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Femtosecond Laser Techniques And Technology Pdf

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Metrics details. A retrospective study of eyes operated for cataract. Efficacy index which equals post-operative mean of uncorrected distance visual acuity UDVA divided by preoperative mean corrected distance visual acuity CDVA was calculated in both groups.

Javascript is currently disabled in your browser. Several features of this site will not function whilst javascript is disabled. Received 3 November Published 19 April Volume Pages — Review by Single anonymous peer review.

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For half a decade now, cataract surgeons in ever-increasing numbers are employing the femtosecond laser for arcuate and corneal incisions, capsulotomy, and lens fragmentation before they perform the somewhat reduced part of manual surgery, the removal of the lens fragments and the intraocular lens implantation. Indeed, the new technology does not suffer a shortage of names. A small review recently came up with 28 different procedure names, but chances are there are more around. We believe that it is time to give the procedure a name that captures the excitement of the users and reflects its nature. Probably for now, but what do we know about a not-so-distant future in which another laser with a different pulse, not yet developed, might possibly perform different steps of surgery even better, even more precise?

Thank you for visiting nature. You are using a browser version with limited support for CSS. To obtain the best experience, we recommend you use a more up to date browser or turn off compatibility mode in Internet Explorer. In the meantime, to ensure continued support, we are displaying the site without styles and JavaScript. Femtosecond laser-assisted cataract surgery FLACS represents a potential paradigm shift in cataract surgery, but it is not without controversy.

Femtosecond-Laser-Assisted Cataract Surgery (FLACS)

Femtosecond laser technology has become widely adopted by ophthalmic surgeons. The purpose of this study is to discuss applications and advantages of femtosecond lasers over traditional manual techniques, and related unique complications in cataract surgery and corneal refractive surgical procedures, including: LASIK flap creation, intracorneal ring segment implantation, presbyopic treatments, keratoplasty, astigmatic keratotomy, and intrastromal lenticule procedures. The femtosecond FS laser operates in the infrared range wavelength: 1, nm and uses ultrafast pulses with a duration of fs 10—15 seconds. Like neodymium-doped yttrium aluminum garnet laser, FS laser is solid and capable of causing disruption in stromal tissue through the principle of photoionization, resulting in the rapid formation of a cloud of free electrons and ionized molecules. Small volumes of tissue are vaporized, with the formation of cavitation bubbles made up of carbon dioxide and water.


The purpose of this study is to discuss applications and advantages of femtosecond lasers over traditional manual techniques, and related.


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Femtosecond-Laser-Assisted cataract surgery FLACS offers surgeons a reproducible, non-invasive technique to replace the least predictable and technically most demanding steps of conventional cataract procedures. A computer-guided laser linked to an optical imaging system e. OCT performs the corneal incision, capsulotomy, and lens fragmentation steps, thus changing the requirements associated with traditional techniques by removing the need for blade incisions and reducing phacoemulsification time and energy.

Femtosecond lasers have been in routine use in refractive surgery for several years now. While surgeons have reported Become part of the innovation A radically new approach to Femtolaser technology Most femtosecond lasers currently on the market are based on the same basic technology that has been in use in femtolasers since they were introduced to ophthalmology several years ago. Laser sources operating at tens to hundreds of kilohertz are fed to analog amplifiers to achieve high pulse energies for creating large cavitation bubbles to disrupt corneal tissue.

It is not very detailed or mathematical, but has excellent phenomenonological discussions of a variety of laser properties and techniques … I found particularly useful the sections on amplification, semiconductor lasers, and ultrashort diagnostics.

Search this site. Advances in Carbohydrate Chemistry and Biochemistry: v. Advisory Leadership PDF.

Three-dimensional femtosecond laser processing for lab-on-a-chip applications

It is not very detailed or mathematical, but has excellent phenomenonological discussions of a variety of laser properties and techniques … I found particularly useful the sections on amplification, semiconductor lasers, and ultrashort diagnostics.

1 Comments

Abdul H. 18.05.2021 at 10:52

FEMTOSECOND LASER. Techniques & Technology. Visalia. Editors-in-Chief. Ashok Garg. Jorge L Alió. Honorary Editors. A John Kanellopoulos. Mark Wevill.

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