Results 31 to 40 of about 65,629 (304)

Improved Femtosecond Laser-Assisted Phacoemulsification of Hard Nucleus Cataract

Oftalʹmologiâ, 2020
Purpose: The development and clinical study of improved femtosecond laser-assisted phacoemulsification (PE) technology of hard nucleus cataract.Patients and methods. Improved femtosecond laser-assisted PE of hard nucleus cataract performed in 83 patients
Yu. N. Yousef, G. V. Voronin, S. N. Yousef, A. S. Vvedenskiy, L. Alkharki, N. Y. Shkolyarenko, E. V. Reznikova   +6 more
doaj   +1 more source

Flap Thickness and the Risk of Complications in Mechanical Microkeratome and Femtosecond Laser In Situ Keratomileusis: A Literature Review and Statistical Analysis

Diagnostics, 2021
Introduction: A recent Cochrane review found no difference in visual acuity outcomes between femtosecond-assisted laser in situ keratomileusis (LASIK) and LASIK using mechanical microkeratomes (MMKs).
Piotr Kanclerz, Ramin Khoramnia
doaj   +1 more source

Femtosecond laser cataract surgery [PDF]

Eye and Vision, 2015
Femtosecond laser (FSL) cataract surgery is in its infancy but is rapidly gaining popularity due to the improved consistency and predictability for corneal incisions and anterior capsulorhexis. It enables subsequently less phacoemulsification energy and time to be employed, which has gains in terms of reduced corneal oedema. In addition, the FSL allows
Nagy, Zoltán Zsolt, McAlinden C
openaire   +3 more sources

Effect of Femtosecond Laser Polarization on the Damage Threshold of Ta₂O₅/SiO₂ Film

Applied Sciences, 2022
The study used linearly and circularly polarized femtosecond pulsed lasers to irradiate a Ta2O5/SiO2 film. Firstly, the damage thresholds of the film for linearly and circularly polarized femtosecond pulsed lasers were measured in 1-on-1 mode.
Luwei Zhang, Xiaodong Jia, Yunzhe Wang, Yin Zhang, Anmin Chen, Junfeng Shao, Changbin Zheng   +6 more
doaj   +1 more source

Analysing the significance of small conformational changes and low occupancy states in serial crystallographic data

FEBS Open Bio, EarlyView.
This protocol paper outlines methods to establish the success of a time‐resolved serial crystallographic experiment, by means of statistical analysis of timepoint data in reciprocal space and models in real space. We show how to amplify the signal from excited states to visualise structural changes in successful experiments.
Jake Hill, Yelyzaveta Pulnova, Elke De Zitter, Helen M. Ginn, Briony A. Yorke   +4 more
wiley   +1 more source

Ultrafast Photoexcitation Induced Nonthermal Lattice Expansion in 2D Perovskite

Advanced Science
Light‐induced lattice change of perovskites is found to be critical for device performance. However, the underlying mechanism is still not fully understood.
Xiangyu Chen, Jiakang Zhou, Yunfan Yue, Zhongle Zeng, Xuewen Wang   +4 more
doaj   +1 more source

Femtosecond laser-assisted intrastromal MyoRing implantation for correction of irregular astigmatism after penetrating keratoplasty and high myopia

Indian Journal of Ophthalmology. Case Reports, 2021
MyoRing was implanted using a femtosecond laser to correct a high irregular corneal astigmatism after penetrating keratoplasty and high myopia. Femtosecond laser-assisted intrastromal MyoRing implantation allows to increase its sphericity, regularity and
Pozdeyeva Nadezhda Aleksandrovna, Sinitsyn Maksim Vladimirovich   +1 more
doaj   +1 more source

Refinement of amino‐acid conformation vs. difference density maps in time‐resolved serial femtosecond crystallography data analysis

FEBS Open Bio, EarlyView.
The dFoCC pipeline starts with observed DED and resting‐state coordinates, which are then used to generate a library of triggered states. Correlation analysis of the calculated DED features of each candidate vs observed DED permits quantitative evaluation of candidate structural quality.
Meng Iao Fong, Yuhei Hosokawa, Lars Oliver Essen, Manuel Maestre‐Reyna   +3 more
wiley   +1 more source

High fidelity femtosecond pulses from an ultrafast fiber laser system via adaptive amplitude and phase pre-shaping [PDF]

, 2009
We report the generation of a 12.6W average power, 50MHz repetition rate pulse train, compressible to high fidelity 170fs pulses, from an ultrafast ytterbium-doped fiber laser system via adaptive amplitude and phase pre ...
Shepherd, D.P., Hanna, D.C., Jerry Prawiharjo, David J. Richardson, Nikita K. Daga, David C. Hanna, Prawiharjo, J., Richardson, D.J., Geng, R., Rui Geng, David P. Shepherd, Daga, N.K.   +11 more
core   +1 more source

Targeted transfection by femtosecond laser

Nature, 2002
The challenge for successful delivery of foreign DNA into cells in vitro, a key technique in cell and molecular biology with important biomedical implications, is to improve transfection efficiency while leaving the cell's architecture intact. Here we show that a variety of mammalian cells can be directly transfected with DNA without perturbing their ...
Tirlapur, U, König, K
openaire   +4 more sources