Cases were treated using a diode laser delivery system through either an operating microscope adapter (OMA) or a laser indirect ophthalmoscope (LIO) with a 20D lens. -since the etch depth per laser pulse is predictable, photoablation can remove material layer by later in very thin laters-photoablation is not a thermal effect and is considered a "cold" process 22 . Photodisruption As with the Nd:YAG laser, FSL cuts tissue through a process of photodisruption (in contrast to excimer and argon lasers that use photoablation and photocoagulation, respectively 10 ). Photodisruption is a process in which high-peak-power, ionizing laser pulses are used to disrupt tissue. In this report we evaluated the effect of femtosecond laser energy on the development of corneal haze and keratocyte activation in rabbits following i… Letters, review articles, animal or laboratory studies, and conference . Expanding vapor bubble leads to tissue rupture and ejection of tissue fragments; LASIK and other corneal refractive surgery with the ArF excimer laser. photoablation (excimer), and photodisruption (Nd:YAG) lasers. P. S. photodisruption) photon energy (breaking molecular bonds, photoablation) spectral transmission properties of the eye. Refractive Surgery: Comparison of Femtosecond Lasers It is a flapless procedure in which an intrastromal lenticule is created between two photodisruption planes and removed mechanically from an arcuate side cut of 3 to 4 mm . The flap creation process through the use of femtosecond laser is generally referred to as "Photodisruption". • The output is highly collimated laser beam about 1 mm to less than 1cm. Optometry. PDF REFRACTIVE SURGERY FEATURE STORY Comparing Femtosecond Lasers - CRSToday It is caused by molecules with an electron transition from low-energy orbital to higher (non-bounded) orbitals absorbing high-energy photons. hearts remodeled between the area of the av cushion that was disrupted and rapidly at this magnitude (as described in av photoablation incident laser energy (fig. Femtosecond Laser Assisted Cataract Surgery (FLACS): an overview Refractive Surgery: Smiles All Around - Review of Optometry US9427356B2 - Photodisruptive laser fragmentation of tissue - Google ...