocular anatomical measurements using a rotating Scheimpflug camera to assist in the Esclera (R) scleral contact lens fitting process

open access: yes, 2016
Purpose: To test for associations between Pentacam (R) derived topography variables and to evaluate the predictive power of those variables in relation to scleral contact lens (SCL) fit.
Weber, Sarah La Porta [UNIFESP]   +4 more
core   +1 more source

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