نتایج جستجو برای: laser safety
تعداد نتایج: 443496 فیلتر نتایج به سال:
Aim: To report the visual and clinical outcomes of a pilot study of subthreshold diode micropulse (SDM) laser photocoagulation for clinically significant diabetic macular oedema (CSMO). Methods: The results of infrared (810 nm) SDM laser photocoagulation for CSMO were retrospectively reviewed in 95 eyes of 69 consecutive patients with mild to moderate non-proliferative diabetic retinopathy. The...
Molecular and particulate contamination within laser systems represent two of the largest risks associated with laser systems. Optical design typically minimizes the risk due to strictly optical intensity damage related issues. However, the presence of contamination in the laser system can negate the designed in safety margins, resulting in optical damage under conditions where it would not nor...
OBJECTIVE To assess efficacy, safety, predictability, stability, and changes in corneal higher-order aberrations (CHOAs) and contrast sensitivity (CS) after a femtosecond laser for LASIK and standard LASIK for myopia. DESIGN Prospective, randomized, comparative clinical study. PARTICIPANTS Two hundred eyes of 100 consecutive patients who underwent LASIK treatment using the VISX S2 laser sys...
308nm xenon-chloride excimer laser, a novel mode of phototherapy, is an ultraviolet B radiation system consisting of a noble gas and halide. The aim of this systematic review was to investigate the literature and summarize all the experiments, clinical trials and case reports on 308-nm excimer laser in dermatological disorders. 308-nm excimer laser has currently a verified efficacy in treating ...
This study compared the collateral tissue damage and incisional bridging with granulation tissue via histopathological examination following feline onychectomy performed by radiofrequency (RF) and carbon dioxide (CO(2)) laser. Two cats were euthanized, and their digits were harvested for histopathological evaluation on days 1, 3, and 7 post-onychectomy. Each digit was evaluated for total lesion...
Pathogen reduction is a viable approach to ensure the continued safety of the blood supply against emerging pathogens. However, the currently licensed pathogen reduction techniques are ineffective against non-enveloped viruses such as hepatitis A virus, and they introduce chemicals with concerns of side effects which prevent their widespread use. In this report, we demonstrate the inactivation ...
Progress in laser technology has led to very compact but nevertheless powerful laser sources. In the visible and near infrared spectral region, lasers of any wavelength can be purchased. Continuous wave laser sources pose an especially serious threat to the human eye and electro-optical sensors due to their high proliferation and easy availability. The manifold of available wavelengths cannot b...
BACKGROUND Laser ablation may be useful in debulking of benign thyroid nodules. METHODS In order to retrospectively evaluate the effectiveness and safety of laser ablation, 45 patients with benign solid thyroid nodules, with a fluid component ≤20%, were included in our series between October 2009 and January 2011. All reported pressure and/or cosmetic complaints. Nd:YAG laser at 1064 nm was u...
The ARK mobile robot project has designed and implemented a series of mobile robots capable of navigating within industrial environments without relying on arti cial landmarks or beacons. The ARK robots employ a novel sensor, Laser Eye, that combines vision and laser ranging to e ciently locate the robot in a map of its environment. Laser Eye allows self-location of the robot in both walled and...
BACKGROUND AND OBJECTIVES Although nanosecond-domain lasers have been the mainstay of laser tattoo removal for decades, recent disruptive innovations in laser design have introduced a new class of commercial Q-switched lasers that generate picosecond-domain pulses. STUDY A picosecond-domain, Nd:YAG laser with a KTP frequency-doubling crystal was used to treat 31 decorative tattoos in 21 subje...
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