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Kvantovaya Elektronika, 2012, Volume 42, Number 3, Pages 262–268 (Mi qe14760)  

This article is cited in 6 scientific papers (total in 6 papers)

Laser applications and other topics in quantum electronics

Femtosecond lasers for microsurgery of cornea

S. K. Vartapetova, D. V. Khudyakovb, K. E. Lapshina, A. Z. Obidina, I. A. Shcherbakovc

a Physics Instrumentation Center, A. M. Prokhorov General Physics Institute, Troitsk, Moscow region
b Optosystems Ltd., Troitsk, Moscow
c Prokhorov General Physics Institute of the Russian Academy of Sciences, Moscow
References:
Abstract: The review of femtosecond laser installations for medical applications is given and a new femtosecond ophthalmologic system for creation of a flap of corneal tissue during the LASIK operation is described. An all-fibre femtosecond laser emitting ~400-fs pulses at 1067 nm is used. The pulse repetition rate can vary from 200 kHz up to 1 MHz. The output energy of the femtosecond system does not exceed 1 μJ. A specially developed objective with small spherical and chromatic aberrations is applied to focus laser radiation to an area of an eye cornea. The size of the focusing spot does not exceed 3 μm. To process the required area, scanning by a laser beam is applied with a speed no less than 5 m s-1. At a stage of preliminary tests of the system, the К8 glass, organic PMMA glass and specially prepared agarose gels are used as a phantom of an eye. The femtosecond system is successfully clinically tested on a plenty of eyes of a pig and on several human eyes. The duration of the procedure of creation of a corneal flap does not exceed 20 s.
Keywords: ophthalmologic laser system, LASIK, femtosecond fibre laser, femtosecond laser pulse — tissue interaction, photodisruption, single-wall carbon nanotubes.
Received: 28.10.2011
English version:
Quantum Electronics, 2012, Volume 42, Issue 3, Pages 262–268
DOI: https://doi.org/10.1070/QE2012v042n03ABEH014760
Bibliographic databases:
Document Type: Article
PACS: 42.62.Be, 42.55.Wd, 42.65.Re, 87.50.W-, 87.19.Pp
Language: Russian


Citation: S. K. Vartapetov, D. V. Khudyakov, K. E. Lapshin, A. Z. Obidin, I. A. Shcherbakov, “Femtosecond lasers for microsurgery of cornea”, Kvantovaya Elektronika, 42:3 (2012), 262–268 [Quantum Electron., 42:3 (2012), 262–268]
Linking options:
  • https://www.mathnet.ru/eng/qe14760
  • https://www.mathnet.ru/eng/qe/v42/i3/p262
  • This publication is cited in the following 6 articles:
    Citing articles in Google Scholar: Russian citations, English citations
    Related articles in Google Scholar: Russian articles, English articles
    Квантовая электроника Quantum Electronics
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    Full-text PDF :319
    References:45
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