Pilot study about dose-effect relationship of ocular injury in argon laser photocoagulation

Chen, P.; Zhang, C. P.; Fu, Xiao; Zhang, T. M.; Wang, C. Z.; Qian, Hao; San, Q.

doi:10.1134/s1054660x11050070

Cited by 4 publications

(2 citation statements)

References 27 publications

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“…As we showed in former studies the application of fs-LASIK, in which ultrashort laser pulses are used in the near-infrared, can present a possible damage potential to the retina, because only a certain amount of the pulse energy is deposited in the cornea, the clear ocular media are diaphanous for these wavelengths in the front segment of the eye and the remaining energy interacts with the retina and the strong absorbing tissue layers behind [6][7][8]. In former studies [6] we compared retina damage thresholds simulating the fs-LASIK process with two laser systems in the continuous wave (CW) and the fs-regime.…”

Section: Laser In Situ Keratomileusis (Lasik)mentioning

confidence: 91%

Fundus oculipigmentation studies simulating the fs-LASIK process

Sander¹,

Minet

Zabaryło

et al. 2012

Laser Phys. Lett.

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The femtosecond-laser in situ keratomileusis (fs-LASIK) technique has successfully entered the refractive surgery market to correct ametropia by cutting transparent corneal tissue with ultra-short laser pulses based on photodisruption. The laser pulses in the near infrared range (NIR) generate a laser-induced breakdown (LIOB) in the cornea. By propagating through the eye, a certain amount of the pulse is deposited in the cornea and the remaining energy interacts with the strong absorbing tissue behind. Due to the absorption by the retinal pigment epithelium and the transfer of the thermal energy to surrounding tissue, the transmitted energy can induce damage to the retina. The aim of this project was to find out the threshold influences concerning the tissue and the correlation between the results of the macroscopical appraisal and the fundus oculi pigmentation by simulating the fs-LASIK procedure with two various laser systems in the continuous wave (CW) and fs-regime. Therefore ex-vivo determinations were carried out macroscopically and histopathologically on porcine tissue.

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Section: Laser In Situ Keratomileusis (Lasik)mentioning

confidence: 91%

Fundus oculipigmentation studies simulating the fs-LASIK process

Sander¹,

Minet

Zabaryło

et al. 2012

Laser Phys. Lett.

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“…In this procedure not all of the pulse energy is deposited into the corneal tis sue during the laser induced breakdown. The remain ing pulse energy propagates further through the clear ocular media and hits defocused the retina and the strongly absorbing retinal pigment epithelium behind [9,10].…”

Section: Introductionmentioning

confidence: 99%

Comparison of retina damage thresholds simulating the femtosecond-laser in situ keratomileusis (fs-LASIK) process with two laser systems in the CW- and fs-regime

Sander¹,

Minet

Zabaryło

et al. 2012

Laser Phys.

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The femtosecond laser in situ keratomileusis procedure affords the opportunity to correct ametropia by cutting transparent corneal tissue with ultra short laser pulses. Thereby the tissue cut is gener ated by a laser induced optical breakdown in the cornea with ultra short laser pulses in the near infrared range. Compared to standard procedures such as photorefractive keratectomy and laser in situ keratomileusis with the excimer laser, where the risk potential for the eye is low due to the complete absorption of ultraviolet irradiation from corneal tissue, only a certain amount of the pulse energy is deposited in the cornea during the fs LASIK process. The remaining energy propagates through the eye and interacts with the retina and the strong absorbing tissue layers behind. The objective of the presented study was to determine and compare the retina damage thresholds during the fs LASIK process simulated with two various laser systems in the CW and fs regime.

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Effects of low-intensity laser irradiation on the apoptosis of rabbit vascular smooth muscle cells in culture

Chen

Zhang

et al. 2011

Laser Phys.

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Pilot study about dose-effect relationship of ocular injury in argon laser photocoagulation

Cited by 4 publications

References 27 publications

Fundus oculipigmentation studies simulating the fs-LASIK process

Fundus oculipigmentation studies simulating the fs-LASIK process

Comparison of retina damage thresholds simulating the femtosecond-laser in situ keratomileusis (fs-LASIK) process with two laser systems in the CW- and fs-regime

Effects of low-intensity laser irradiation on the apoptosis of rabbit vascular smooth muscle cells in culture

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