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" ... But, while such surgery has a relatively high success rate, it is an invasive procedure and thus subject to post-surgical complications. In addition, laser-assisted vision correction surgeries such as LASIK still use technology that can thin and in some cases weaken the cornea. And then there's always the fears faced by the patient in having their eye ball messed around with. ... "
" ... The surface of the cornea is the epithelium, a lining of cells that helps your eye absorb oxygen and nutrients from tears and the outside world and protect your eye from foreign objects such as water, dust, dirt and microorganisms. Damaging your corneal epithelium in any way can impair its ability to protect and feed your eye. Think of this as significantly damaging the outside doors and walls of your car. Even if you patch up the damage, your car may not ever be protected as well again. ... "