PTK gets rid of superficial irregular tissue from your cornea using an excimer laser. It is frequently useful for corneal scars, surface area irregularities or recurrent erosions. The health practitioner places eye drops as part of your eyes to numb them. Then a lid speculum is placed inside the eyes https://bookmarkspecial.com/story21028131/how-much-you-need-to-expect-you-ll-pay-for-a-good-lasik-eye-surgery