Results 51 to 60 of about 72,833 (298)

Clinical Performance of Toris K Contact Lens in Patients with Moderate to Advanced Keratoconus: A Real Life Retrospective Analysis

Journal of Ophthalmology, 2016
Objectives. To evaluate the visual performance of Toris K soft contact lenses in patients with moderate-to-advanced keratoconus and also to compare the results according to cone types, cone location, and severity of keratoconus.
Ihsan Yilmaz, Ferah Ozcelik, Berna Basarir, Gokhan Demir, Gonul Durusoy, Muhittin Taskapili   +5 more
doaj   +1 more source

Visual responses in mice lacking critical components of all known retinal phototransduction cascades.

PLoS ONE, 2010
The mammalian visual system relies upon light detection by outer-retinal rod/cone photoreceptors and melanopsin-expressing retinal ganglion cells. Gnat1(-/-);Cnga3(-/-);Opn4(-/-) mice lack critical elements of each of these photoreceptive mechanisms via ...
Annette E Allen, Morven A Cameron, Timothy M Brown, Anthony A Vugler, Robert J Lucas   +4 more
doaj   +1 more source

Selectivity of human retinotopic visual cortex to S-cone-opponent, L/M-cone-opponent and achromatic stimulation

, 2007
Our aim was to make a quantitative comparison of the response of the different visual cortical areas to selective stimulation of the two different cone-opponent pathways [long- and medium-wavelength (L/M)- and short-wavelength (S)-cone-opponent] and the ...
McMahon, Katie L., McMahon, K. L., de Zubicaray, Greig I., Hess, Robert F., Mullen, K. T., Dumoulin, Serge O., de Zubicaray, G. I., Hess, R. F., Mullen, Kathy T., Dumoulin, S. O.   +9 more
core   +1 more source

Single‐molecule DNA flow‐stretch assays for high‐throughput DNA–protein interaction studies

FEBS Open Bio, EarlyView.
We describe an optimised single‐molecule DNA flow‐stretch assay that visualises DNA–protein interactions in real time. Linear DNA fragments are tethered to a surface and stretched by buffer flow for fluorescence imaging. Using λ and φX174 DNA, this protocol enhances reproducibility and accessibility, providing a versatile approach for studying diverse ...
Ayush Kumar Ganguli, Mohammad Nour Alsamsam, Ugnė Bagdonaitė, Van Truc Vu, Chun‐Jen Huang, Polina Kuzhir, Mindaugas Zaremba, Aurimas Kopūstas, Marijonas Tutkus   +8 more
wiley   +1 more source

Laser Powder Bed Fusion of Alumina: Effects of Scanning Strategies on External and Internal Defects

Advanced Engineering Materials, EarlyView.
This study investigates how scanning strategies affect pure alumina in laser powder bed fusion. Linear 45° scanning yields uniform surfaces but high porosity, while the island‐concentric strategy provides higher density with through‐holes favorable for infiltration. Findings highlight pathways toward optimizing defect‐free alumina parts.
Mohamed Abdelmoula, Gökhan Küçüktürk, Duran Kaya, David Grossin, Christophe Tenailleau, Benjamin Duployer, Enrique Juste, Fabrice Petit   +7 more
wiley   +1 more source

Dynamics of color vision recovery in Vogt-Koyanagi-Harada disease: a longitudinal study using cone contrast test and adaptive optics imaging

Journal of Ophthalmic Inflammation and Infection
Background Vogt-Koyanagi-Harada (VKH) disease affects visual function, but the recovery process of color vision remains incompletely understood.
Tomoko Nakamura, Shinya Abe, Hitoshi Yamazaki, Toshihiko Oiwake, Atsushi Hayashi   +4 more
doaj   +1 more source

Commissural Axon Kinetics and the Role of Netrin in Early Brain Circuitry Development [PDF]

, 2005
As neurons begin to differentiate, they send out processes called axons to initiate the formation of functional nerve connections. A specialized structure at the end of an axon called the growth cone is believed to possess the impressive navigational and
Bak-Maier, Magdalena
core   +1 more source

Near‐Field Electrospinning Micro‐Printhead Achieves Precise Control of Nanofiber Deposition

Advanced Engineering Materials, EarlyView.
A micro‐printhead for near‐field electrospinning enables reproducible deposition of polymer nanofibers with diameters below 50 nm. Systematic parameter studies uncover the mechanisms linking operating conditions to fiber morphology, paving the way for precise and low‐cost nanoscale 3D manufacturing.As a high‐resolution, cost‐effective, and rapid ...
Han Xu, Dario Mager, Jan G. Korvink
wiley   +1 more source

Decoding Cone Morphology in Keratoconus: A Retrospective Study on Contact Lens Selection in Turkish Patients

Journal of Current Ophthalmology
Purpose: To explore the relationship between cone morphology and the selection of appropriate contact lens types for patients with keratoconus. Specifically, this study aimed to evaluate how keratometry values, cone morphology, and disease severity ...
Gül Varan, Serkan Güler, Seda Duran Güler, Burcu Nurözler Tabakçi, Yusuf Yildirim   +4 more
doaj   +1 more source

Cone visual pigments of monotremes: Filling the phylogenetic gap [PDF]

Visual Neuroscience, 2008
We have determined the sequence and genomic organization of the genes encoding the cone visual pigment of the platypus (Ornithorhynchus anatinus) and the echidna (Tachyglossus aculeatus), and inferred their spectral properties and evolutionary pathways.
Wakefield, M., Anderson, M., Chang, E., Wei, K., Kaul, R., Marshall-Graves, J., Grutzner, F., Deeb, S.   +7 more
openaire   +3 more sources