Laser eye surgery is a painless, safe and efficient treatment to get rid of spectacles and contact lenses. Refractive errors such as nearsightedness, longsightedness and astigmatism can be treated by reshaping the cornea of the eye. There are various factors that needs to be considered to determine if you are eligible for Lasik eye surgery or not. One of the factor is thick corneas. Know why is it important to have a thick cornea.