Darja Horvat (Author), Tomaž Požar (Author), Bojan Starman (Author), Miroslav Halilovič (Author), Rok Petkovšek (Author)

Abstract

Comparative analysis of pressure wave propagation, following laser-induced ablation of the human cornea, was performed. Evolution of the pressure field as well as temporal and spatial dependencies of the transient pressure amplitudes created at various input laser parameters, corresponding to different typical procedures of laser eye surgery, is presented comprehensively. The computations were performed with the next generation of the acoustic eye model, previously validated against existing measurements. The analysis allows the assessment of potentially problematic regions within the eye where the resultant positive and/or negative pressure may exceed values which are considered safe for the patient.

Keywords

shock waves;photoablation;laser ultrasonics;cavitation;acoustic focusing;negative pressure;

Data

Language: English
Year of publishing:
Typology: 1.01 - Original Scientific Article
Organization: UL FS - Faculty of Mechanical Engineering
UDC: 519.6:615.849.7(045)
COBISS: 15652611 Link will open in a new window
ISSN: 0947-8396
Views: 529
Downloads: 377
Average score: 0 (0 votes)
Metadata: JSON JSON-RDF JSON-LD TURTLE N-TRIPLES XML RDFA MICRODATA DC-XML DC-RDF RDF

Other data

Secondary language: Slovenian
Secondary title: Učinki fokusiranja tlačnega vala po laserskih medicinskih postopkih v človeških očeh
Secondary abstract: Izvedena je bila primerjalna analiza širjenja tlačnega vala po laserski ablaciji človeške roženice. Izčrpno je predstavljeno širjenje tlačnega polja ter časovne in prostorske odvisnosti amplitud tlaka, ustvarjenih z različnimi vhodnimi laserskimi parametrih, ki ustrezajo različnim značilnim postopkom laserskih operacij oči. Izračuni so bili izvedeni z naslednjo generacijo akustičnega modela očesa, predhodno potrjenim z naslombo na obstoječe meritve. Analiza omogoča oceno potencialno problematičnih področij v očesu, kjer lahko pozitivni in/ali negativni tlak preseže vrednosti, ki veljajo za varne za pacienta.
Secondary keywords: udarni valovi;fotoablacija;laserski ultrazvok;kavitacija;akustično fokusiranje;negativni tlak;
Type (COBISS): Article
Pages: str. 1-9
Volume: ǂVol. ǂ126
Issue: ǂiss. ǂ6
Chronology: Jun. 2020
DOI: 10.1007/s00339-020-03539-w
ID: 11699553