Results 41 to 50 of about 59,665 (311)
Background: Since thin and high-quality flaps produce more satisfactory surgical outcomes, flaps created by mechanical microkeratomes are more economical as compared with femtosecond lasers, and no Iranian study has concentrated laser in situ ...
Farhad Fazel+4 more
doaj +1 more source
Bowman Keratomileusis: Better than Laser Assisted In Situ Keratomileusis (LASIK)?
The most important factor in undertaking a refractive procedure is that we need to be within the stroma to make it comfortable to the patient. But, from a biomechanical standpoint, we need to be as superficial as we can.
Savleen Kaur, Sparshi Jain
doaj +1 more source
Measuring HERA's primary beam in-situ: methodology and first results [PDF]
The central challenge in 21~cm cosmology is isolating the cosmological signal from bright foregrounds. Many separation techniques rely on the accurate knowledge of the sky and the instrumental response, including the antenna primary beam. For drift-scan telescopes such as the Hydrogen Epoch of Reionization Array \citep[HERA, ][]{DeBoer2017} that do not
arxiv +1 more source
Corneal stromal demarcation line after collagen cross-linking in corneal ectatic diseases: a review of the literature [PDF]
Collagen cross-linking (CXL) is a relatively new conservative approach for progressive corneal ectasia, which is able to strengthen corneal tissue reforming new covalent bonds.
SPADEA, LEOPOLDO+2 more
core +1 more source
Laser cooling with ultrafast pulse trains [PDF]
We propose a new laser cooling method for atomic species whose level structure makes traditional laser cooling difficult. For instance, laser cooling of hydrogen requires vacuum-ultraviolet laser light, while multielectron atoms need laser light at many widely separated frequencies.
arxiv +1 more source
Evaluation of the cut quality of Masyk® microkeratome in obtaining corneal flap from human eyes of an Eye Bank [PDF]
PURPOSE: To evaluate the cut quality of Masyk® microkeratome in obtaining a corneal flap from human eyes of Eye Banks. METHODS: Prospective study with 20 human eyes from Eye Banks. All flaps were programmed to obtain 160 µm thickness and 9.5 mm diameter.
Alves, Milton Ruiz+2 more
core +2 more sources
LASIK in a residency program: microkeratome-related complications [PDF]
PURPOSE: To evaluate microkeratome complications related to laser in situ keratomileusis - LASIK - in a residency program. METHODS: A total of 1,611 eyes were retrospectively evaluated after being submitted to laser in situ keratomileusis - LASIK surgery
Campos, Mauro Silveira de Queiroz+2 more
core +3 more sources
Longitudinal Laser Shaping in Laser Wakefield Accelerators [PDF]
We study the energetics of wake excitation during the laser-plasma interaction in application to laser wakefield accelerators. We find that both the wake amplitude and the accelerating efficiency (transformer ratio) can be maximized by properly shaping the longitudinal profile of the driving laser pulse.
arxiv +1 more source
Laser in situ keratomileusis in 2012: a review [PDF]
Laser in situ keratomileusis (LASIK) is a safe and effective treatment for refractive error. A combination of technological advances and increasing surgeon experience has served to further refine refractive outcomes and reduce complication rates.
Gerard Sutton+2 more
openaire +3 more sources
First multicenter survey on infectious keratitis following excimer laser surgery in Japan [PDF]
PurposeTo report the first multicenter survey in Japan on infectious keratitis after excimer laser surgery.MethodsThe laser in situ keratomileusis (LASIK) Safety Network (LSN) Committee sent questionnaires to 28 LSN member hospitals to assess the total ...
Ide, Takeshi+6 more
core +1 more source