Shorter Exposure + Highest Intensity = PHOTODISRUPTION (YAG laser) 5. Two-photon microscopy-guided femtosecond-laser photoablation of avian ... Energy is concentrated in time and space to create . TYPESOFLASER 1- Helium neon laser was the first laser system to be used in clinical and research applications. Inside the tissue, the laser light intensity is exponentially attenuated: I = I 0 Exp[-x/A], where A is absorption depth from Figure 3.When laser intensity I 0 is greater than ablation threshold . Photodisruption: (resulting from extremely rapid photovaporisation) creation of ionised plasma causing shock-waves that breaks apart mineralised, hard deposits (LASER LITHOTRIPSY: breaking up gallstones and stones in the urinary tract), When dye is concentrated in a target the laser light can cause the target to Refractive Surgery: Comparison of Femtosecond Lasers - Medscape Safety seemed high and comparable. Photoionizing (photodisruption) In Photoionization high-energy light (1064 nm) is deposited over a short interval to target tissue, stripping electrons from the molecules of that tissue which then rapidly expands, causing an acoustic shock wave that disrupts the treated tissue. 10. YAG laser is used to "zap" (photodisruption) the capsule causing it to split and pull back leaving a clear area of 3-4mm in size 27 Lasers (surgery) - EyeWiki During the procedure, a femtosecond laser prepares a refractive lenticule within the cornea. Until . Femtosecond laser photodisruption of vitelline vessels of avian embryos ... Photoablation: here laser in the far ultraviolet wavelength (350 nm) is used. Photodisruption of the iridal tissue results in the formation of plasma, which propagates toward the endothelium. Photoionizing (photodisruption) Photodisruption The posterior capsule is transparent to visible and near- infrared light.
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