affecting 2.6 percent of the US population. It is debilitating both physically and mentally, and there is always a need to develop treatment options with better success rates, not only acutely, but long-term. Despite the wide range of treatment options available, UVB phototherapy remains one of the safest therapeutic modalities for psoriasis. The latest development in UVB phototherapy is the ex...

RESUMO O FemtoLasik é uma das técnicas mais empregadas em cirurgia refrativa, por seus bons resultados refracionais, sua previsibilidade, reprodutibilidade e segurança. Tem alto grau de satisfação, com rápida recuperação visual. Apesar as taxas complicações do serem pequenas, intercorrências podem existir. objetivo deste trabalho foi relatar um caso complicação na dissecção da lamela Lasik lase...

purpose: to evaluate the 8-year results of excimer laser photorefractive keratectomy (prk) for myopia in terms of safety, stability and late complications. methods: of 203 myopic patients who underwent prk with single-step method using nidek ec-5000 excimer laser with 5-6 mm ablation zones at basir eye center, tehran-iran from 1996 to 1998, 179 eyes of 98 patients who completed 8 years of follo...

Enhancement of the surface properties of a material by means of laser radiation has been amply demonstrated previously. In this work a comparative study for the surface modification of nylon 6,6 has been conducted in order to vary the wettability characteristics using CO2 and excimer lasers. This was done by producing 50mm spaced (with depths between 1 and 10mm) trench-like patterns using vario...

To simplify and facilitate beating heart (i.e., off-pump), minimally invasive coronary artery bypass surgery, a new coronary anastomotic connector, the Trinity Clip, is developed based on the excimer laser-assisted nonocclusive anastomosis technique. The Trinity Clip connector enables simplified, sutureless, and nonocclusive connection of the graft to the coronary artery, and an excimer laser c...

Si ion implantation was widely used to synthesize specimens of SiO2 containing supersaturated Si and subsequent high temperature annealing induces the formation of embedded luminescent Si nanocrystals. In this work, the potentialities of excimer UV-light (172 nm, 7.2 eV) irradiation and rapid thermal annealing (RTA) to enhance the photoluminescence and to achieve low temperature formation of Si...

Purpose: To present photorefractive keratectomy (PRK) results for myopia ranging from -4,00 to 6,00 diopters performed with the VISX and Summit excimer lasers. Methods: To be eligible for this study, patients had to be 20 to 45 years of age, have -4.00 to -6.00 diopters of myopia and have no more than 1 D of astigmatism. The Summit group was composed of 51 eyes. The baseline preoperative spheri...

Operating conditions for a tunable XeCl excimer laser have been optimized for tunable narrow-band operation at 222 nm with KrCl, formed in Kr/He/Ne/HCl gas mixtures. This wavelength is interesting for detection of nitric oxide (NO) in combustion environments. The laser emission coincides with the (1, 1) and (2, 2) bands of the NO A-X system. Laser-induced-fluorescence spectra taken in a flame s...

Tunable coherent radiation was produced at 35.5 nm by seventh-harmonic conversion of 248-nm radiation from a krypton fluoride excimer laser. The nonlinear interaction took place at the intersection of the laser focus and a pulsed, supersonic helium gas jet. Third- and fifth-harmonic generation produced coherent outputs at 83 and 50 nm in both helium and xenon gas jets.

Using a specially designed excimer-laser-pumped dye laser of adjustable bandwidth high-lying pure rotational transitions of both, orthoand para-hydrogen have been identified by coherent anti-Stokes Raman scattering (CARS). As an interesting application Hz-based CARS-thermometry is discussed.