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您的检索式：作者名="Scott Robbie"
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| 1 | Corneal astigmatic outcomes after femtosecond laser-assisted cataract surgery combined with surface penetrating arcuate keratotomies显示文摘AIM:To evaluate corneal astigmatic outcomes of femtosecond laser-assisted arcuate keratotomies(FAKs)combined with femtosecond-laser assisted cataract surgery(FLACS)over 12mo follow-up.METHODS:Totally 145 patients with bilateral cataracts and no ocular co-morbidities were recruited to a singlecentre,single-masked,prospective randomized controlled trial(RCT)comparing two monofocal hydrophobic acrylic intraocular lenses.Eyes with corneal astigmatism(CA)of>0.8 dioptres(D)received unpaired,unopened,surface penetrating FAKs at the time of FLACS.Visual acuity,subjective refraction and Scheimpflug tomography were recorded at 1,6,and 12mo.Alpins vectoral analyses were performed.RESULTS:Fifty-one patients(61 eyes),mean age 68.2±9.6y[standard deviation(SD)],received FAKs.Sixty eyes were available for analysis,except at 12mo when 59 attended.There were no complications due to FAKs.Mean pre-operative CA was 1.13±0.20 D.There was a reduction of astigmatism at all post-operative visits(residual CA 1mo:0.85±0.42 D,P=0.0001;6mo:0.86±0.35 D,P=0001;and 12mo:0.90±0.39,P=0.0001).Alpins indices remained stable over 12mo.Overall,the cohort was under-corrected at all time points.At 12mo,61%of eyes were within±15 degrees of pre-operative astigmatic meridian.CONCLUSION:Unpaired unopened penetrating FAKs combined with on-axis phacoemulsification are safe but minimally effective.CA is largely under-corrected in this cohort using an existing unmodified nomogram.The effect of arcuate keratotomies on CA remained stable over 12mo. | Nick Stanojcic David O’Brart Chris Hull Vijay Wagh Elodie Azan Mani Bhogal Scott Robbie Ji-Peng Olivia Li | 2023 | International Journal of Ophthalmology(English edition)2023，16，7： | 0 |
| 2 | Ion source perturbation and control in intense laser plasma interaction显示文摘We present here experimental results on the optimization of the mega-electronvolt ion source from the target front surface by using relativistic(10^(18)W/cm^(2))interactions with ultra-short laser pulses(50 fs).The source perturbation in the accelerated proton/ion beam was primarily controlled by the addition of a pre-pulse to main pulse contrast ratio.The 2D particle-in-cell simulations agreed well with the observed experimental results for the ion source perturbation and mitigation.This work provides insights into ion source perturbations(temporal and spatial)and the need to control them in intense laser–plasma interactions.Our results may assist in the efficient guiding of proton/ion beams to the core of fusion fuel or of ions in cancer therapy. | B.Ramakrishna S.Krishnamurthy M.Tayyab S.Bagchi K.Makur Raoul Trines Robbie Scott Alex Robinson J.A.Chakera | 2020 | Matter and Radiation at Extremes2020，5，4： | 0 |
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