Results 31 to 40 of about 114,361,734 (160)

Continuous wave and modelocked femtosecond novel bulk glass lasers operating around 2000 nm [PDF]

, 2010
This thesis reports on the development of glass-based femtosecond laser sources around 2 µm wavelength. In order to be able to produce 2 µm radiation the dopants used were trivalent Thulium (Tm³⁺) and trivalent Holmium (Ho³⁺) that could be optically ...
Fusari, Flavio, Brown, C. T. A., C. T. A. Brown, F. Fusari, Lagatsky, A. A., Calvez, S., S. Calvez, Dawson, M. D., W. Sibbett, J.A. Gupta, G. Jose, A. Jha, M.D. Dawson, Fusari, F., Gupta, J. A., Sibbett, W., Jha, A., Jose, G., A. A. Lagatsky   +18 more
core   +1 more source

Topography-guided laser in-situ keratomileusis to treat visual distortions due to higher-order aberrations induced after ablation procedures

Indian Journal of Ophthalmology. Case Reports, 2021
A 27-year-old male, with a history of bilateral Laser in situ keratomileusis (LASIK) followed by photorefractive keratectomy, presented with complaints of disturbed quality of vision, the right eye worse than the left eye.
Urvija Choudhary, Ayushi Choudhary, Rajiv Choudhary   +2 more
doaj   +1 more source

The art and science of femtosecond laser writing [PDF]

, 2009
We demonstrate how femtosecond laser writing can challenge common beliefs in optics. Recently discovered phenomena of quill writing related to self-assembled nanostructuring in glasses and non-reciprocal laser writing in crystals are ...
Kazansky, P.G., Kazuyuki Hirao, Hirao, K., Yuri P. Svirko, Svirko, Y.P., Shimotsuma, Y., Yasuhiko Shimotsuma, Peter G. Kazansky, Martynas Beresna, Beresna, Martynas   +9 more
core   +1 more source

Comparison of clinical outcome of small-incision lenticule intrastromal keratoplasty and FS-LASIK for correction of moderate and high hyperopia [PDF]

International Journal of Ophthalmology, 2022
AIM: To compare the clinical outcome of small-incision lenticule intrastromal keratoplasty (sLIKE) and femtosecond laser-assisted in situ keratomileusis (FS-LASIK) for correction of moderate and high hyperopia.
Li Zhang, Yue-Hua Zhou, Chang-Bin Zhai, Jing Zhang, Yan Zheng   +4 more
doaj   +1 more source

Comparison of visual acuity, refractive results and complications of femtosecond laser with mechanical microkeratome in LASIK

International Journal of Ophthalmology, 2013
AIM: To compare the outcomes of laser in situ keratomileusis (LASIK) performed with a femtosecond laser (Femtec, Technolas Perfect Vision GmbH, Germany) versus a mechanical microkeratome (Hansatome, Bausch and Lomb, USA) for the correction of myopia and
Murat Moray, Tansu Gonen, Cemile Banu Cosar, Asim Bozkurt Sener   +3 more
doaj   +1 more source

Femtosecond Laser Refractive Surgery after Descemet Stripping-Automated Endothelial Keratoplasty

Case Reports in Ophthalmological Medicine, 2012
Purpose. To report the use of femtosecond laser-assisted in situ keratomileusis (LASIK) in the treatment of hyperopia subsequent to Descemet stripping-automated endothelial keratoplasty (DSAEK). Methods. Interventional case report. Results. A 66-year-old
Simon Sheung Man Fung, Alfonso Iovieno, Vijay Shanmuganathan, Vicenzo Maurino   +3 more
doaj   +1 more source

Changes in corneal asphericity and spherical aberration after femtosecond laser in situ keratomileusis

Delta Journal of Ophthalmology, 2021
Purpose The aim of this study was to evaluate the changes in corneal asphericity (Q value) and spherical aberration after femtosecond laser in situ keratomileusis using Scheimpflug imaging.
Mohamed El-Kateb
doaj   +1 more source

Femtosecond laser in-situ keratomileusis flap configurations

, 2011
The corneal flap laser in-situ keratomileusis (LASIK) is among the most important determinants in the successful outcome of the surgery. Femtosecond lasers have evolved over the last decade to all but replace the mechanical microkeratome as the preferred
Sonia H Yoo, Yoo, Sonia H, Vaddavalli, Pravin K, Pravin K Vaddavalli   +3 more
core   +1 more source

Fibre Bragg grating fabrication in germanosilicate fibres with 244nm femtosecond laser light

, 2006
The ability to fabricate strong and extraordinarily stable Bragg gratings in any type of fibre using femtosecond laser light has attracted much interest in the recent past. The induced index change has been attributed to glass densification brought about
Banks, D.P., D. P Banks, M. Ibsen, Canning, J., Mills, J.D., Ibsen, M., A. Canagasabey, Canagasabey, A., J. Canning, J. D. Mills   +9 more
core   +1 more source

Induced higher-order aberrations after laser in situ keratomileusis (LASIK) performed with wavefront-guided IntraLase femtosecond laser in moderate to high astigmatism [PDF]

, 2016
Background\ud \ud Wavefront-guided Laser-assisted in situ keratomileusis (LASIK) is a widespread and effective surgical treatment for myopia and astigmatic correction but whether it induces higher-order aberrations remains controversial.
Osuagwu, Uchechukwu L. (R19382), Osuagwu, Uchechukwu L., Al-Zeraid, Ferial M.   +2 more
core   +2 more sources