The second impression of the procedure is to appropriateness an excimer laser (193 nm) to remodel the corneal stroma. The laser vaporizes tissue in a finely controlled manner without damaging adjacent stroma. No burning with heat or actual cutting is imperative to ablate the tissue. The layers of tissue removed are tens of micrometers thick. Performing the laser ablation in the deeper corneal stroma about provides for exceeding rapid visual recovery and less pain, than Orange County Lasik the earlier technique photorefractive keratectomy (PRK).
Myopic (nearsighted) people who are close to the age (mid- to late-forties) when they will require either paraphrase glasses or bifocal eyeglasses may find that they still depend upon reading glasses despite having undergone refractive LASIK surgery. This is not a complication but an expected creature of the natural laws of optics. Although there is currently no method to completely eradicate the committal for construction glasses in this group, it may be minimized by performing a variation of the LASIK procedure called "slight monovision."