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Why use ultrashort pulses in ophthalmology and which factors affect cut quality

Published inMedicina, vol. 57, no. 7, 700
Publication date2021
Abstract

The power density of femtosecond lasers and exposure time to the tissue are crucial for a successful procedure in terms of safety and precision. The reduction of the pulse duration allows reducing the quantity of the energy to be delivered to the tissue for disruption with strongly diminished mechanical and thermal collateral damage. The cutting effect of ultra-short pulses is very precise, minimally traumatic, safe, and predictable. Future developments will lead to further energy reductions to achieve optical breakdowns. However, the pulse length cannot be shortened arbitrarily because below 100 fs nonlinear effects can change the process in an unfavorable way. Compared to manual-conventional cataract surgery, femtosecond laser-assisted cataract surgery (FLACS) shows many advantages in clinical application, especially with regard to precision and tissue protection. The femtosecond laser has become particularly important and has made the overall procedure safer when we deal with complex cataract cases such as subluxated lenses. We provide an overview of the evolution of femtosecond laser technology for use in refractive and cataract surgeries. This article describes the advantages of available laser platforms with ultrashort pulses and mainly focuses on the technical and physical backgrounds of ophthalmic surgery technologies.

Keywords
  • Femtosecond laser
  • Ultra-short pulses
  • Cut quality
Citation (ISO format)
PAJIC, Bojan et al. Why use ultrashort pulses in ophthalmology and which factors affect cut quality. In: Medicina, 2021, vol. 57, n° 7, p. 700. doi: 10.3390/medicina57070700
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Article (Published version)
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ISSN of the journal1010-660X
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Technical informations

Creation07/20/2021 3:08:00 PM
First validation07/20/2021 3:08:00 PM
Update time03/16/2023 1:07:01 AM
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