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Literature DB >> 22894525

Finite element model of the temperature increase in excised porcine cadaver iris during direct illumination by femtosecond laser pulses.

Abstract

In order to model the thermal effect of laser exposure of the iris during laser corneal surgery, we simulated the temperature increase in porcine cadaver iris. The simulation data for the 60 kHz FS60 Laser showed that the temperature increased up to 1.23°C and 2.45°C (at laser pulse energy 1 and 2 [micro sign]J, respectively) by the 24 second procedure time. Calculated temperature profiles show good agreement with data obtained from ex vivo experiments using porcine cadaver iris. Simulation results of different types of femtosecond lasers indicate that the Laser in situ keratomileusis procedure does not present a safety hazard to the iris.

Mesh：

Year: 2012 PMID： 22894525 PMCID： PMC4019366 DOI： 10.1117/1.JBO.17.7.078001

Source DB: PubMed Journal: J Biomed Opt ISSN： 1083-3668 Impact factor: 3.170

33 in total

1. Direct measurement of microkeratome gap width by electron microscopy.

Authors: K Y Liu; D S Lam
Journal: J Cataract Refract Surg Date: 2001-06 Impact factor: 3.351

2. The relative absorption of thermal energy in retina and choroid.

Authors: W J GEERAETS; R C WILLIAMS; G CHAN; W T HAM; D GUERRY; F H SCHMIDT
Journal: Invest Ophthalmol Date: 1962-06

3. Flap dimensions created with the IntraLase FS laser.

Authors: Perry S Binder
Journal: J Cataract Refract Surg Date: 2004-01 Impact factor: 3.351

4. Comparative study of stromal bed quality by using mechanical, IntraLase femtosecond laser 15- and 30-kHz microkeratomes.

Authors: Melvin A Sarayba; Teresa S Ignacio; Perry S Binder; Dan B Tran
Journal: Cornea Date: 2007-05 Impact factor: 2.651

5. Compact directly diode-pumped femtosecond Nd:glass chirped-pulse-amplification laser system.

Authors: C Horvath; A Braun; H Liu; T Juhasz; G Mourou
Journal: Opt Lett Date: 1997-12-01 Impact factor: 3.776

6. Mini-invasive corneal surgery and imaging with femtosecond lasers.

Authors: Meng Han; Günter Giese; Leander Zickler; Hui Sun; Josef Bille
Journal: Opt Express Date: 2004-09-06 Impact factor: 3.894

7. [Scanning electron microscopic characteristics of lamellar keratotomies using the Femtec femtosecond laser and the Zyoptix XP microkeratome. A comparison of quality].

Authors: J Heichel; T Hammer; R Sietmann; G I W Duncker; F Wilhelm
Journal: Ophthalmologe Date: 2010-04 Impact factor: 1.059

Finite element model of the temperature increase in excised porcine cadaver iris during direct illumination by femtosecond laser pulses.

1. Direct measurement of microkeratome gap width by electron microscopy.

2. The relative absorption of thermal energy in retina and choroid.

3. Flap dimensions created with the IntraLase FS laser.

4. Comparative study of stromal bed quality by using mechanical, IntraLase femtosecond laser 15- and 30-kHz microkeratomes.

5. Compact directly diode-pumped femtosecond Nd:glass chirped-pulse-amplification laser system.

6. Mini-invasive corneal surgery and imaging with femtosecond lasers.

7. [Scanning electron microscopic characteristics of lamellar keratotomies using the Femtec femtosecond laser and the Zyoptix XP microkeratome. A comparison of quality].

8. A corneal flap technique for laser in situ keratomileusis. Human studies.

Review 9. The use of the femtosecond laser in the customization of corneal flaps in laser in situ keratomileusis.

10. First clinical results with the femtosecond neodynium-glass laser in refractive surgery.

1. Investigating the ocular temperature rise during femtosecond laser lens fragmentation: an in vitro study.